Official 1981-2010 Climate Normals
City: ELGIN
State: IL
ID: 112736
Latitude: 42.0628
Longitude: -88.2861
Elevation: 762.9 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 29.8 34.2 45.8 59.1 70.0 80.0 83.7 82.0 75.0 62.6 47.7 33.8
Mean: 21.6 25.6 36.1 48.2 58.8 68.8 73.3 71.5 63.6 51.3 39.0 25.8
Low: 13.4 17.0 26.5 37.4 47.6 57.6 62.9 61.0 52.1 40.1 30.3 17.9
CDD: 0 0 0 7 39 159 262 214 78 8 0 0
HDD: 1345 1103 895 510 231 45 5 12 122 431 780 1213
Number of Days
T090: 0.0 0.0 0.0 0.0 0.4 3.3 4.9 3.3 0.9 0.0 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: 5.3 3.2 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.8
T032: 29.2 25.7 23.0 8.4 0.3 0.0 0.0 0.0 0.2 6.0 17.1 28.1
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Annual Values
High Temp: 58.8 F
Mean Temp: 48.7 F
Low Temp: 38.7 F
Cooling DD: 769
Heating DD: 6694
Days above 90 (T090): 12.7
Days above 100 (T100): 0.1
Days below 0 (T000): 11.5
Days below 32 (T032): 137.9
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 1.86 1.55 2.29 3.69 4.20 3.98 3.80 4.80 3.37 2.91 3.13 2.18
Snow: 9.2 6.4 3.0 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.7 9.2
Number of Days
P001: 8.2 6.5 8.5 11.5 11.7 10.2 9.3 10.2 8.7 9.5 10.5 9.6
P010: 4.2 3.8 5.0 7.4 7.7 6.8 6.2 6.6 6.0 5.8 6.2 5.0
P100: 0.2 0.1 0.3 0.9 1.1 0.8 1.0 1.6 0.8 0.6 0.6 0.3
S001: 6.0 4.1 2.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.8 5.2
S010: 3.3 2.4 1.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.6
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: 37.76 inches
Snowfall: 29.0 inches
Days precipitation at or above 0 inches (P000): 114.4
Days precipitation at or above 0.10 inches (P010): 70.7
Days Precipitation at or above 1.00 inches (P100): 8.3
Days Snowfall at or above 0.1 inches (S001): 18.5
Days Snowfall at or above 1.0 inches (S010): 9.8
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
