Official 1981-2010 Climate Normals City: FLORA 5 NW State: IL ID: 113109 Latitude: 38.7103 Longitude: -88.5758 Elevation: 499.9 ft Temperature-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 39.3 44.5 55.8 67.9 76.2 84.7 87.7 86.8 80.3 69.0 55.5 41.8 Mean: 31.0 35.3 45.2 56.2 65.0 73.6 76.8 75.4 68.2 57.2 46.0 33.7 Low: 22.6 26.0 34.7 44.4 53.8 62.6 66.0 63.9 56.0 45.4 36.4 25.6 CDD: 0 0 4 28 97 268 368 323 152 28 2 0 HDD: 1055 833 617 293 97 9 0 2 57 270 574 970 Number of Days T090: 0.0 0.0 0.0 0.1 0.6 5.5 10.0 9.4 3.0 0.1 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.3 0.3 0.1 0.0 0.0 0.0 T000: 1.3 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9 T032: 24.1 19.3 13.0 3.2 0.1 0.0 0.0 0.0 0.2 3.2 11.1 21.6 ------------------------------------------------------------------------------------------ Annual Values High Temp: 65.9 F Mean Temp: 55.4 F Low Temp: 44.9 F Cooling DD: 1270 Heating DD: 4777 Days above 90 (T090): 28.7 Days above 100 (T100): 0.7 Days below 0 (T000): 3.0 Days below 32 (T032): 95.7 ------------------------------------------------------------------------------------------ Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 3.08 2.59 3.78 4.01 5.23 4.24 3.92 3.43 3.05 3.64 4.26 3.34 Snow: 2.5 1.6 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 2.1 Number of Days P001: 7.4 6.7 8.4 9.8 10.4 9.0 7.4 6.9 6.4 7.8 8.5 8.2 P010: 5.0 4.9 6.8 7.4 8.2 7.0 5.8 5.1 5.1 6.0 6.8 6.3 P100: 0.7 0.7 0.8 1.1 1.4 1.0 1.0 1.0 0.9 1.1 1.2 0.7 S001: 1.9 1.5 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 1.2 S010: 0.9 0.6 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.5 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: 44.57 inches Snowfall: 7.8 inches Days precipitation at or above 0 inches (P000): 96.9 Days precipitation at or above 0.10 inches (P010): 74.4 Days Precipitation at or above 1.00 inches (P100): 11.6 Days Snowfall at or above 0.1 inches (S001): 5.6 Days Snowfall at or above 1.0 inches (S010): 2.4 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