Official 1981-2010 Climate Normals City: HIGHLAND State: IL ID: 114089 Latitude: 38.7583 Longitude: -89.6556 Elevation: 524.8 ft Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 2.45 2.52 3.59 4.09 4.93 4.11 3.99 3.53 3.22 3.70 4.38 3.13 Snow: 4.3 2.3 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.9 Number of Days P001: 6.6 6.3 8.5 9.5 10.5 8.9 7.6 6.9 6.4 6.8 7.6 7.1 P010: 4.1 4.4 6.1 7.2 7.6 6.9 5.9 5.1 4.8 5.5 6.5 4.9 P100: 0.5 0.6 0.9 0.9 1.4 1.2 1.2 1.3 1.0 1.2 1.1 1.0 S001: 3.0 1.9 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 1.7 S010: 1.6 0.8 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.9 S100: 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ------------------------------------------------------------------------------------------ Annual Values Precipitation: 43.64 inches Snowfall: 10.8 inches Days precipitation at or above 0 inches (P000): 92.7 Days precipitation at or above 0.10 inches (P010): 69.0 Days Precipitation at or above 1.00 inches (P100): 12.3 Days Snowfall at or above 0.1 inches (S001): 7.9 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