Official 1981-2010 Climate Normals
City: AVON 5 NE
State: IL
ID: 110356
Latitude: 40.7086
Longitude: -90.3628
Elevation: 639.9 ft
Temperature-Related Pseudonormals
For stations with short records, linear combinations of normals from nearby sites were used
to compute so-called pseudonormals.
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 31.6 35.9 49.0 62.9 73.1 81.6 84.7 83.6 77.0 64.8 50.1 36.3
Mean: 23.0 27.1 38.2 51.0 61.5 70.9 73.9 72.6 64.7 52.9 40.4 27.9
Low: 14.3 18.3 27.4 39.1 49.9 60.2 63.0 61.5 52.4 40.9 30.7 19.5
CDD: 0 0 0 6 44 188 275 240 64 5 0 0
HDD: 1303 1061 831 426 152 11 1 7 74 381 738 1150
Number of Days
T090: 0.0 0.0 0.0 0.0 0.4 1.0 4.0 1.7 0.0 0.0 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
T000: 4.6 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.7
T032: 28.5 25.6 19.6 6.7 0.0 0.0 0.0 0.0 0.0 4.7 17.5 29.0
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Annual Values
High Temp: 61.0 F
Mean Temp: 50.4 F
Low Temp: 39.9 F
Cooling DD: 822
Heating DD: 6134
Days above 90 (T090): 7.1
Days above 100 (T100): 0.0
Days below 0 (T000): 7.6
Days below 32 (T032): 131.5
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 1.64 1.54 2.61 3.63 4.34 4.20 4.38 3.64 3.52 2.89 2.71 1.98
Snow: 7.1 5.9 2.4 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.7 6.9
Number of Days
P001: 6.2 5.3 7.1 8.9 10.1 8.2 8.4 8.0 6.8 7.2 7.0 6.5
P010: 3.9 3.4 5.3 6.9 7.5 6.6 6.6 5.9 5.4 5.3 5.5 4.4
P100: 0.4 0.3 0.4 0.9 1.3 1.5 1.1 1.1 1.1 0.6 0.6 0.4
S001: 3.6 3.1 1.2 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.5 3.1
S010: 3.0 2.1 1.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.5
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: 37.08 inches
Snowfall: 23.6 inches
Days precipitation at or above 0 inches (P000): 89.7
Days precipitation at or above 0.10 inches (P010): 66.7
Days Precipitation at or above 1.00 inches (P100): 9.7
Days Snowfall at or above 0.1 inches (S001): 11.7
Days Snowfall at or above 1.0 inches (S010): 9.2
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