Official 1981-2010 Climate Normals
City: BOURBONNAIS 3NW
State: IL
ID: 110803
Latitude: 41.1750
Longitude: -87.9350
Elevation: 649.8 ft
Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 1.93 1.71 2.76 3.65 4.38 3.95 3.94 3.20 2.98 3.01 3.28 2.54
Snow: 8.9 5.1 3.2 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.9 7.3
Number of Days
P001: 10.7 9.2 10.6 12.1 12.4 11.8 10.3 10.2 8.3 9.3 10.8 10.9
P010: 5.3 4.0 5.9 7.5 8.1 7.5 6.8 5.8 5.3 6.1 5.5 5.5
P100: 0.5 0.3 0.4 1.1 1.2 1.1 1.2 0.9 0.8 0.8 0.5 0.3
S001: 6.9 4.9 2.8 0.4 0.0 0.0 0.0 0.0 0.0 0.1 1.3 6.3
S010: 3.1 1.5 1.0 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.1
S100: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1
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Annual Values
Precipitation: 37.33 inches
Snowfall: 26.6 inches
Days precipitation at or above 0 inches (P000): 126.6
Days precipitation at or above 0.10 inches (P010): 73.3
Days Precipitation at or above 1.00 inches (P100): 9.1
Days Snowfall at or above 0.1 inches (S001): 22.7
Days Snowfall at or above 1.0 inches (S010): 8.3
Days Snowfall at or above 10.0 inches (S100): 0.1
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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
