![]() A single storm early in the month dropped over 10 feet of snow on the California mountains. The huge amounts of snow also increased the avalanche threat. While the storms provided much needed drought relief for California and Nevada, the heavy precipitation caused widespread flooding and mudslides. A series of Pacific storms slammed into the West Coast during January.The deadliest single tornado from the event was an EF-3 that tracked 24 miles across southern Georgia, killing 11 people. Southern Georgia and Mississippi were the hardest hit areas with over 20 tornado-related fatalities. There were over 80 preliminary tornado reports, although the confirmed final count will likely be lower. A strong storm system swept through the Southeast during January 20-22, spawning tornadoes from Texas to South Carolina.Above-average snow cover was observed across the West, Northern Plains, and Mid-Atlantic, with below-average snow cover in parts of the Southern Plains and Midwest. snow cover extent was 1.51 million square miles, 148,000 square miles above the 1981-2010 average, and the 13 th largest in the 51-year period of record. According to an analysis of NOAA data by the Rutgers Global Snow Lab, the January contiguous U.S.Reliable records in Lihue date back to 1905. Lihue, on Kauai, had its driest January on record with 0.20 inch of rain, only 5 percent of average. Most locations across Hawaii were drier than average in January with abnormally dry conditions expanding to 55 percent of the state.For the first time since March 2011, no location in the country was experiencing Exceptional Drought (D4), the worst category. Drought also improved across parts of the Southern Plains, Southeast and Northeast. Despite the heavy precipitation, multi-year precipitation deficits persist. Drought improved by several categories across California and Nevada where a series of Pacific storms dumped significant amounts rain and snow. was in drought, down from 22.5 percent at the beginning of the month. Drought Monitor report, 14.6 percent of the contiguous U.S. No state was record wet or dry in January. ![]() Below-average precipitation was observed across parts of the Northwest and Mid-Mississippi Valley. Ten states had much-above-average January precipitation. ![]() Much-above-average precipitation was observed across the Southwest, Southern Plains, Midwest and Southeast. This was the ninth wettest January on record and wettest since 1998. The national January precipitation total was 3.18 inches, 0.87 inch above the 20 th century average.Based on NOAA's Residential Energy Demand Temperature Index (REDTI), January 2017 ranked ninth lowest in the 123-year record for January, due to much-warmer-than-normal temperatures across the densely populated Midwest and Northeast.During January there were 5,849 record warm daily high (2,299) and low (3,550) temperature records, which is more than two and a half times the 2,318 record cold daily high (1,266) and low (1,052) temperature records.Parts of the Northwest and Northern Rockies had below-average minimum temperatures. Above-average minimum temperatures were observed for most locations from the Rockies to East Coast, with 32 states in the Southern Plains and from the Mississippi River to East Coast were much warmer than average. average minimum (nighttime) temperature during January was 24.4☏, 4.6☏ above the 20 th century average, the eighth warmest on record. Below-average maximum temperatures were observed across the West and in the Northern Rockies. Above-average maximum temperatures were observed for most locations east of the Rockies with much-above-average maximum temperatures in the Southeast, central Great Lakes, and Northeast. average maximum (daytime) temperature during January was 42.9☏, 2.4☏ above the 20 th century average, the 31 st warmest on record. Northern areas of Alaska, particularly along the Arctic Coast, were warmer than average, while most other regions had near- to below-average temperatures. This ranked near the median value in the 93-year period of record for the state and was also the coldest January for the state since 2012. ![]()
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