Official 1981-2010 Climate Normals
City: MCLEANSBORO
State: IL
ID: 115515
Latitude: 38.0844
Longitude: -88.5425
Elevation: 445.8 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 40.0 45.2 55.7 66.4 76.0 85.0 88.6 88.3 81.7 69.8 56.7 43.4
Mean: 30.7 35.2 44.7 55.1 64.7 73.7 77.0 75.7 68.4 56.9 45.8 33.8
Low: 21.5 25.2 33.7 43.9 53.5 62.5 65.5 63.1 55.0 44.1 34.8 24.3
CDD: 0 0 3 21 92 272 374 334 155 27 2 0
HDD: 1062 834 633 316 100 9 1 2 54 276 580 965
Number of Days
T090: 0.0 0.0 0.0 0.0 1.0 6.8 12.6 12.5 4.6 0.2 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.4 0.5 0.1 0.0 0.0 0.0
T000: 1.5 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.9
T032: 26.1 20.2 14.6 2.8 0.0 0.0 0.0 0.0 0.0 3.0 12.0 23.1
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Annual Values
High Temp: 66.5 F
Mean Temp: 55.3 F
Low Temp: 44.0 F
Cooling DD: 1280
Heating DD: 4833
Days above 90 (T090): 37.7
Days above 100 (T100): 1.0
Days below 0 (T000): 2.9
Days below 32 (T032): 101.7
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 3.06 2.89 4.50 4.40 5.38 4.01 3.59 3.02 3.10 3.61 4.39 3.93
Snow: 3.9 4.1 1.8 0.2 0.0 0.0 0.0 0.0 0.0 0.3 0.1 3.7
Number of Days
P001: 9.4 9.3 12.1 12.2 12.1 10.2 8.5 8.2 7.9 9.4 11.0 11.2
P010: 5.4 6.0 7.5 8.0 8.1 6.3 5.4 5.2 5.1 5.7 6.9 7.0
P100: 0.7 0.5 0.9 0.9 1.2 1.0 1.0 0.7 0.9 0.7 1.0 1.0
S001: 3.1 2.1 1.3 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.1 2.3
S010: 1.3 1.3 0.6 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.0 1.1
S100: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
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Annual Values
Precipitation: 45.88 inches
Snowfall: 14.1 inches
Days precipitation at or above 0 inches (P000): 121.5
Days precipitation at or above 0.10 inches (P010): 76.6
Days Precipitation at or above 1.00 inches (P100): 10.5
Days Snowfall at or above 0.1 inches (S001): 9.1
Days Snowfall at or above 1.0 inches (S010): 4.5
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
