While 25 long-term stations observed average daily maximum temperatures that were ranked within their five warmest values on record, more than four times the number of stations (102) observed average daily minimum temperatures that were ranked within their five warmest values on record. The event, which qualified as a derecho, caused widespread damage, downing trees and wires, knocking out power to more than 500,000 customers, and causing four deaths. Northern Delaware experienced some of its worst flash flooding in at least 15 years. The rapid drop in temperatures, from warm conditions just prior to the freeze, exacerbated the situation. As much as 5 inches (127 mm) of rain fell in a two-hour period on September 10, leading to flash flooding in Washington, D.C., and surrounding suburbs. The result was strong wind gusts for the entire Northeast and a major late season snowstorm for parts of Maine and New Hampshire from April 9 to 10. One of the wetter locations was northern Washington, west of the Cascades. In February, five of six states experienced warmer than normal conditions (Texas was slightly cooler than normal) while all six states were wetter than normal, with Mississippi experiencing its fifth-wettest February on record while Tennessee experienced its eighth-wettest February on record. In addition, Burlington, Vermont, tied its greatest number of June days with a high of at least 90 degrees F (32 degrees C). Winter was warmer and wetter than normal for most of the Southern Region, with the region experiencing its tenth-warmest winter on record. There were numerous closed roads, submerged vehicles, and dozens of water rescues. Numerous roads in the urbanized corridor of southeastern Florida became impassable due to flooding, with many reports of stalled or submerged vehicles. Use of irrigation was widespread; however, in some locations it was expensive or water supplies ran low or dried up. During the spring, wet conditions across portions of the Southeast disrupted the application of herbicides, fertilizers, and nutrients to fields. April U.S. Release: Mon, 8 May 2023, 11:00 AM EDT, Alabama, South Carolina, North Carolina, Virginia, West Virginia, Maryland and Delaware, NOAA's Residential Energy Demand Temperature Index (REDTI), contiguous U.S. average annual precipitation, lowest known mean sea level pressure on record, nine climatic regions of the National Climatic Data Center, Northeast Regional Climate Center Home Page, Southeast Regional Climate Center Home Page, High Plains Regional Climate Center Home Page, Southern Regional Climate Center Home Page, Western Regional Climate Center Home Page. Long-term weather stations reported record warmth in Oregon, California, and New Mexico. more than 0.4C cooler than March 2016, the warmest March on record. Up to 5 inches (127 mm) of rain fell, with the greatest amounts in northern and eastern Maine. Like most years, 2020 temperatures were quite variable throughout the year. Roanoke, VA (19122020) reported 8.32 inches (211 mm) of rainfall during this event, which is its fourth wettest 3-day rainfall total for any month on record. Between 3 and 6 inches (76 to 152 mm) of rain fell in a two-hour period at rainfall rates of 3 or more inches (76 mm) per hour. Surface air temperature for March 2021 | Copernicus Farther inland, winds gusted over 50 mph (22 m/s) in northern Georgia, Upstate South Carolina, and North Carolina, resulting in widespread downed trees and power outages. 2020 was a year of transition for the High Plains region, as cool, wet conditions over the past two years gave way to a warmer and drier regime. Every state experienced a warmer than normal winter, with every state experiencing a top-20 warmest winter on record while Tennessee experienced its sixth-warmest winter on record. Every state reported wetter than normal conditions. There were several flash flooding events during the year. All state rankings are based on the period spanning 1895-2020. Global Temperature Report for 2021 - Berkeley Earth Wetter-than-normal weather during December helped alleviate drought and abnormally dry conditions in much of the Northeast. Every state except for Texas experienced wetter than normal conditions. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color . San Francisco, California, with one of the longest climate records in the state dating back to 1850, recorded its second driest year on record at 7.81 in (198.37 mm, 33% of normal). All but three of these 25 stations were located in North Carolina and Virginia. Iowa ranked as the 30th driest in its history. Iowa had its 3rd driest August in history. Twenty-five fatalities and at least 166 injuries were caused by tornadoes during the year. Annual precipitation averaged across the Midwest was 37.72 inches (958 mm), 0.78 inches (20 mm) above normal. Hurricane Zeta was responsible for wind gusts over 100 mph (160.93 kph) in southeastern Louisiana, while Hurricane Laura generated a wind gust of 133 mph (214.04 kph) in southwestern Louisiana. The California fire season started slow but then exploded due to a rare dry thunderstorm event in mid-August. The monthly average temperature in the United States between 2020 and 2023 shows distinct seasonal variation. Portions of West Virginia and the Mid-Atlantic also saw freezing rain, with ice accumulations of up to 0.41 inches (10.41 mm), and sleet. In Puerto Rico, moderate drought developed in mid-May and continued to intensify and expand in coverage through the early summer. Average daily maximum temperatures were well above average along coastal portions of the region. Annual 2021 Global Climate Report | National Centers for Environmental This topped the 12-week stretch in early 2019 with no abnormally dry conditions. These economic ramifications occur for several reasons, which include higher. The largest hailstones observed during the year were teacup-sized (i.e., 3-inch or 76-mm diameter), which were reported in Vernon, AL on March 29th, Darlington County, SC on May 5th, and Lake Mary, FL on May 21st. The record of 163 consecutive days was set last year. Yield losses in Iowa were due to a combination of drought and damages from the derecho. On December 16th, a winter storm produced freezing rain, sleet, and snow across portions of North Carolina, Virginia, and Washington, D.C. Red indicates places that were warmer than average, and blue indicates places that were colder than average. The greatest storm snow totals approached 21 inches (53 cm). Drought conditions also dried up or reduced water supplies that some firefighters rely on to fight fires. Excessive rainfall, paired with high humidity, in Georgia slowed the drying down of corn, with many farmers battling whiteflies and boll rot in cotton. For instance, one Rhode Island farm lost 90 percent of its saplings and another farm did not open for the holiday season. Some reservoirs also experienced below-normal water levels. In parts of North Carolina, the soybean harvest was delayed due to heavy rainfall and flooding from Eta, while newly seeded livestock pastures sustained damage. Wind gusts of 40 mph (18 m/s) to 80 mph (36 m/s) damaged buildings and downed trees and wires, leading to power outages. On the 30th, San Juan (18982020) observed its second wettest July day on record, with 4.46 inches (113 mm) of precipitation. The total cost of U.S. billion-dollar disasters over the last five years (2016-2020) exceeds $600 billion. On December 24th and 25th, an extensive squall line associated with a vigorous cold frontal passage produced convective wind gusts exceeding 45 mph (20 m/s) along coastal portions of the region, including 49 mph (22 m/s) at Charleston International Airport, SC, 59 mph (26 m/s) at Brunswick Golden Isles Airport, GA and Tampa International Airport, FL, 61 mph (27 m/s) at Newport News/Williamsburg International Airport, VA, and 64 mph (29 m/s) at Billy Mitchell Airport on Cape Hatteras, NC. The global mean temperature in 2021 is estimated to have been 1.21 C (2.17 F) above the average temperature from 1850-1900, a period often used as a pre-industrial baseline for global temperature targets. Hartford, Connecticut, tied its coldest June temperature on record on June 1 with a low of 37 degrees F (3 degrees C). Approximately 64 percent of the 168 long-term stations across the region observed annual precipitation totals that were at least 12 inches above average. The June 2021 global surface temperature was the fifth highest for June in the 142-year record at 0.88C (1.58F) above the 20th century average. England: monthly mean temperature 2022 | Statista June 2021 Global Climate Report | National Centers for Environmental In addition, West Virginia had its eighth wettest year while Maryland had its ninth wettest. Caribou, Maine, tied its greatest number of June nights with a low of 32 degrees F (0 degrees C) or lower on June 1 and 2. Several tropical systems affected the Northeast this year, with Tropical Storm