The states fire tower network was extended due to increased fire risk. The NClimDiv database hosts multiple types of historical averages: 30-year averages starting from 1901, 1895-2010 average, and 20th century average, the latter is being used in this experience. In Pinellas County, FL, sheriff deputies rescued 33 people from flooded homes and stalled vehicles. Twelve of the 35 major climate sites had their least snowy February on record. Below-average temperatures occurred across parts of the Southeast Interior region. Almost the entire Northeast saw below-normal snowfall during spring and the snow season (October through May). Conversely, Oklahoma had the fewest tornado reports (31), Tennessee had the fewest hail reports (60), and Louisiana had the fewest wind reports (256). One of the largest fires burned over 8,600 acres in Collier County and forced a portion of I-75 to close. Unfortunately, in early June the total area experiencing at least abnormally dry conditions began to increase. Some areas of the region, especially western and southern Colorado, had departures over 2.0 degrees F (1.1 degrees C), which led to many locations ranking in the top 10 warmest years on record. On the same day, Caribou had a low temperature of 50 degrees F (10 degrees C), its warmest minimum temperature for winter on record. Rhode Island officials noted that fires were climbing trees and were concerned that items like lawn mowers and chains could spark fires, which is a behavior more typical of western U.S. wildfires and unusual in the Northeast. Hartford, Connecticut, recorded 39 days this summer with a high of at least 90 degrees F (32 degrees C), its greatest on record for summer. The U.S. Drought Monitor released in June 25 showed 16 percent of the Northeast in a moderate drought and 26 percent was abnormally dry. The highest annual precipitation total for any station (excluding CoCoRaHS) across the region was recorded in Highlands, which surpassed its previous wettest year on record (2018) by 11.04 inches (280 mm). The only streak longer was during the first 32 weeks of 2019. Across the region, the strong winds downed trees and wires and damaged homes and buildings. 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. Wet weather continued to delay field work across North Carolina, with reports of negative impacts on the wheat crop due to waterlogged soils. The summer was much more active, however, with several notable events occurring, such as the Western U.S. derecho in June and the Midwestern U.S. derecho in August, which started in the High Plains region. It was the first time in Baltimore, Marylands 128 years of recordkeeping that that site saw no snow during February. This ranked as the fifth-warmest year in the 126-year record. Showing: All Year January February Numerous fallen trees, mudslides, and river flooding were reported in southwestern Puerto Rico, according to local emergency management officials. Data for 2020 should be considered preliminary. Severe weather in the region was spread across many months, however the most newsworthy was a severe derecho on August 10th. 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. Most of the contiguous U.S. experienced above-average temperatures during 2020. Average daily maximum temperatures were well above average along coastal portions of the region. On June 10, Dulles Airport, Virginia, tied its warmest June low temperature with a low of 74 degrees F (23 degrees C). The U.S. Drought Monitor released on July 30 showed 29 percent of the Northeast in a severe or moderate drought and 42 percent was abnormally dry. On the 16th, Pensacola, FL observed its fourth wettest day for any month on record, with 11.85 inches (301 mm) of rainfall. Louisiana, Mississippi, and Texas experienced a top-10 warmest year on record, and the region as a whole had an average annual temperature of 63.58 degrees F (17.54 degrees C), making it the fourteenth-warmest year on record. Population figures correspond to data from the closest year available. 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. In July, the warmest month, the average day time temperature rises to 90.6F. As the derecho headed east the winds eased slightly but continued to do significant damage in the other states affected. 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. average or The nationally averaged minimum temperature (overnight lows) during 2020 was 42.4F, 2.4F above average and also ranked sixth warmest in the 126-year record. Precipitation was drier than normal across all six states. The US average is 28 inches of snow per year. One particularly notable event was severe flash flooding in the northern suburbs of Philadelphia, Pennsylvania, on July 6. This was the eighth straight year above the 1981-2010 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. The tornadoes and wind gusts caused structural damage and downed numerous trees. Hawaii, for the second year in a row, saw above normal temperatures that were in some cases record-breaking. 8th warmest year. The storm contributed to hundreds of vehicle crashes, including a pileup involving more than 65 vehicles on Interstate 80 in central Pennsylvania. Forecasts. During the summer, drought conditions expanded to include over 70 percent of Wyoming and nearly all of Colorado. 