Official 1981-2010 Climate Normals
City: BENTON 2 N
State: IL
ID: 110608
Latitude: 38.0336
Longitude: -88.9203
Elevation: 444.8 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 40.7 44.9 55.9 67.5 76.4 85.0 88.9 88.5 80.7 68.7 56.6 42.5
Mean: 32.9 36.2 46.0 56.4 65.4 74.3 78.2 77.1 68.8 57.2 47.0 34.5
Low: 25.0 27.4 36.1 45.3 54.4 63.7 67.5 65.6 57.0 45.7 37.5 26.4
CDD: 0 0 4 28 102 287 409 375 166 26 4 0
HDD: 997 808 593 286 90 7 0 1 50 268 543 947
Number of Days
T090: 0.0 0.0 0.0 0.0 1.1 6.9 13.7 13.0 3.6 0.0 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.5 0.6 0.1 0.0 0.0 0.0
T000: 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5
T032: 23.4 19.2 11.1 2.1 0.0 0.0 0.0 0.0 0.0 1.9 9.2 21.9
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Annual Values
High Temp: 66.5 F
Mean Temp: 56.3 F
Low Temp: 46.0 F
Cooling DD: 1402
Heating DD: 4590
Days above 90 (T090): 38.4
Days above 100 (T100): 1.2
Days below 0 (T000): 1.0
Days below 32 (T032): 88.7
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.77 2.86 3.75 4.42 5.34 4.53 3.28 2.84 3.05 3.89 4.43 3.44
Snow: 1.8 1.6 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2
Number of Days
P001: 5.6 6.1 8.2 8.0 8.9 7.2 5.4 5.6 4.7 6.7 6.8 5.9
P010: 4.1 4.4 6.1 6.4 7.2 5.8 4.3 4.4 3.8 5.1 5.7 4.9
P100: 0.7 1.0 1.1 1.3 1.5 1.3 1.1 0.9 1.1 1.2 1.1 0.9
S001: 0.8 0.7 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2
S010: 0.5 0.6 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2
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
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Annual Values
Precipitation: 44.60 inches
Snowfall: 5.2 inches
Days precipitation at or above 0 inches (P000): 79.1
Days precipitation at or above 0.10 inches (P010): 62.2
Days Precipitation at or above 1.00 inches (P100): 13.2
Days Snowfall at or above 0.1 inches (S001): 2.0
Days Snowfall at or above 1.0 inches (S010): 1.6
Days Snowfall at or above 10.0 inches (S100): 0.0
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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
