Official 1981-2010 Climate Normals City: UTICA STARVED ROCK State: IL ID: 118756 Latitude: 41.3242 Longitude: -88.9858 Elevation: 459.9 ft Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 1.73 1.76 2.79 3.37 4.18 3.70 3.95 4.07 3.17 2.77 3.15 2.35 Snow: 7.0 5.6 2.6 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.3 3.9 Number of Days P001: 9.8 8.4 10.8 11.3 11.6 10.1 9.2 9.2 7.8 9.7 10.9 10.3 P010: 4.2 3.9 5.8 6.6 7.6 6.3 6.2 5.8 5.0 5.3 6.6 4.8 P100: 0.2 0.3 0.4 0.6 1.2 1.0 1.2 1.0 1.0 0.6 0.9 0.3 S001: 4.3 2.8 1.4 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.2 S010: 2.3 1.7 0.8 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.3 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: 36.99 inches Snowfall: 19.9 inches Days precipitation at or above 0 inches (P000): 119.1 Days precipitation at or above 0.10 inches (P010): 68.1 Days Precipitation at or above 1.00 inches (P100): 8.7 Days Snowfall at or above 0.1 inches (S001): 11.2 Days Snowfall at or above 1.0 inches (S010): 6.4 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