Fay, Tropical Storm Isaias, and Tropical Storm Zeta being particularly noteworthy. Thundersnow and snowfall rates of 2 to 3 inches (5 to 8 cm) per hour were reported in central New York, where several roads were shut down due to accidents. The warmth kicked off in January with Boston, Massachusetts; Providence, Rhode Island; and Bridgeport, Connecticut, having their warmest January day on record with highs near or above 70 degrees F (21 degrees C). Ultimately, the year ended with 82 percent of the region in drought, which was up 70 percent from the beginning of the year. The global land-only surface temperature was the eighth highest on record at +1.40C (+2.52F). With many of these large fires burning simultaneously, heavy smoke and poor air quality impacted many of the western states and Canada over many days during September. The total area experiencing at least abnormally dry conditions grew from roughly one-third of the region to two-thirds of the region by the end of the year while the total area experiencing exceptional drought conditions increased. Because they are updated once per decade, the Normals gradually come to reflect the "new normal" of climate change caused by global warming. A historic snowstorm dropped snow on almost every part of the Northeast from December 16 to 17. On January 11th, a thunderstorm wind gust of 75 mph (34 m/s) in Greene County, AL blew a very large tree down onto the water main in Forkland, and many thousands of gallons of water spilled out of the water tower. Caribou, ME, also had significant snow during the 2019-2020 season receiving 146 inches and ranked ninth highest for any season on record. One particularly notable event was severe flash flooding in the northern suburbs of Philadelphia, Pennsylvania, on July 6. According to the U.S. Drought Monitor, there were substantial changes in drought conditions across the High Plains region over the course of the year. Tropical Storm Isaias, the Atlantic Oceans earliest "I" named tropical system on record, produced extreme rainfall, tornadoes, and damaging winds in the Northeast on August 4. The rate of warming since 1981 is more than twice as fast: 0.32 F (0.18 C) per decade. With a daily maximum temperature of 24 degrees F (-4.4 degrees C), Asheville, NC (18762020) recorded its coldest Christmas Day since 1983, while Huntsville, AL (19072020) observed its coldest Christmas Day since 1985, with a daily maximum temperature of 32 degrees F (0 degrees C). Six of the 12 Northeast states also recorded their hottest July on record: Connecticut, Delaware, Maryland, New Hampshire, New Jersey, and Pennsylvania. In June, dam releases were reduced in New Hampshire due to dropping lake levels, resulting in small hydropower plants no longer being able to generate power. Several other locations had one of the five snowiest Octobers on record. Storm reports also indicated that hail accumulation of several inches was plowed off roads in western West Virginia. The precursor disturbance to Tropical Storm Bertha caused a significant multi-day rainfall event across southern Florida, with accumulations of more than 8 inches in several locations. Above-average annual precipitation was observed from the Great Lakes and Plains to the Southeast and Mid-Atlantic regions. Annual snowfall accumulations were below average across much of the Southeast region, particularly in the higher elevations of North Carolina and Virginia. In addition, it was the first time on record with no measurable snow in both February and March for Bridgeport, Connecticut; Islip and Kennedy Airport, New York; and Allentown and Harrisburg, Pennsylvania. Winterthur, Delaware, saw 4.11 inches of rain (104.39 mm), more than a month's worth, in an hour, with 1.03 inches (26.16 mm) of that falling in five minutes, qualifying as a 1,000-year storm event. Get in touch with us now. Hurricane Zeta made landfall near Cocodrie, LA on October 28th, with a wind gust of 91 mph (41 m/s) reported in Mobile, AL. The highest winds, over 100 miles per hour (161 km per hour), were in central Iowa causing severe damage to crops and trees. California, Nevada, and the Four Corners states all received below normal precipitation with some pockets of above normal in Washington, Oregon, Idaho, and Montana. Drought conditions expanded in coverage and intensified rapidly over the next month, with moderate-to-severe drought covering 83 percent of Florida by mid-April. Multiple residences were destroyed by this fire, and