Clinton Climate Normals

Official 1981-2010 Climate Normals

City: CLINTON 1SSW 
State: IL
ID: 111743
Latitude: 40.1375
Longitude: -88.9675
Elevation:  700.0 ft

Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    2.06   2.17   2.95   3.98   4.51   4.27   4.58   3.60   2.76   3.45   3.68   2.89

Number of Days
P001:     9.0    8.1   10.9   11.9   12.0   10.2    9.5    8.5    7.9    9.9   10.4   10.0
P010:     5.0    4.4    6.4    8.0    7.9    7.4    6.7    5.7    4.6    6.1    6.8    5.7
P100:     0.3    0.4    0.5    0.7    1.2    1.1    1.4    1.1    0.7    1.0    0.9    0.7
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Annual Values

Precipitation:   40.90 inches

   Days precipitation at or above 0 inches (P000):   118.3
Days precipitation at or above 0.10 inches (P010):    74.7
Days Precipitation at or above 1.00 inches (P100):    10.0

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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