Official 1981-2010 Climate Normals City: HOOPESTON 1NE State: IL ID: 114198 Latitude: 40.4742 Longitude: -87.6564 Elevation: 709.8 ft Temperature-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 33.8 38.1 50.4 63.4 73.8 83.1 85.4 84.0 78.3 65.6 51.2 37.2 Mean: 25.6 29.3 40.4 52.5 63.0 72.8 75.3 73.6 66.5 54.8 42.2 29.7 Low: 17.5 20.6 30.4 41.5 52.3 62.5 65.3 63.2 54.6 44.0 33.3 22.1 CDD: 0 0 1 14 80 250 322 272 122 18 1 0 HDD: 1220 998 764 390 141 16 1 5 78 334 683 1096 Number of Days T090: 0.0 0.0 0.0 0.0 0.8 4.7 6.7 5.0 1.7 0.0 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.0 0.0 0.0 0.0 T000: 3.6 1.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.8 T032: 27.6 23.9 18.1 5.1 0.2 0.0 0.0 0.0 0.1 2.8 14.2 25.1 ------------------------------------------------------------------------------------------ Annual Values High Temp: 62.1 F Mean Temp: 52.2 F Low Temp: 42.4 F Cooling DD: 1079 Heating DD: 5726 Days above 90 (T090): 18.8 Days above 100 (T100): 0.3 Days below 0 (T000): 7.1 Days below 32 (T032): 117.2 ------------------------------------------------------------------------------------------ Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 1.76 1.90 2.79 3.62 4.67 4.38 4.39 4.06 2.76 3.49 3.23 2.31 Snow: 4.7 4.8 1.6 0.4 0.0 0.0 0.0 0.0 0.0 0.1 0.4 5.7 Number of Days P001: 8.1 7.4 9.0 10.6 10.9 10.2 9.2 8.4 7.2 8.5 8.9 8.4 P010: 4.2 4.3 5.6 7.2 8.0 7.6 6.8 5.9 4.8 6.0 6.4 5.5 P100: 0.3 0.5 0.5 0.7 1.2 1.1 1.2 1.1 0.7 1.0 0.7 0.4 S001: 3.8 3.3 1.3 0.4 0.0 0.0 0.0 0.0 0.0 0.1 0.7 3.5 S010: 2.1 2.0 0.5 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.2 2.1 S100: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ------------------------------------------------------------------------------------------ Annual Values Precipitation: 39.36 inches Snowfall: 17.7 inches Days precipitation at or above 0 inches (P000): 106.8 Days precipitation at or above 0.10 inches (P010): 72.3 Days Precipitation at or above 1.00 inches (P100): 9.4 Days Snowfall at or above 0.1 inches (S001): 13.1 Days Snowfall at or above 1.0 inches (S010): 7.0 Days Snowfall at or above 10.0 inches (S100): 0.0 ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ 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