Official 1981-2010 Climate Normals City: ELGIN State: IL ID: 112736 Latitude: 42.0628 Longitude: -88.2861 Elevation: 762.9 ft Temperature-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 29.8 34.2 45.8 59.1 70.0 80.0 83.7 82.0 75.0 62.6 47.7 33.8 Mean: 21.6 25.6 36.1 48.2 58.8 68.8 73.3 71.5 63.6 51.3 39.0 25.8 Low: 13.4 17.0 26.5 37.4 47.6 57.6 62.9 61.0 52.1 40.1 30.3 17.9 CDD: 0 0 0 7 39 159 262 214 78 8 0 0 HDD: 1345 1103 895 510 231 45 5 12 122 431 780 1213 Number of Days T090: 0.0 0.0 0.0 0.0 0.4 3.3 4.9 3.3 0.9 0.0 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 T000: 5.3 3.2 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.8 T032: 29.2 25.7 23.0 8.4 0.3 0.0 0.0 0.0 0.2 6.0 17.1 28.1 ------------------------------------------------------------------------------------------ Annual Values High Temp: 58.8 F Mean Temp: 48.7 F Low Temp: 38.7 F Cooling DD: 769 Heating DD: 6694 Days above 90 (T090): 12.7 Days above 100 (T100): 0.1 Days below 0 (T000): 11.5 Days below 32 (T032): 137.9 ------------------------------------------------------------------------------------------ Precipitation-Related Normals Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 1.86 1.55 2.29 3.69 4.20 3.98 3.80 4.80 3.37 2.91 3.13 2.18 Snow: 9.2 6.4 3.0 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.7 9.2 Number of Days P001: 8.2 6.5 8.5 11.5 11.7 10.2 9.3 10.2 8.7 9.5 10.5 9.6 P010: 4.2 3.8 5.0 7.4 7.7 6.8 6.2 6.6 6.0 5.8 6.2 5.0 P100: 0.2 0.1 0.3 0.9 1.1 0.8 1.0 1.6 0.8 0.6 0.6 0.3 S001: 6.0 4.1 2.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.8 5.2 S010: 3.3 2.4 1.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.6 S100: 0.1 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: 37.76 inches Snowfall: 29.0 inches Days precipitation at or above 0 inches (P000): 114.4 Days precipitation at or above 0.10 inches (P010): 70.7 Days Precipitation at or above 1.00 inches (P100): 8.3 Days Snowfall at or above 0.1 inches (S001): 18.5 Days Snowfall at or above 1.0 inches (S010): 9.8 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