many residents were told to evacuate the area. Storm snow totals exceeded 24 inches (61 cm) in an area stretching from central Pennsylvania through New York and into northern New England, where snow fell at rates of at least 3 to 4 inches (8 to 10 cm) per hour. Six hurricanes made U.S. landfall, tying 1886 and 1985 for the most U.S. hurricane landfalls in a single season. With a daily maximum temperature of 35 degrees F (1.7 degrees C), Atlanta, GA (18782020) recorded its coldest Christmas Day since 1989, while Orlando, FL (18922020) observed its coldest Christmas Day since 1995, with a daily maximum temperature of 53 degrees F (11.7 degrees C). On the same day, Atlantic City, New Jersey, saw 3.97 inches (100.84 mm) of rain, making it the sites wettest September day on record. The last time New York and New England experienced drought conditions was in the summer/fall of 2018. Spring was warmer and wetter than normal for the Southern Region. It encompassed nearly the entire West, Northern and central Plains, Great Lakes and much of the East, including. A rare flash flood emergency was issued by the Philadelphia/Mt. Eight of the Northeast states were drier than normal while four were wetter than normal. Philadelphia and Washington, D.C., saw less than an inch of snow for the season for only the third time since 1885. In the HadUK-Grid observational dataset that goes back to 1884, all of the Top 10 warmest years for the UK have occurred since 2002. The winds caused water levels to rise significantly along Lake Eries eastern shoreline, resulting in flooding near Erie, Pennsylvania, and Buffalo, New York. The three largest wildfires in Colorado history occurred during 2020: The Cameron Peak Fire, the East Troublesome Fire and the Pine Gulch Fire each exceeded the acreage burned by the previous record, the 2002 Hayman Fire. In addition, storm surge flooding reached 5.6 feet (1.7 meters) in Pensacola, which is the third highest storm surge ever recorded in the city. Rocky Mountain snowpack was near normal for most of the 2019-20 season (July-June). Climate data on this page is PRELIMINARY (unofficial). Charleston, West Virginia, had its wettest May on record with 8.93 inches (226.82 mm) of precipitation and its wettest spring on record with 19.14 inches (486.16 mm) of precipitation. Met Office: A review of the UK's climate in 2021 - Carbon Brief This years drought could reduce next years growth of red oak and white pine trees in New Hampshire. Earth's temperature has risen by an average of 0.14 Fahrenheit (0.08 Celsius) per decade since 1880, or about 2 F in total. This graph shows the change in global surface temperature compared to the long-term average from 1951 to 1980. According to the U.S. Drought Monitor, 18% of the West was in drought at the beginning of the year with no locations worse than severe drought (D2). Mitchell, NC (19252020) recorded 0.2, 10.2, and 64.2 inches (5, 259, and 1,631 mm) of snowfall during the year, which is 17.9, 12.5, and 13.2 inches (455, 318, and 335 mm) below their long-term averages, respectively. This was approximately 1.35 . This ranked 2020 as the 12th warmest since 1895, and the warmest year since 2012. Drought was largely absent across the Southeast region due to extensive periods of above-average precipitation during the year, but an episode of moderate-to-severe (D1D2) drought did impact much of Florida and coastal Alabama from spring through early summer. About 30 percent (1,154 of 3,843) of these reports were observed during April. For instance, Sioux Falls, SD had its second wettest year on record in 2018, its wettest year in 2019, and then its sixth driest in 2020 (period of record 1893-2021). In Alabama, greenhouses and plastic bedding on vegetables were significantly damaged by Zetas high winds. From July 29th through the 30th, Tropical Storm Isaias impacted parts of Puerto Rico, with over 9 inches (229 mm) of rainfall recorded in Juncos. On January 31st, Charlotte, NC continued its record of reporting at least a trace of snow in every winter season since 1878. Winter wheat was also impacted, with at least 15 percent of the crop in poor to very poor condition at the start of 2021 in Colorado (34 percent), Kansas (17 percent), and Nebraska (15 percent), according to the USDAs National Agricultural Statistics Service. This led to rapid rises and moderate flooding on some waterways. To the north, in western Pennsylvania, three weak (EF-0 or EF-1) tornadoes damaged trees and buildings, the