Official 1981-2010 Climate Normals City: KEWANEE 1 E State: IL ID: 114710 Latitude: 41.2428 Longitude: -89.8997 Elevation: 779.7 ft Temperature-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 29.6 34.5 47.1 60.6 71.2 80.4 83.5 81.9 75.3 63.0 48.2 33.5 Mean: 21.3 25.8 37.0 49.2 60.1 69.9 73.1 71.2 63.1 51.3 38.9 25.4 Low: 13.0 17.0 26.9 37.7 49.0 59.3 62.8 60.4 50.8 39.6 29.7 17.4 CDD: 0 0 0 7 45 174 257 204 70 7 0 0 HDD: 1354 1099 868 482 197 29 5 13 129 432 782 1226 Number of Days T090: 0.0 0.0 0.0 0.0 0.2 2.1 4.4 2.9 0.9 0.0 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 0.0 0.0 0.0 0.0 T000: 5.6 3.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.3 T032: 29.2 25.3 22.5 8.2 0.3 0.0 0.0 0.0 0.3 6.5 18.5 28.2 ------------------------------------------------------------------------------------------ Annual Values High Temp: 59.2 F Mean Temp: 49.0 F Low Temp: 38.7 F Cooling DD: 764 Heating DD: 6615 Days above 90 (T090): 10.5 Days above 100 (T100): 0.3 Days below 0 (T000): 12.1 Days below 32 (T032): 138.9 ------------------------------------------------------------------------------------------ Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 1.59 1.74 2.63 3.43 4.14 4.58 3.94 4.22 3.51 2.87 2.83 2.12 Snow: 7.9 6.2 2.7 0.8 0.0 0.0 0.0 0.0 0.0 0.2 0.7 8.1 Number of Days P001: 8.1 7.6 9.5 10.5 12.7 11.8 10.0 10.0 8.0 10.5 9.8 9.6 P010: 4.0 3.9 5.7 7.0 7.5 6.9 6.4 6.4 5.1 5.5 5.7 4.8 P100: 0.2 0.3 0.4 0.7 1.0 1.4 1.2 1.3 0.8 0.6 0.6 0.3 S001: 4.8 4.1 1.6 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.6 4.8 S010: 2.3 2.0 0.9 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.8 S100: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 ------------------------------------------------------------------------------------------ Annual Values Precipitation: 37.60 inches Snowfall: 26.6 inches Days precipitation at or above 0 inches (P000): 118.1 Days precipitation at or above 0.10 inches (P010): 68.9 Days Precipitation at or above 1.00 inches (P100): 8.8 Days Snowfall at or above 0.1 inches (S001): 16.4 Days Snowfall at or above 1.0 inches (S010): 8.6 Days Snowfall at or above 10.0 inches (S100): 0.1 ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ KEY: High - average daily high temperature, degrees F Mean - average daily mean temperature, degrees F Low - average daily low temperature, degrees F CDD - cooling degree days, base 50F HDD - heating degree days, base 50F T090 - number of Days with Temperatures above 90 degrees F T100 - number of Days with Temperatures above 100 degrees F T000 - number of Days with Temperatures below 0 degrees F T032 - number of Days with Temperatures below 32 degrees F Prcp - precipitation, inches Snow - snowfall, inches P001 - number of Days with Precipitation of 0.01 inches or more P010 - number of Days with Precipitation of 0.10 inches or more P100 - number of Days with Precipitation of 1.00 inches or more S001 - number of Days with Snowfall of 0.1 inches or more S010 - number of Days with Snowfall of 1.0 inches or more S100 - number of Days with Snowfall of 10.0 inches or more Page Source: Dr. Jim Angel, State Climatologist Illinois State Water Survey Prairie Research Institute University of Illinois Data Source: NOAA National Climatic Data Center