Warm November in Illinois, Illinois State Water Survey

ISWS Press Release

For Immediate Release December 3, 2010
Warm November in Illinois
Jim Angel - (217) 333-0729, jimangel@illinois.edu
Lisa Sheppard - (217) 244-7270, sheppard@illinois.edu

CHAMPAIGN, Ill. - The statewide average rainfall for October was 1.4 inches, 1.5 inches below normal. This ranks as the 20th driest October on record, according to State Climatologist Jim Angel of the Illinois State Water Survey (http://www.isws.illinois.edu).

The largest monthly rainfall total was reported at Belvidere with 3.94 inches. While northern Illinois was close to normal on rainfall in October, parts of southern and eastern Illinois remained dry. The U.S. Drought Monitor lists those areas as "abnormally dry" and southeastern Illinois as "moderate drought." At this time of year, the main impacts on agriculture would be on pasture conditions and winter wheat.

With the vegetation preparing for winter and lower temperatures, the demands on soil moisture are close to zero. So soil moisture should start to recover in the next few months even if precipitation remains below normal.

The statewide average temperature for October was 56.2 degrees, 1.6 degrees above normal.

The highest temperature for the month was reported at Fairfield with 93 degrees on October 10. The lowest temperature for the month was reported at Minonk with 22 degrees on October 29 and Sidell with 22 degrees on October 30.

The National Weather Service temperature outlook for November includes increased odds of warmer and than normal conditions across Illinois. The precipitation outlook includes increased odds of drier than normal conditions in southwestern Illinois with neutral odds in the rest of the state.

The outlook for November–January includes increased odds of warmer than normal conditions in Illinois. The same outlook is neutral on precipitation for Illinois, except for the Wabash River valley which has an increased chance of above normal precipitation.

The Illinois State Water Survey at the University of Illinois at Urbana-Champaign, a division of the Institute of Natural Resource Sustainability, is the primary agency in Illinois concerned with water and atmospheric resources.

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