Official 1981-2010 Climate Normals

City: COMPTON 1 NW
State: IL
ID: 111835
Latitude: 41.7061
Longitude: -89.1003
Elevation:  904.6 ft

Temperature-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
High:    28.5   33.7   46.0   59.7   71.2   79.6   83.1   81.3   74.3   62.5   47.0   32.4
Mean:    20.5   25.0   36.2   48.4   59.5   68.6   72.2   70.3   62.6   50.7   38.3   24.6
 Low:    12.4   16.4   26.4   37.1   47.9   57.5   61.4   59.4   50.9   38.9   29.6   16.8
 CDD:       0      0      0      7     45    152    232    182     65      5      0      0
 HDD:    1381   1118    893    505    214     46      7     16    137    449    801   1252

Number of Days
T090:     0.0    0.0    0.0    0.1    0.5    2.5    3.8    2.2    0.3    0.0    0.0    0.0
T100:     0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0
T000:     5.9    2.8    0.5    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    2.9
T032:    29.8   26.2   22.8    8.4    1.1    0.0    0.0    0.0    0.3    7.2   17.4   29.5
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Annual Values

 High Temp:    58.4 F
 Mean Temp:    48.2 F
  Low Temp:    38.0 F
Cooling DD:     689
Heating DD:    6820

Days above  90 (T090):     9.3
Days above 100 (T100):     0.0
Days below   0 (T000):    12.1
Days below  32 (T032):   142.9
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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