Waukegan Climate Normals

Official 1981-2010 Climate Normals

City: WAUKEGAN
State: IL
ID: 119029
Latitude: 42.3492
Longitude: -87.8828
Elevation: 700.0 ft

Temperature-Related Normals

Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 29.9 34.1 44.0 55.9 66.5 77.0 81.4 80.0 73.0 61.0 47.5 34.2
Mean: 22.5 26.5 35.9 46.9 56.8 67.0 72.3 71.3 63.4 51.6 39.8 27.3
Low: 15.1 18.9 27.8 37.8 47.0 57.1 63.2 62.7 53.8 42.3 32.1 20.4
CDD: 0 0 1 9 34 133 237 212 75 7 0 0
HDD: 1317 1078 903 553 290 72 11 15 124 421 756 1168

Number of Days
T090: 0.0 0.0 0.0 0.0 0.6 2.1 4.1 2.9 0.5 0.0 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: 4.9 2.2 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.8
T032: 28.6 24.7 21.2 7.3 0.7 0.0 0.0 0.0 0.0 3.2 14.4 26.2
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Annual Values

High Temp: 57.1 F
Mean Temp: 48.5 F
Low Temp: 39.9 F
Cooling DD: 708
Heating DD: 6708

Days above 90 (T090): 10.2
Days above 100 (T100): 0.3
Days below 0 (T000): 9.2
Days below 32 (T032): 126.3
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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