![]() This ranked as the 36 th warmest April-September on record. warm season temperature was 65.7☏, 0.6☏ above average. Climate Highlights - warm season (April - September).On the daily scale during September, there were 4,285 record warm daily high (1,091) and low (3,194) temperature records and 2,869 record cold daily high (2,122) and low (747) temperature records.This was also 1☏ shy of the all-time warmest temperature on record at Hilo, which occurred in November 2013. On September 26 th, the temperature at Hilo reached 93☏, besting the previous warmest September temperature record for the city set on September 21, 1951. The end of September was notably warm for Hawaii, with several daily and monthly temperature records broken.Alaska's September precipitation total was 9.0 percent above the 1971-2000 average. Locations in western Alaska were notably warm Cold Bay had its warmest September on record. The state had its 11 th warmest September in its 1918-2014 record, with a temperature 2.5☏ above the 1971-2000 average. Alaska was warmer and slightly wetter than average during September.Drought continued to impact California and Nevada, with nearly 100 percent of both states in moderate-to-exceptional drought. Abnormally dry conditions developed in the Mid-Atlantic region. Drought conditions improved across the Southwest, Great Basin, Central Plains, and southern Georgia, while conditions worsened in parts of the Southern Plains, Southeast, and the Northeast. was in drought, down from 32.8 percent at the beginning of the month. Drought Monitor report, 30.6 percent of the contiguous U.S. Several locations in the Black Hills of South Dakota set new records for earliest date of snowfall greater than 1.0 inch including Mount Rushmore which received 8.1 inches of snow and Rapid City which received 1.6 inches. On September 10 th and 11 th, an early season snow storm and blast of cold air brought snow to parts of the Northern Rockies and Plains.The deluge caused massive flash flooding and the high water forced the closure U.S. The Phoenix Sky Harbor airport received 3.30 inches of rain in a seven-hour period on the 8 th breaking the record for the rainiest calendar day in Phoenix since records began in 1895. Locations around Phoenix, Arizona received over six inches of precipitation. On September 7 th and 8 th, a plume of moisture associated with the remnants of Hurricane Norbert brought heavy rain to the Desert Southwest.Much of the Mid-Atlantic and Northeast were drier than average, where Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont each had one of the 10 driest Septembers on record.Parts of the Northern Plains were also wetter than average, where heavy rain caused flooding and record monthly precipitation at a few locations in western South Dakota and Nebraska. Arizona, New Mexico, and Utah each had a top 10 wet September. The Southwest was much wetter than average, where enhanced monsoonal flow and the remnants of Hurricanes Norbert and Odile brought an abundance of moisture to the region. The near-average September precipitation total for the contiguous U.S.September 2014 Statewide Precipitation ranks The average minimum (nighttime) September temperature was 54.1☏, 2.2☏ above the 20 th century average, the eighth warmest on record. ![]() was 78.3☏, 0.5☏ above the 20 th century average, ranking near the median value in the 120-year period of record. The average maximum (daytime) September temperature for the contiguous U.S. This ranked as the 26 th warmest September in the 120-year period of record. The September national temperature was 66.2☏, 1.3☏ above average. ![]() Freezing temperatures typically impact high-elevation and northern locations first and expand southward as autumn progresses.
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