Official 1981-2010 Climate Normals City: HARVARD State: IL ID: 113902 Latitude: 42.4147 Longitude: -88.6308 Elevation: 909.9 ft Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 1.45 1.54 2.23 3.42 4.05 4.40 3.63 4.29 3.73 2.85 2.84 1.98 Snow: 9.6 6.9 3.6 0.8 0.0 0.0 0.0 0.0 0.0 0.0 1.3 7.3 Number of Days P001: 10.3 8.1 10.1 11.7 12.5 11.4 9.7 9.7 8.4 9.9 9.2 9.5 P010: 5.0 4.2 4.7 6.8 7.6 7.9 5.6 6.4 5.7 5.8 4.8 5.1 P100: 0.1 0.2 0.4 0.8 1.2 1.1 1.0 1.2 0.9 0.5 0.3 0.3 S001: 6.3 4.1 2.5 0.8 0.0 0.0 0.0 0.0 0.0 0.1 1.2 5.0 S010: 4.2 2.3 1.3 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.6 2.7 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: 36.41 inches Snowfall: 29.5 inches Days precipitation at or above 0 inches (P000): 120.5 Days precipitation at or above 0.10 inches (P010): 69.6 Days Precipitation at or above 1.00 inches (P100): 8.0 Days Snowfall at or above 0.1 inches (S001): 20.0 Days Snowfall at or above 1.0 inches (S010): 11.5 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