Official 1981-2010 Climate Normals

City: PEOTONE  
State: IL
ID: 116725
Latitude: 41.3269
Longitude: -87.7858
Elevation:  720.0 ft



Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    1.81   1.75   2.42   3.77   4.67   4.54   4.45   4.33   3.70   3.63   3.91   2.48
Snow:     7.8    7.4    4.0    0.9    0.0    0.0    0.0    0.0    0.0    0.2    1.0    5.6

Number of Days
P001:     7.5    6.9    8.6    9.9    9.6    9.1    8.0    8.1    7.2    8.5    9.3    8.8
P010:     4.3    3.8    6.0    7.0    7.5    7.3    6.3    6.2    5.5    6.5    6.8    5.4
P100:     0.3    0.3    0.3    1.0    1.3    1.5    1.3    1.3    1.0    0.9    1.0    0.4
S001:     4.3    3.8    1.8    0.4    0.0    0.0    0.0    0.0    0.0    0.1    0.8    3.5
S010:     2.8    2.6    1.3    0.3    0.0    0.0    0.0    0.0    0.0    0.1    0.4    2.4
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:   41.46 inches
     Snowfall:    26.9 inches

   Days precipitation at or above 0 inches (P000):   101.5
Days precipitation at or above 0.10 inches (P010):    72.6
Days Precipitation at or above 1.00 inches (P100):    10.6
      Days Snowfall at or above 0.1 inches (S001):    14.7
      Days Snowfall at or above 1.0 inches (S010):     9.9
     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