Official 1981-2010 Climate Normals City: SPRINGFIELD LINCOLN AP State: IL ID: 093822 Latitude: 39.8447 Longitude: -89.6839 Elevation: 594.0 ft Temperature-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 34.8 39.9 52.1 64.6 74.8 83.1 86.2 84.9 78.9 66.4 52.3 38.3 Mean: 26.7 31.2 42.1 53.5 63.7 72.5 75.8 74.2 66.8 55.1 43.1 30.4 Low: 18.7 22.6 32.2 42.4 52.6 61.9 65.4 63.6 54.6 43.8 33.9 22.5 CDD: 0 0 2 18 84 240 335 291 129 22 1 0 HDD: 1186 945 711 363 125 15 1 4 76 329 658 1072 Number of Days T090: 0.0 0.0 0.0 0.0 0.9 4.7 7.8 6.6 2.5 0.1 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.1 0.0 0.0 0.0 0.0 T000: 2.8 1.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 T032: 26.6 22.5 15.7 3.5 0.1 0.0 0.0 0.0 0.0 3.8 13.4 24.6 ------------------------------------------------------------------------------------------ Annual Values High Temp: 63.1 F Mean Temp: 53.0 F Low Temp: 43.0 F Cooling DD: 1123 Heating DD: 5484 Days above 90 (T090): 22.6 Days above 100 (T100): 0.4 Days below 0 (T000): 5.8 Days below 32 (T032): 110.2 ------------------------------------------------------------------------------------------ Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 1.82 1.81 2.63 3.51 4.24 4.46 3.94 3.24 2.90 3.15 3.21 2.52 Snow: 6.4 5.5 2.5 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.6 5.6 Number of Days P001: 9.1 8.1 10.7 11.3 11.7 10.2 8.6 8.3 7.4 8.5 9.6 9.9 P010: 4.3 4.0 5.9 7.0 7.3 6.7 5.5 5.2 4.7 5.5 6.0 5.4 P100: 0.3 0.2 0.5 0.7 1.1 1.2 1.1 0.7 0.8 0.8 0.7 0.6 S001: 5.4 3.9 1.9 0.3 0.0 0.0 0.0 0.0 0.0 0.1 0.8 4.5 S010: 1.9 1.5 0.6 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.7 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: 37.43 inches Snowfall: 20.9 inches Days precipitation at or above 0 inches (P000): 113.4 Days precipitation at or above 0.10 inches (P010): 67.5 Days Precipitation at or above 1.00 inches (P100): 8.7 Days Snowfall at or above 0.1 inches (S001): 16.9 Days Snowfall at or above 1.0 inches (S010): 6.0 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