Official 1981-2010 Climate Normals
City: CASEY
State: IL
ID: 111329
Latitude: 39.2975
Longitude: -87.9747
Elevation: 619.9 ft
Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.78 2.51 3.22 4.37 4.63 4.42 4.15 3.46 2.92 3.71 4.01 3.22
Snow: 4.9 2.1 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 4.3
Number of Days
P001: 8.1 7.6 9.2 11.2 11.9 10.2 8.4 7.2 6.7 8.4 8.5 9.2
P010: 5.2 4.7 6.4 7.6 8.5 7.3 6.2 5.2 4.5 5.4 6.3 6.4
P100: 0.7 0.7 0.6 1.1 1.3 1.3 1.3 1.1 0.8 1.0 0.8 0.8
S001: 3.3 1.7 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 2.2
S010: 2.4 1.2 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.4
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
------------------------------------------------------------------------------------------
Annual Values
Precipitation: 43.40 inches
Snowfall: 12.9 inches
Days precipitation at or above 0 inches (P000): 106.6
Days precipitation at or above 0.10 inches (P010): 73.7
Days Precipitation at or above 1.00 inches (P100): 11.5
Days Snowfall at or above 0.1 inches (S001): 8.1
Days Snowfall at or above 1.0 inches (S010): 5.8
Days Snowfall at or above 10.0 inches (S100): 0.0
------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------
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
