Official 1981-2010 Climate Normals City: WEST FRANKFORT State: IL ID: 119148 Latitude: 37.9089 Longitude: -88.9317 Elevation: 424.8 ft Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 2.71 2.91 3.99 4.14 4.82 3.93 3.43 3.09 2.75 3.57 4.41 3.74 Number of Days P001: 5.8 6.1 8.6 8.7 9.5 8.2 6.8 7.0 5.5 6.1 7.0 7.5 P010: 4.5 5.1 6.5 7.2 7.3 6.4 5.5 5.8 4.3 5.1 6.0 5.9 P100: 0.5 0.6 1.0 0.8 1.6 1.1 1.1 1.0 0.9 0.9 1.4 0.9 ------------------------------------------------------------------------------------------ Annual Values Precipitation: 43.49 inches Days precipitation at or above 0 inches (P000): 86.8 Days precipitation at or above 0.10 inches (P010): 69.6 Days Precipitation at or above 1.00 inches (P100): 11.8 ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ 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