Official 1981-2010 Climate Normals
City: DANVILLE
State: IL
ID: 112140
Latitude: 40.1392
Longitude: -87.6481
Elevation: 557.9 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 35.1 40.0 51.9 64.8 74.7 83.3 85.4 83.8 78.3 66.1 52.2 38.3
Mean: 27.1 31.4 42.0 53.5 63.1 72.1 75.1 73.5 66.7 55.0 43.4 30.8
Low: 19.2 22.9 32.0 42.1 51.5 60.9 64.7 63.1 55.1 43.8 34.5 23.3
CDD: 0 0 2 16 74 229 312 267 123 18 1 0
HDD: 1173 939 716 363 133 16 1 5 72 329 650 1060
Number of Days
T090: 0.0 0.0 0.0 0.0 0.7 4.1 5.8 3.9 1.3 0.0 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.0 0.0 0.0 0.0
T000: 2.9 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3
T032: 26.1 21.9 16.2 4.8 0.2 0.0 0.0 0.0 0.0 3.3 13.3 23.7
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Annual Values
High Temp: 62.9 F
Mean Temp: 52.9 F
Low Temp: 42.8 F
Cooling DD: 1041
Heating DD: 5458
Days above 90 (T090): 15.9
Days above 100 (T100): 0.2
Days below 0 (T000): 5.5
Days below 32 (T032): 109.6
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.21 2.21 3.02 3.98 4.74 4.55 4.67 3.48 2.93 3.57 3.83 2.83
Snow: 4.8 4.9 2.7 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 5.2
Number of Days
P001: 9.8 8.3 10.6 12.0 12.4 10.9 9.9 9.0 8.2 9.2 10.3 11.2
P010: 4.9 4.8 6.4 8.0 8.5 7.4 7.4 5.7 4.9 6.3 6.9 6.6
P100: 0.5 0.5 0.6 0.7 1.2 1.3 1.4 1.0 0.8 0.9 1.1 0.4
S001: 3.6 2.4 1.1 0.2 0.0 0.0 0.0 0.0 0.0 0.1 0.4 3.0
S010: 1.6 1.6 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 1.8
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: 42.02 inches
Snowfall: 17.9 inches
Days precipitation at or above 0 inches (P000): 121.8
Days precipitation at or above 0.10 inches (P010): 77.8
Days Precipitation at or above 1.00 inches (P100): 10.4
Days Snowfall at or above 0.1 inches (S001): 10.8
Days Snowfall at or above 1.0 inches (S010): 5.8
Days Snowfall at or above 10.0 inches (S100): 0.0
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City: DANVILLE SEWAGE PLT
State: IL
ID: 112145
Latitude: 40.1017
Longitude: -87.5967
Elevation: 526.8 ft
Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.25 2.07 2.96 3.91 4.85 4.34 4.86 3.30 2.80 3.54 3.68 2.92
Snow: 6.4 4.4 2.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 4.1
Number of Days
P001: 7.9 7.8 9.8 11.2 12.0 10.3 9.8 8.5 7.7 9.0 9.6 9.8
P010: 5.0 4.4 6.2 7.8 8.2 7.1 7.2 5.5 4.9 5.8 6.6 6.4
P100: 0.4 0.5 0.4 0.6 1.2 1.2 1.5 0.8 0.7 1.1 0.9 0.5
S001: 3.1 2.7 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.7
S010: 2.0 1.6 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.9
S100: 0.1 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: 41.48 inches
Snowfall: 17.6 inches
Days precipitation at or above 0 inches (P000): 113.4
Days precipitation at or above 0.10 inches (P010): 75.1
Days Precipitation at or above 1.00 inches (P100): 9.8
Days Snowfall at or above 0.1 inches (S001): 9.8
Days Snowfall at or above 1.0 inches (S010): 6.4
Days Snowfall at or above 10.0 inches (S100): 0.1
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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
