The winter storm of February 1-2, 2011, will be remembered by many in northern and central Illinois. The National Weather Service (NWS) did an excellent job of producing forecasts and warnings on this storm. In the aftermath, we have began collecting the snowfall measurements from a variety of networks. Rather than list all the data […]
According to information at the National Climatic Data Center, here are the record 1-day, 2-day, and 3-day snowfall totals by county. These are based on data through December 2006. At most locations, snowfall is only measured once a day and many snow storms can last more than one day. Therefore, the 2- and 3-day snowfalls […]
The Illinois statewide average temperature for January 1-15, 2010, was 21.5 degrees, 2.3 degrees below normal. The statewide average precipitation for the same period was 0.75 inches, 84 percent of normal. Precipitation includes both rainfall and the water content of any snowfall. After a very active December in terms of snowfall, January has been relatively […]
Read More from First Half of January – Slightly Colder than Normal
December 2010 in Illinois turned out to be one of the coldest and snowiest on record. I updated the numbers on January 3 and the maps on January 5. Temperature The average statewide temperature was 24.0 degrees, 5.8 degrees below normal and the 12th coldest on record, based on preliminary data. Snowfall Snowfall was above-normal throughout […]