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). A complex storm system brought severe weather and snow to the Northeast in early April. In addition, Augusta, GA (18712020) observed only its second trace of snowfall on Christmas Day since records began 149 years ago. Issues with extreme wetness carried over into 2020 in parts of the Northern Plains, however. In Mantua, Utah, the Four states (Indiana, Kentucky, Missouri, and Ohio) have had six straight years above normal while the other five states, and the region as a whole, were below normal in 2019. Flooding issues were noted especially in eastern Kentucky in February, the Ohio River flood plain in the spring but also along the Mississippi River system. A historic snowstorm dropped snow on almost every part of the Northeast from December 16 to 17. 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). That 21-week stretch extended to a 29-week stretch when the last eight weeks of 2019 were added making it the second longest stretch with no drought in the region since 2000. The tornadoes downed trees, destroyed outbuildings, and damaged roofs and siding of some buildings. These regional summaries were provided by the six Regional Climate Centers and reflect conditions in their respective regions. In addition, hundreds of pecan trees were uprooted across southern Alabama, with some of the losses occurring in 90-year-old orchards. A climate graph showing rainfall, temperatures and normals. Burn bans were enacted in several locations. Climate is the average of weather over time. 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. Snow-water equivalent (SWE) was near-normal to much-above normal for most of the region, with February 1st SWE as high as 200% of normal in Utah and southwestern Wyoming and 150% of normal in Colorado and the rest of Wyoming. Ultimately, the year ended with 82 percent of the region in drought, which was up 70 percent from the beginning of the year. Flooding in southeastern Pennsylvania, Delaware, and portions of New Jersey and Maryland led to road closures, stranded vehicles, and water rescues. Low reservoir levels and streamflows were contributing factors to the widespread drought intensification in 2020 throughout the West. Much of New England experienced the emergence of drought during the second half of 2020 with marked improvement by the end of the year. Several other locations had one of the five snowiest Octobers on record. Caribou, ME, also had significant snow during the 2019-2020 season receiving 146 inches and ranked ninth highest for any season on record. On August 7, just a few days after Isaias' excessive rainfall, strong storms produced heavy rain and more flash flooding in southeastern parts of the region. Warm extremes in both maximum and minimum temperature across much of the U.S. in addition to wet conditions across the Southeast and dry conditions in the West contributed to this elevated USCEI value. The Census Bureau has three population estimation programs: Postcensal, Intercensal, and Vintage. Salt Lake City averages 54 inches of snow per year. Straight-line winds of up to 80 mph (36 m/s) caused extensive damage in several locations. In addition, there was one fatality in Margate City, New Jersey, due to a rip current. Mount Washington, New Hampshire, had its highest August wind gust of 147 mph (66 m/s). Cordova had its 4th driest year dating back to 1910 with 64.02 in (1626.11 mm, 71% of normal) and Kenai also saw its 4th driest year since records began in 1900 at 11.72 in (297.69 mm, 64% of normal). During October, beneficial rainfall improved drought conditions in portions of New England; however, drought and abnormal dryness expanded or intensified in parts of New York and Pennsylvania. Millions of acres of crops were flattened by the storm. In addition, Highlands was only 3.44 inches (87 mm) short of exceeding the highest annual precipitation total ever recorded in North Carolina, which occurred just two years ago on Mt. in November 2022, population by difference from average precipitation in November 2022. Although drought has impacted parts of the region in recent years, such as the 2017 Northern Plains drought, this is the most expansive drought in the region since 2012-2013. Wildfire activity across Alaska was below average and consumed approximately 181,000 acres in 2020 only 15 percent of the 2010-2019 average. Such methodology was applicable to all counties in the contiguous United States. All values that fell below or above two standard deviations are defined as climatic anomalies; cooler/wetter than or warmer/drier than the historical norm, respectively. Explore where these weather factors are staying average and when the monthly average hit a 20-year anomaly. 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. To the west, West Virginia saw flood-inducing heavy rain, with the greatest totals approaching 4 inches (102 mm). Although the season was below average, it was more than the 1993 to 2020 minimum of 23,000 acres set in 2004. A rare flash flood emergency was issued by the Philadelphia/Mt. experiencing similar The timing was particularly bad for farmers that were in the midst of harvesting a variety of vegetable crops bound for holiday tables, including sweet corn, green beans, lettuce, cabbage, and radishes. This resulted in many locations ranking among the top 10 snowiest Septembers and Octobers on record. UDOT exceeds annual $24M budget on snow removal, plowing by: Kayla Baggerly. 