Official 1981-2010 Climate Normals City: LOAMI 3SSW State: IL ID: 115113 Latitude: 39.6314 Longitude: -89.8744 Elevation: 599.9 ft Temperature-Related Pseudonormals For stations with short records, linear combinations of normals from nearby sites were used to compute so-called pseudonormals. Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High: 34.3 39.4 51.2 64.0 74.3 82.6 85.3 85.0 79.3 67.1 52.8 38.5 Mean: 25.9 30.2 40.9 52.7 63.3 72.2 75.2 73.9 66.6 54.7 42.8 29.8 Low: 17.4 20.9 30.6 41.4 52.2 61.7 65.1 62.8 53.9 42.2 32.7 21.1 CDD: 0 0 1 15 77 229 317 281 117 18 1 0 HDD: 1213 976 748 384 131 14 1 5 69 339 668 1091 Number of Days T090: 0.0 0.0 0.0 0.2 1.0 3.7 5.7 6.6 2.2 0.3 0.0 0.0 T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 0.0 0.0 0.0 0.0 T000: 2.8 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 T032: 27.7 24.6 18.3 4.0 0.2 0.0 0.0 0.0 0.0 4.0 15.1 25.7 ------------------------------------------------------------------------------------------ Annual Values High Temp: 62.9 F Mean Temp: 52.4 F Low Temp: 41.9 F Cooling DD: 1054 Heating DD: 5639 Days above 90 (T090): 19.6 Days above 100 (T100): 0.3 Days below 0 (T000): 5.3 Days below 32 (T032): 119.7 ------------------------------------------------------------------------------------------ Precipitation-Related Pseudonormals For stations with short records, linear combinations of normals from nearby sites were used to compute so-called pseudonormals. Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Prcp: 1.95 1.88 2.75 3.78 4.56 4.74 3.78 3.26 3.37 3.11 3.44 2.55 ------------------------------------------------------------------------------------------ Annual Values Precipitation: 39.17 inches ------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------ 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