Official 1981-2010 Climate Normals
City: GRAND TWR 2
State: IL
ID: 113595
Latitude: 37.6592
Longitude: -89.5103
Elevation: 382.8 ft
Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.70 2.93 4.17 4.10 4.97 4.15 3.55 2.94 2.94 3.62 4.37 3.84
Snow: 2.1 2.2 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 1.5
Number of Days
P001: 6.4 6.9 8.6 8.0 8.6 7.3 6.0 5.3 5.6 6.4 7.6 7.2
P010: 4.7 5.1 6.4 6.4 7.2 6.0 5.0 4.3 4.5 5.3 6.1 5.8
P100: 0.6 0.8 1.1 1.3 1.6 1.3 1.0 1.0 0.8 1.0 1.4 0.9
S001: 1.2 1.5 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.8
S010: 0.8 1.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6
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: 44.28 inches
Snowfall: 6.8 inches
Days precipitation at or above 0 inches (P000): 83.9
Days precipitation at or above 0.10 inches (P010): 66.8
Days Precipitation at or above 1.00 inches (P100): 12.8
Days Snowfall at or above 0.1 inches (S001): 3.9
Days Snowfall at or above 1.0 inches (S010): 2.6
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
