Official 1981-2010 Climate Normals City: NEWTON 6 SSE State: IL ID: 116159 Latitude: 38.9136 Longitude: -88.1183 Elevation: 509.7 ft Temperature-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 34.6 39.7 50.6 62.7 71.8 81.0 84.4 83.2 77.5 66.0 52.2 38.3 Mean: 27.2 31.1 41.3 52.4 61.7 71.2 74.6 72.6 65.7 54.3 43.0 30.6 Low: 19.8 22.6 32.0 42.0 51.7 61.5 64.7 62.0 53.9 42.6 33.7 22.8 CDD: 0 0 1 11 55 209 298 242 106 14 1 0 HDD: 1172 948 736 390 156 22 2 6 85 346 662 1068 Number of Days T090: 0.0 0.0 0.0 0.0 0.2 2.7 4.8 4.1 1.5 0.0 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 T000: 2.1 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.7 T032: 27.0 23.1 16.2 4.2 0.1 0.0 0.0 0.0 0.0 4.1 13.6 24.6 ------------------------------------------------------------------------------------------ Annual Values High Temp: 61.9 F Mean Temp: 52.2 F Low Temp: 42.5 F Cooling DD: 937 Heating DD: 5593 Days above 90 (T090): 13.2 Days above 100 (T100): 0.2 Days below 0 (T000): 4.8 Days below 32 (T032): 112.9 ------------------------------------------------------------------------------------------ Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 2.55 2.40 3.54 3.95 5.15 3.90 4.46 2.95 3.22 3.36 4.02 3.06 Snow: 4.1 2.7 2.0 0.1 0.0 0.0 0.0 0.0 0.0 0.2 0.6 3.0 Number of Days P001: 7.8 7.4 9.9 10.7 11.1 9.9 8.0 7.7 7.1 8.1 9.5 9.2 P010: 4.7 4.9 6.6 7.7 8.0 6.7 6.1 5.1 4.9 5.4 6.4 5.8 P100: 0.4 0.4 0.8 0.9 1.4 1.0 1.2 0.8 1.0 0.9 1.0 0.7 S001: 2.8 1.8 0.8 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.3 2.4 S010: 1.8 1.1 0.5 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.3 1.4 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: 42.56 inches Snowfall: 12.7 inches Days precipitation at or above 0 inches (P000): 106.4 Days precipitation at or above 0.10 inches (P010): 72.3 Days Precipitation at or above 1.00 inches (P100): 10.5 Days Snowfall at or above 0.1 inches (S001): 8.3 Days Snowfall at or above 1.0 inches (S010): 5.3 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