Official 1981-2010 Climate Normals
City: DWIGHT
State: IL
ID: 112500
Latitude: 41.1067
Longitude: -88.4111
Elevation: 627.8 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 30.7 35.2 47.7 61.2 72.2 81.3 83.9 82.0 76.5 63.9 49.0 34.4
Mean: 22.5 26.6 37.3 49.3 60.6 69.9 73.1 70.9 63.6 51.8 39.6 26.2
Low: 14.2 17.9 27.0 37.5 49.0 58.5 62.3 59.8 50.8 39.6 30.3 18.1
CDD: 0 0 0 6 57 181 256 196 76 9 0 0
HDD: 1319 1076 857 475 193 35 5 13 117 419 761 1201
Number of Days
T090: 0.0 0.0 0.0 0.0 1.0 4.1 4.8 3.0 1.5 0.1 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0
T000: 4.4 2.5 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.4
T032: 29.2 25.6 22.4 8.3 0.6 0.0 0.0 0.0 0.2 6.1 17.3 28.8
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Annual Values
High Temp: 59.9 F
Mean Temp: 49.4 F
Low Temp: 38.8 F
Cooling DD: 781
Heating DD: 6471
Days above 90 (T090): 14.3
Days above 100 (T100): 0.2
Days below 0 (T000): 9.4
Days below 32 (T032): 138.6
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 1.53 1.60 2.79 3.47 4.44 3.93 4.00 3.50 3.05 2.98 3.28 2.20
Snow: 7.2 3.4 4.1 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.4 6.7
Number of Days
P001: 6.3 5.5 8.2 10.2 10.1 9.0 8.1 7.8 6.8 7.7 7.9 7.7
P010: 4.3 3.5 6.3 7.6 8.1 6.9 6.5 6.0 4.8 5.3 6.2 5.2
P100: 0.4 0.2 0.6 0.7 1.2 1.4 1.2 1.0 0.9 0.8 0.6 0.4
S001: 2.9 2.0 1.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.6
S010: 2.3 1.7 0.9 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.2 2.2
S100: 0.1 0.0 0.2 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: 36.77 inches
Snowfall: 22.5 inches
Days precipitation at or above 0 inches (P000): 95.3
Days precipitation at or above 0.10 inches (P010): 70.7
Days Precipitation at or above 1.00 inches (P100): 9.4
Days Snowfall at or above 0.1 inches (S001): 9.0
Days Snowfall at or above 1.0 inches (S010): 7.5
Days Snowfall at or above 10.0 inches (S100): 0.3
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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
