Galesburg Climate Normals

Official 1981-2010 Climate Normals

City: GALESBURG  
State: IL
ID: 113320
Latitude: 40.9464
Longitude: -90.3856
Elevation:  770.8 ft

Temperature-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
High:    30.3   35.0   47.9   61.5   71.7   80.8   84.0   82.2   75.4   62.9   48.3   33.9
Mean:    21.9   26.1   38.0   50.9   61.4   71.1   74.6   72.7   64.7   52.5   39.1   26.0
 Low:    13.5   17.2   28.0   40.3   51.0   61.3   65.1   63.2   54.0   42.1   29.9   18.1
 CDD:       0      0      0     11     57    204    298    247     96     11      0      0
 HDD:    1336   1089    839    434    170     22      2      8    105    398    777   1209

Number of Days
T090:     0.0    0.0    0.0    0.0    0.3    2.4    5.5    3.7    1.0    0.1    0.0    0.0
T100:     0.0    0.0    0.0    0.0    0.0    0.0    0.1    0.2    0.0    0.0    0.0    0.0
T000:     5.3    3.1    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    2.8
T032:    29.3   25.6   21.2    5.9    0.2    0.0    0.0    0.0    0.2    4.4   17.9   27.9
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Annual Values

 High Temp:    59.6 F
 Mean Temp:    50.0 F
  Low Temp:    40.4 F
Cooling DD:     924
Heating DD:    6390

Days above  90 (T090):    13.0
Days above 100 (T100):     0.3
Days below   0 (T000):    11.4
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:    1.51   1.63   2.76   3.72   4.45   4.30   4.38   3.97   3.47   2.75   2.87   2.27
Snow:     7.8    5.9    2.0    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.8    5.9

Number of Days
P001:     7.8    7.0    9.3   11.0   11.3    9.4    8.9    9.3    7.8    9.1    8.8    9.0
P010:     3.9    3.8    6.1    6.9    8.0    6.8    6.5    6.6    5.4    5.5    5.7    5.0
P100:     0.3    0.3    0.5    0.9    1.1    1.2    1.4    1.2    1.0    0.6    0.8    0.4
S001:     4.9    3.5    1.3    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.7    3.8
S010:     2.8    1.6    0.8    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.3    2.2
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:   38.08 inches
     Snowfall:    22.5 inches

   Days precipitation at or above 0 inches (P000):   108.7
Days precipitation at or above 0.10 inches (P010):    70.2
Days Precipitation at or above 1.00 inches (P100):     9.7
      Days Snowfall at or above 0.1 inches (S001):    14.3
      Days Snowfall at or above 1.0 inches (S010):     7.8
     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