Official 1981-2010 Climate Normals
City: CHANNAHON DRESDEN IS
State: IL
ID: 111420
Latitude: 41.3978
Longitude: -88.2819
Elevation: 504.8 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 30.9 35.9 47.4 60.6 71.6 80.5 84.4 82.5 76.2 64.2 49.8 35.1
Mean: 23.2 27.5 37.9 49.6 60.2 69.6 73.7 72.2 65.0 53.2 41.2 27.5
Low: 15.6 19.0 28.3 38.7 48.9 58.7 63.1 61.9 53.8 42.3 32.6 19.9
CDD: 0 0 0 5 47 171 274 230 92 14 0 0
HDD: 1294 1051 842 466 194 33 3 7 92 379 714 1162
Number of Days
T090: 0.0 0.0 0.0 0.0 0.8 3.1 4.9 3.4 1.2 0.1 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0
T000: 3.6 1.8 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2
T032: 28.9 25.3 21.6 7.3 0.2 0.0 0.0 0.0 0.0 3.5 14.4 26.7
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Annual Values
High Temp: 60.0 F
Mean Temp: 50.2 F
Low Temp: 40.3 F
Cooling DD: 833
Heating DD: 6236
Days above 90 (T090): 13.5
Days above 100 (T100): 0.1
Days below 0 (T000): 6.8
Days below 32 (T032): 128.0
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 1.81 1.59 2.37 3.45 4.03 4.17 4.17 3.70 3.04 2.86 3.06 2.25
Snow: 5.5 7.2 0.3 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.2 6.1
Number of Days
P001: 11.4 9.7 10.8 11.4 11.2 10.1 9.0 8.5 8.3 9.2 10.3 12.0
P010: 4.9 3.8 5.7 6.8 7.5 6.7 6.3 5.6 5.0 5.5 5.9 5.0
P100: 0.3 0.2 0.4 0.7 1.0 1.1 1.1 1.0 0.9 0.6 0.8 0.3
S001: 3.7 2.7 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 3.2
S010: 2.0 1.8 0.2 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
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Annual Values
Precipitation: 36.50 inches
Snowfall: 19.8 inches
Days precipitation at or above 0 inches (P000): 121.9
Days precipitation at or above 0.10 inches (P010): 68.7
Days Precipitation at or above 1.00 inches (P100): 8.4
Days Snowfall at or above 0.1 inches (S001): 10.2
Days Snowfall at or above 1.0 inches (S010): 6.1
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