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. On October 7, a derecho produced a 320-mile (515 km) long path of damage from central New York to eastern New England. There were approximately 4,523 severe weather reports throughout the Southern Region for 2020, with 394 tornado reports, 1,310 hail reports, and 2,819 wind reports. Climate Utah - Annual snowfall accumulations were below average across much of the Southeast region, particularly in the higher elevations of North Carolina and Virginia. Pecan production was substantially impacted for this years crop, as many immature nuts were blown to the ground. Autumn was wetter and warmer than normal for most of the Southern Region. Several notable widespread wind events occurred in the Northeast this year. On December 31, a strong low-pressure system over the north Pacific Ocean deepened to 921 millibars (27.20 inches of mercury) as it crossed over Attu Island, the westernmost of the Aleutian Island chain. The extreme departures in annual mean temperatures across the region were driven primarily by exceptionally warm daily minimum temperatures, as a persistent influx of tropical moisture and cloud cover suppressed nighttime cooling during the year. The area of drought in southwestern Florida persisted until early June, while the area of drought in coastal Alabama lasted until late June. July was warmer than normal across all six states, with Texas experiencing its sixth-warmest July on record. This was the states largest winter tornado outbreak. The U.S. Drought Monitor released on January 2, 2020, showed less than 1 percent of the Northeast, a small area in Maryland and Delaware, as abnormally dry. drier than normal monthly precipitation for On the 12th, Appomattox, VA (19372020) and Concord 4 SSW, VA (19502020) observed their second and third wettest day for any month on record, with 7.28 and 6.85 inches (185 and 174 mm) of precipitation, respectively. In addition, several stations observed their highest or second highest annual count of days with a minimum temperature at or above 75 degrees F (23.9 degrees C), including Fort Lauderdale, FL (19122020; 186 days, 51 percent of the year), Sarasota-Bradenton, FL (19112020; 132 days, 36 percent of the year), Vero Beach, FL (19422020; 98 days, 27 percent of the year), and Albany, GA (18922020; 44 days, 12 percent of the year). After making landfall near Creole, LA on October 9th, the remnants of Hurricane Delta impacted parts of the Southeast with heavy rain and flooding. Spring was warmer and wetter than normal for the Southern Region. The 8.59.5 feet (2.62.9 meters) of storm surge destroyed many sand dunes and sea turtle nests in Oak Island, NC. On November 11th and 12th, the interaction of moisture surging northward from Tropical Storm Eta and an approaching cold front produced 3 to more than 8 inches (76 to more than 203 mm) of rainfall across much of the Carolinas and Virginia. The remnants of Hurricane Cristobal moved across the region June 8th-10th. Snowfall averages for: Alta Brian Head Brighton Ogden Provo. 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. The year ended quite warm, with a continuation of much-above-normal temperatures in December for most of the region. Seven of the 12 landfalling storms produced at least $1 billion in damage, breaking the old record of four separate billion-dollar tropical cyclones in both 2004 and 2005. All state rankings are based on the period spanning 1895-2020. In August, every state except for Arkansas and Oklahoma experienced warmer than normal temperatures, while every state except for Oklahoma and Texas experienced wetter than normal conditions. During summer and fall, groundwater levels were also well below normal in many drought areas. On April 13th, the strongest tornado of the year across the Southeast region occurred in Hampton County, SC. In western areas of the region, drought conditions deteriorated rapidly and caused numerous impacts to agriculture and water resources. Bellingham, Washington recorded 41.36 in (1050.54 mm, 115% of normal) making it the sixth wettest year since 1949. WebThe NClimDiv database hosts multiple types of historical averages: 30-year averages starting from 1901, 1895-2010 average, and 20th century average, the latter is being A climate graph showing rainfall, temperatures experiencing similar A stream gauge near Colesville, Maryland, rose eight feet (2.4 m) in around an hour. The US average is 38 inches of rain per year. This years drought could reduce next years growth of red oak and white pine trees in New Hampshire. This led to rapid rises and moderate flooding on some waterways. WebMesoWest Precipitation Totals. Near record warmth was found throughout Arizona with both Phoenix (77.2 F [25.1 C], 2.1 F [1.2 C] above normal) and Tucson (72.6 F [22.6 C], 3.2 F [1.8 C] above normal) reporting the second warmest years on record. The National Centers for Environmental Information (NCEI), is a sub-bureau of the National Oceanic and Atmospheric Administration (NOAA). Corn and soybean crops in the Midwest had favorable conditions in 2020 except for the areas hit by drought and the derecho. Eight of the Northeast states were drier than normal while four were wetter than normal. This was the eighth straight year above the 1981-2010 normal for the region. In addition, Burlington, Vermont, tied its greatest number of June days with a high of at least 90 degrees F (32 degrees C). A standard deviation measures the amount of variability among the numbers in a data set, the typical distance of a data point from the mean of the data and is calculated against the NClimDiv data as: Source Agency: Monthly (within first week of each month). difference from average precipitation Most of the drought is focused on the central islands of Molokai, Maui, Kahoolawe, and Lanai with severe and extreme drought present. 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