Official 1981-2010 Climate Normals City: LINCOLN State: IL ID: 115079 Latitude: 40.1514 Longitude: -89.3381 Elevation: 582.9 ft Temperature-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 33.8 38.8 51.1 63.9 74.3 83.1 85.5 84.0 78.3 65.6 51.2 37.3 Mean: 25.9 30.4 41.1 52.4 63.0 72.1 75.0 73.0 65.9 53.8 42.1 29.5 Low: 18.0 22.0 31.2 40.9 51.8 61.2 64.5 62.0 53.6 42.0 33.0 21.8 CDD: 0 0 2 13 76 232 311 255 114 14 0 0 HDD: 1212 969 741 391 136 17 2 7 86 361 687 1099 Number of Days T090: 0.0 0.0 0.0 0.0 0.7 4.9 7.1 5.5 2.1 0.0 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.2 0.0 0.0 0.0 0.0 T000: 3.0 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 T032: 26.7 22.5 16.8 4.7 0.2 0.0 0.0 0.0 0.1 4.7 14.5 25.4 ------------------------------------------------------------------------------------------ Annual Values High Temp: 62.3 F Mean Temp: 52.1 F Low Temp: 41.9 F Cooling DD: 1017 Heating DD: 5708 Days above 90 (T090): 20.3 Days above 100 (T100): 0.4 Days below 0 (T000): 5.7 Days below 32 (T032): 115.8 ------------------------------------------------------------------------------------------ Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 1.93 1.82 2.60 3.61 4.16 4.32 5.06 3.92 3.21 3.08 3.25 2.64 Snow: 5.9 5.8 1.7 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.6 6.2 Number of Days P001: 8.1 7.9 10.3 11.6 11.7 9.3 9.2 8.6 7.8 9.3 10.1 9.9 P010: 4.2 4.2 6.4 7.0 7.7 6.2 6.2 5.8 5.1 6.3 6.3 5.8 P100: 0.3 0.3 0.3 0.7 1.1 1.1 1.4 1.1 0.6 0.7 0.9 0.5 S001: 4.6 3.7 1.5 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.5 4.2 S010: 2.0 1.7 0.7 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.2 2.1 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: 39.60 inches Snowfall: 20.5 inches Days precipitation at or above 0 inches (P000): 113.8 Days precipitation at or above 0.10 inches (P010): 71.2 Days Precipitation at or above 1.00 inches (P100): 9.0 Days Snowfall at or above 0.1 inches (S001): 14.8 Days Snowfall at or above 1.0 inches (S010): 6.8 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