Official 1981-2010 Climate Normals
City: LAWRENCEVILLE
State: IL
ID: 114957
Latitude: 38.7267
Longitude: -87.6900
Elevation: 441.8 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 38.5 43.4 54.0 65.9 75.8 85.0 88.3 86.8 80.7 68.6 55.6 41.9
Mean: 30.5 34.4 43.9 54.7 64.8 74.0 77.3 75.7 68.6 56.8 45.8 33.8
Low: 22.5 25.4 33.7 43.5 53.7 63.1 66.3 64.7 56.4 44.9 36.0 25.7
CDD: 0 0 2 16 97 281 381 335 158 26 2 0
HDD: 1069 857 657 325 104 9 0 2 52 282 578 967
Number of Days
T090: 0.0 0.0 0.0 0.0 1.1 7.2 11.9 9.6 3.4 0.1 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.0 0.0 0.0 0.0
T000: 1.4 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3
T032: 24.0 20.6 14.3 2.5 0.0 0.0 0.0 0.0 0.0 2.2 10.8 22.6
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Annual Values
High Temp: 65.5 F
Mean Temp: 55.1 F
Low Temp: 44.8 F
Cooling DD: 1297
Heating DD: 4902
Days above 90 (T090): 33.2
Days above 100 (T100): 0.5
Days below 0 (T000): 2.1
Days below 32 (T032): 97.0
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.83 2.59 3.73 4.09 5.80 4.21 4.31 2.96 3.37 3.87 4.22 3.53
Snow: 4.3 4.5 1.7 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.3 4.7
Number of Days
P001: 9.3 8.8 9.8 10.4 11.3 10.1 8.4 7.2 7.0 7.8 9.3 10.1
P010: 5.2 4.7 6.3 7.2 8.5 6.5 6.0 4.7 4.8 5.3 6.3 6.2
P100: 0.5 0.7 0.8 1.0 1.9 1.3 1.4 1.0 1.0 1.2 1.4 0.7
S001: 4.5 3.6 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 2.9
S010: 1.9 1.4 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.4
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: 45.51 inches
Snowfall: 15.7 inches
Days precipitation at or above 0 inches (P000): 109.5
Days precipitation at or above 0.10 inches (P010): 71.7
Days Precipitation at or above 1.00 inches (P100): 12.9
Days Snowfall at or above 0.1 inches (S001): 12.8
Days Snowfall at or above 1.0 inches (S010): 5.3
Days Snowfall at or above 10.0 inches (S100): 0.0
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City: LAWRENCEVILLE INTERNATIONAL AIRPORT
State: IL
ID: 013809
Latitude: 38.7642
Longitude: -87.6056
Elevation: 429.0 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 39.2 44.2 55.3 66.7 76.6 85.2 88.3 87.5 81.9 69.5 55.8 42.3
Mean: 31.1 35.5 45.0 56.0 66.0 74.5 77.8 76.4 69.5 57.7 46.3 34.6
Low: 22.9 26.9 34.7 45.3 55.4 63.7 67.4 65.4 57.0 45.9 36.9 27.0
CDD: 0 0 2 24 113 290 398 356 171 32 1 0
HDD: 1052 824 622 294 82 7 0 1 38 258 561 941
Number of Days
T090: 0.0 0.0 0.0 0.0 2.0 8.6 12.4 10.1 3.7 0.3 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 0.0 0.0 0.0 0.0
T000: 1.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7
T032: 23.8 20.5 12.4 2.1 0.0 0.0 0.0 0.0 0.0 1.4 9.4 20.2
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Annual Values
High Temp: 66.1 F
Mean Temp: 56.0 F
Low Temp: 45.8 F
Cooling DD: 1387
Heating DD: 4680
Days above 90 (T090): 37.1
Days above 100 (T100): 0.4
Days below 0 (T000): 2.2
Days below 32 (T032): 89.8
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Precipitation-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
Prcp: 2.38 2.01 3.43 4.16 5.58 3.98 4.42 3.39 3.19 3.98 3.97 3.39
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Annual Values
Precipitation: 43.88 inches
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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
