Official 1981-2010 Climate Normals City: PLUMFIELD State: IL ID: 116874 Latitude: 37.9117 Longitude: -89.0092 Elevation: 404.8 ft Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 3.01 2.93 4.09 4.20 5.11 3.92 3.80 2.79 2.90 3.59 4.33 3.83 Snow: 2.3 2.8 1.4 0.1 0.0 0.0 0.0 0.0 0.0 0.3 0.1 3.0 Number of Days P001: 7.4 7.3 9.5 9.0 10.6 8.3 7.3 6.6 6.3 7.4 8.8 8.8 P010: 5.0 5.4 6.8 6.8 8.1 6.2 5.5 4.7 4.7 5.4 6.1 6.4 P100: 0.7 0.7 1.1 1.1 1.8 1.0 1.3 0.7 0.9 0.9 1.1 0.9 S001: 2.0 1.9 0.5 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.1 1.4 S010: 1.1 1.2 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.0 1.0 S100: 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ------------------------------------------------------------------------------------------ Annual Values Precipitation: 44.50 inches Snowfall: 10.0 inches Days precipitation at or above 0 inches (P000): 97.3 Days precipitation at or above 0.10 inches (P010): 71.1 Days Precipitation at or above 1.00 inches (P100): 12.2 Days Snowfall at or above 0.1 inches (S001): 6.1 Days Snowfall at or above 1.0 inches (S010): 3.9 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