Official 1981-2010 Climate Normals

City: STEELEVILLE  
State: IL
ID: 118248
Latitude: 38.0033
Longitude: -89.6503
Elevation:  430.0 ft



Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    2.54   2.31   3.86   4.37   5.38   4.22   3.50   3.07   3.62   3.74   4.11   3.21
Snow:     2.4    2.6    0.9    0.2    0.0    0.0    0.0    0.0    0.0    0.1    0.2    1.3

Number of Days
P001:     6.7    6.1    9.3   10.6   11.1    9.4    7.3    6.8    6.2    8.2    8.0    7.4
P010:     4.9    4.5    6.9    8.2    7.8    6.9    5.3    5.1    4.8    5.9    6.1    5.6
P100:     0.6    0.5    0.7    1.4    1.5    1.1    1.0    0.6    1.0    1.0    1.4    0.8
S001:     2.0    1.4    0.6    0.1    0.0    0.0    0.0    0.0    0.0    0.2    0.2    1.4
S010:     1.0    0.8    0.2    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.1    0.8
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:   43.93 inches
     Snowfall:     7.7 inches

   Days precipitation at or above 0 inches (P000):    97.1
Days precipitation at or above 0.10 inches (P010):    72.0
Days Precipitation at or above 1.00 inches (P100):    11.6
      Days Snowfall at or above 0.1 inches (S001):     5.9
      Days Snowfall at or above 1.0 inches (S010):     3.0
     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