Official 1981-2010 Climate Normals City: PIPER CITY State: IL ID: 116819 Latitude: 40.7569 Longitude: -88.1828 Elevation: 669.8 ft Temperature-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 32.7 37.8 49.7 63.4 74.2 83.3 85.9 84.1 78.2 65.5 50.7 36.4 Mean: 24.1 28.4 38.9 51.0 61.7 71.6 74.4 72.2 65.0 53.5 41.1 28.2 Low: 15.6 19.0 28.2 38.5 49.2 59.9 63.0 60.3 51.8 41.4 31.5 19.9 CDD: 0 0 1 10 64 222 296 233 98 14 0 0 HDD: 1266 1025 809 432 166 24 3 10 98 373 717 1142 Number of Days T090: 0.0 0.0 0.0 0.0 1.5 6.0 8.0 5.7 2.4 0.1 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.2 0.5 0.3 0.0 0.0 0.0 0.0 T000: 4.1 2.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 T032: 28.0 25.0 20.7 7.1 0.4 0.0 0.0 0.0 0.2 4.3 16.2 26.9 ------------------------------------------------------------------------------------------ Annual Values High Temp: 61.9 F Mean Temp: 50.9 F Low Temp: 40.0 F Cooling DD: 939 Heating DD: 6064 Days above 90 (T090): 23.7 Days above 100 (T100): 1.0 Days below 0 (T000): 8.3 Days below 32 (T032): 128.8 ------------------------------------------------------------------------------------------ Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 2.25 2.43 2.77 3.64 4.44 3.80 4.76 3.90 2.58 3.27 3.40 3.11 Snow: 7.8 5.9 3.2 1.0 0.0 0.0 0.0 0.0 0.0 0.1 1.0 6.4 Number of Days P001: 8.8 7.2 10.3 12.0 12.7 11.1 9.6 9.8 8.2 10.1 10.3 9.5 P010: 5.3 4.1 6.1 7.6 8.1 7.4 6.9 5.9 5.2 6.1 6.6 5.8 P100: 0.6 0.6 0.7 0.7 1.2 1.0 1.6 1.1 0.6 0.8 1.0 0.6 S001: 5.1 3.3 2.0 0.4 0.0 0.0 0.0 0.0 0.0 0.1 0.9 4.3 S010: 3.2 2.6 1.0 0.2 0.0 0.0 0.0 0.0 0.0 0.1 0.5 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 0.0 ------------------------------------------------------------------------------------------ Annual Values Precipitation: 40.35 inches Snowfall: 25.4 inches Days precipitation at or above 0 inches (P000): 119.6 Days precipitation at or above 0.10 inches (P010): 75.1 Days Precipitation at or above 1.00 inches (P100): 10.5 Days Snowfall at or above 0.1 inches (S001): 16.1 Days Snowfall at or above 1.0 inches (S010): 10.4 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