Pittsburgh International Airport recorded its second highest thunderstorm wind gust on record at 75 mph (34 m/s), and a hangar and plane were destroyed at the Arnold Palmer Municipal Airport. In addition, hundreds of pecan trees were uprooted across southern Alabama, with some of the losses occurring in 90-year-old orchards. Precipitation received across Alaska during 2020 varied by region with the eastern interior regions, portions of the Panhandle and Bristol Bay receiving above-average precipitation. Although the vast majority of the Midwestern derecho impacted areas to the east of the region, it is worth noting that this was an incredibly devastating storm that caused an estimated $7.5 billion in damage, according to NOAAs U.S. Billion-Dollar Weather and Climate Disasters event database. Pasture and rangeland conditions were rated very poor (the lowest level) for 70 to 90 percent of southern New England, while 10 percent of Pennsylvanias corn crop was rated very poor, making it some of the worst corn condition ratings in the country. Much of New England experienced the emergence of drought during the second half of 2020 with marked improvement by the end of the year. On the 11th, Rocky Mount-Wilson Regional Airport, NC (20002020) observed its second wettest day for any month on record, with 6.02 inches (153 mm) of precipitation. Some branches and wires were downed in parts of Massachusetts due to snowfall and/or gusty winds. In fact, it was the first time on record that Providence reported a high of 70 degrees F (21 degrees C) in the month of January. In 2020, above-average heat was more widespread than it has been in 2021 so far. Kentucky was the wettest state with 9.97 inches (253 mm) above normal which ranked as the 8th wettest in its history. Although the season was below average, it was more than the 1993 to 2020 minimum of 23,000 acres set in 2004. The region experienced temperatures 2 to 4 degrees warmer than normal in December and January. Temperatures were well above average across much of the Southeast during the year, particularly in Florida and along coastal portions of the region. The lowest known mean sea level pressure on record in Alaska was recorded on the 31st on Shemya Island at Eareckson AFB and registered at 924.8 millibars (27.31 inches of mercury). Temperatures rebounded in the summer, with most states in the High Plains ranking in the top 15 warmest summers on record. Power outages affected millions in the region with many outages lasting days or even weeks in some cases. In addition, Baltimore, Maryland; Hartford, Connecticut; LaGuardia Airport, New York; Philadelphia and Scranton, Pennsylvania; Providence, Rhode Island; and Washington, D.C. recorded their greatest number of days with a high of at least 90 degrees F (32 degrees C) for any month on record. Key West, FL (18712020) received 9.37 inches (238 mm) of rainfall from the storm on the 12th, which is its fifth wettest day for any month on record. Precipitation was primarily wetter than normal, although Arkansas and Texas were slightly drier than normal. The Rio Grande and Great Basin were both at 91% of normal, the Pacific Northwest and Upper Colorado both at 107% of normal, and the Lower Colorado at 108% of normal. In October, Hurricane Zeta caused additional cotton losses in Georgia and the Florida Panhandle, as heavy rainfall led to an increase in boll rot. During summer and fall, groundwater levels were also well below normal in many drought areas. This ranked as the 37th wettest in history since 1895. These areas included portions of northern New England, New York, and Pennsylvania. Meanwhile, autumn was characterized by extreme temperature swings, with October ranking in the top 10 coldest and November ranking in the top 10 warmest for some states in the region. The Central states also experienced a historic severe weather event the. For instance, a roof was blown off a store in Cape May, New Jersey, and a cow barn was tossed into a power pole in Rockland, Massachusetts. In September, many farmers in the Florida Panhandle and southern Alabama reported a loss of cotton, peanuts, and pecans due to the passage of Hurricane Sally. The storm contributed to hundreds of vehicle crashes, including a pileup involving more than 65 vehicles on Interstate 80 in central Pennsylvania. Only Junes of 2015 (fourth warmest), 2016 (second warmest), 2019 (warmest), and 2020 (third warmest) were warmer and had a global temperature departure above +0.90C (+1.62F). All state rankings are based on the period spanning 1895-2020. June was cooler than normal for every state except Oklahoma and Texas, while precipitation was mixed, as three states (Arkansas, Louisiana, and Mississippi) experienced wetter than normal conditions while three states (Oklahoma, Tennessee, and Texas) experienced drier than normal conditions. Utqiagvik reported an annual temperature of 14.6 F (-9.7 C), 3.1 F (1.7 C) above normal and the 8th warmest since 1921. There were two months (March and November) where the entire region experienced a top-10 warmest month on record. The global-mean temperature for March 2021 was higher than the average for 1991-2020, but less extreme than for most months in the last six years. On June 3, a line of intense thunderstorms with wind gusts of up to 93 mph (42 m/s) raced across Pennsylvania and New Jersey. It was the hottest summer on record for Connecticut, Massachusetts, and Rhode Island. Numerous daily precipitation extremes were recorded across the region during the year. In early May, climate experts at NOAA's National Centers for Environmental Information (NCEI) issued an updated collection based on the weather occurring from 1991 to 2020.The data set reflects a "new normal" that takes the most recent 30 years of climate change-influenced weather and climate . Conditions generally improved in the region during November. From November 8th through the 12th, Tropical Storm Eta produced 5 to more than 10 inches (127 to more than 254 mm) of rainfall across portions of west-central and southern Florida. The August Complex, SCU Lightning Complex, Creek Fire, LNU Lightning Complex and the North Complex burned nearly 2.5 million acres in all. Eleven of the Northeasts 35 major climate sites set or tied their record for least snowy March. The average global land and ocean surface temperature for January 2021 was 0.80C (1.44F) above the 20th century average of 12.0C (53.6F). As a result, 2021 is nominally the sixth warmest year to . Warm and dry conditions led to drought development in California and Nevada and major drought intensification in the Four Corners states during Calendar Year 2020. There were no areas of below-average annual temperatures observed across the Lower 48 during 2020. Back-to-back storms from February 5 to 8 brought an extreme mix of weather conditions to the Northeast. Spring freeze damage was reported in a mid-April freeze despite not being particularly late in the season. Strawberry growers in Florida reported higher-than-normal fungal disease pressure and pest pressure due to unusual warmth in January and February. If you have further questions or comments about the GHCN data or the Climate Data Online interface, you can send an email to NOAA NCEI at ncei.orders@noaa.gov or call them at 1-828-271-4800. Corn and soybean crops in the Midwest had favorable conditions in 2020 except for the areas hit by drought and the derecho. All nine Midwest states were above their 1981-2010 normal by 0.9 to 1.8 degrees F (0.5 to 1.0 C). Through the end of summer, most of the Southeast region remained drought-free, except for a few short-lived pockets of moderate drought in portions of northern and coastal Virginia, Georgia, southeastern Alabama, and west-central Florida. Alamosa, Colorado: New daily records for maximum and minimum temperature set in the same day (92.0 degrees F/33.3 degrees C and 37.0 degrees F/2.8 degrees C), July 10 (period of record 1906-2021), Rapid City, South Dakota: Earliest hard freeze (28.0 degrees F/-2.2 degrees C) on record, September 9 (period of record 1942-2021), Pueblo, Colorado: Most number of 90.0 degrees F (32.2 degrees C) days on record for a single year, 99 days (period of record 1888-2021), Denver, Colorado: Highest September temperature on record at 101.0 degrees F (38.3 degrees C), September 5 (period of record 1872-2021), Laramie, Wyoming: Lowest October temperature on record at -26.0 degrees F (-32.2 degrees C), October 27 (period of record 1948-2021). Several nights of frost and freezing temperatures during the month caused some grass damage in pastures across northern and central Florida, while low-lying areas of pastures in southern Florida sustained flooding. 2021 Continued Earth's Warming Trend - NASA The U.S. Drought Monitor released on December 3 showed 21 percent of the Northeast in an extreme, severe, or moderate drought and 33 percent as abnormally dry.
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