Official 1981-2010 Climate Normals
City: FREEPORT WASTE WTP
State: IL
ID: 113262
Latitude: 42.2972
Longitude: -89.6039
Elevation: 749.8 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 28.5 33.6 45.6 59.5 70.7 80.2 83.4 81.5 74.4 62.0 46.8 32.3
Mean: 19.8 24.5 35.7 48.2 59.3 69.0 72.7 70.5 62.4 50.3 37.6 24.0
Low: 11.2 15.4 25.9 36.8 47.8 57.8 61.9 59.5 50.3 38.5 28.4 15.8
CDD: 0 0 0 7 41 158 243 188 65 6 0 0
HDD: 1399 1134 907 512 220 38 6 17 145 463 822 1269
Number of Days
T090: 0.0 0.0 0.0 0.0 0.4 2.3 5.1 3.0 0.8 0.1 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0.0
T000: 6.8 3.9 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 3.9
T032: 29.8 26.1 23.9 8.6 0.7 0.0 0.0 0.0 0.4 7.9 20.3 28.5
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Annual Values
High Temp: 58.3 F
Mean Temp: 47.9 F
Low Temp: 37.5 F
Cooling DD: 708
Heating DD: 6933
Days above 90 (T090): 11.7
Days above 100 (T100): 0.2
Days below 0 (T000): 14.9
Days below 32 (T032): 146.4
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 1.37 1.52 2.08 3.30 3.99 4.61 3.94 4.29 3.66 2.88 2.66 1.76
Snow: 9.0 6.5 3.5 0.8 0.0 0.0 0.0 0.0 0.0 0.0 1.8 9.7
Number of Days
P001: 7.7 7.1 8.9 9.9 12.1 11.0 9.8 10.2 9.0 9.1 8.8 9.0
P010: 3.7 4.0 4.6 6.4 7.5 7.5 6.0 5.8 5.6 5.2 5.0 4.7
P100: 0.2 0.2 0.3 0.8 0.9 1.3 1.1 1.3 1.2 0.8 0.5 0.3
S001: 5.8 4.1 2.3 0.5 0.0 0.0 0.0 0.0 0.0 0.0 1.0 5.3
S010: 3.3 2.3 1.1 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.6 3.4
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: 36.06 inches
Snowfall: 31.3 inches
Days precipitation at or above 0 inches (P000): 112.6
Days precipitation at or above 0.10 inches (P010): 66.0
Days Precipitation at or above 1.00 inches (P100): 8.9
Days Snowfall at or above 0.1 inches (S001): 19.0
Days Snowfall at or above 1.0 inches (S010): 11.0
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
