Official 1981-2010 Climate Normals
City: MT STERLING
State: IL
ID: 115935
Latitude: 39.9842
Longitude: -90.7525
Elevation: 708.8 ft
Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 1.68 1.98 2.59 3.88 4.79 4.38 4.01 3.59 3.40 3.35 3.07 2.39
Snow: 5.6 3.6 1.3 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.5 3.7
Number of Days
P001: 5.1 4.6 6.5 8.9 8.8 8.3 7.4 6.7 6.3 6.9 7.1 5.8
P010: 3.7 3.5 4.7 7.1 7.4 6.5 6.1 5.4 5.3 5.7 5.4 4.5
P100: 0.4 0.4 0.6 1.0 1.4 1.3 1.1 1.1 1.0 0.8 0.7 0.7
S001: 2.3 1.9 0.6 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.2
S010: 2.1 1.6 0.5 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.9
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: 39.11 inches
Snowfall: 14.9 inches
Days precipitation at or above 0 inches (P000): 82.4
Days precipitation at or above 0.10 inches (P010): 65.3
Days Precipitation at or above 1.00 inches (P100): 10.5
Days Snowfall at or above 0.1 inches (S001): 7.4
Days Snowfall at or above 1.0 inches (S010): 6.3
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
