Congerville Climate Normals

Official 1981-2010 Climate Normals

City: CONGERVILLE 2NW 
State: IL
ID: 111836
Latitude: 40.6211
Longitude: -89.2414
Elevation:  634.7 ft

Temperature-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
High:    32.8   38.2   50.5   63.6   73.6   82.7   85.8   84.2   79.0   66.7   51.3   37.0
Mean:    23.7   28.7   39.5   51.6   61.5   70.8   74.3   72.1   65.2   53.6   41.5   27.6
 Low:    14.6   19.3   28.6   39.6   49.5   58.9   62.9   60.1   51.4   40.5   31.6   18.3
 CDD:       0      0      1     13     64    199    292    230     96     18      0      0
 HDD:    1280   1015    790    415    171     26      2      9     90    371    707   1157

Number of Days
T090:     0.0    0.0    0.0    0.0    1.3    5.0    7.0    4.3    2.2    0.3    0.0    0.0
T100:     0.0    0.0    0.0    0.0    0.0    0.0    0.1    0.0    0.0    0.0    0.0    0.0
T000:     4.6    1.5    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    2.1
T032:    28.8   25.1   21.1    6.8    0.6    0.0    0.0    0.0    0.1    6.4   16.3   27.2
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Annual Values

 High Temp:    62.2 F
 Mean Temp:    51.0 F
  Low Temp:    39.7 F
Cooling DD:     913
Heating DD:    6033

Days above  90 (T090):    20.3
Days above 100 (T100):     0.1
Days below   0 (T000):     8.2
Days below  32 (T032):   132.6
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Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    1.87   1.71   2.46   3.49   4.65   3.93   3.98   4.07   3.19   3.08   3.24   2.17
Snow:     7.3    4.2    2.7    0.6    0.0    0.0    0.0    0.0    0.0    0.0    1.1    5.8

Number of Days
P001:     8.3    6.7    8.9   11.0   11.3   10.6    8.9    8.7    6.6    9.2    8.3    8.1
P010:     4.6    3.9    5.5    6.8    8.1    6.8    6.5    6.2    4.8    6.2    5.8    4.8
P100:     0.6    0.4    0.4    0.7    1.2    0.9    1.1    1.2    0.7    0.5    0.5    0.3
S001:     4.7    3.5    1.4    0.2    0.0    0.0    0.0    0.0    0.0    0.0    0.6    3.4
S010:     2.3    1.5    0.9    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.3    1.9
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:   37.84 inches
     Snowfall:    21.7 inches

   Days precipitation at or above 0 inches (P000):   106.6
Days precipitation at or above 0.10 inches (P010):    70.0
Days Precipitation at or above 1.00 inches (P100):     8.5
      Days Snowfall at or above 0.1 inches (S001):    13.8
      Days Snowfall at or above 1.0 inches (S010):     7.0
     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