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
