Official 1981-2010 Climate Normals
City: EFFINGHAM SE
State: IL
ID: 112685
Latitude: 39.1064
Longitude: -88.5311
Elevation: 624.8 ft
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: 2.70 2.50 3.47 3.85 5.08 4.23 4.18 3.01 3.08 3.56 4.06 3.14
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Annual Values
Precipitation: 42.86 inches
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City: EFFINGHAM 3SW
State: IL
ID: 093816
Latitude: 39.1186
Longitude: -88.6242
Elevation: 624.8 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 36.2 41.2 52.3 64.5 74.2 83.7 87.1 86.2 79.5 67.1 53.6 39.9
Mean: 28.0 32.1 42.2 53.4 63.4 72.9 76.4 74.9 67.2 55.3 43.9 31.6
Low: 19.7 23.0 32.1 42.2 52.6 62.2 65.7 63.5 54.9 43.6 34.2 23.3
CDD: 0 0 2 16 79 253 354 309 137 21 1 0
HDD: 1148 921 709 366 128 15 1 4 71 320 634 1035
Number of Days
T090: 0.0 0.0 0.0 0.0 0.5 5.4 9.3 9.1 3.2 0.2 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.3 0.5 0.0 0.0 0.0 0.0
T000: 2.1 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.3
T032: 25.9 22.1 16.9 3.9 0.2 0.0 0.0 0.0 0.0 3.4 13.3 24.3
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Annual Values
High Temp: 63.9 F
Mean Temp: 53.5 F
Low Temp: 43.2 F
Cooling DD: 1173
Heating DD: 5352
Days above 90 (T090): 27.7
Days above 100 (T100): 0.9
Days below 0 (T000): 4.3
Days below 32 (T032): 110.0
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.89 2.72 3.27 4.01 5.27 4.46 4.43 2.75 2.99 3.59 4.13 3.22
Snow: 4.5 5.3 1.7 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.4 3.2
Number of Days
P001: 8.8 8.5 10.4 11.4 11.6 10.3 9.4 7.6 7.1 8.9 10.0 10.1
P010: 5.0 5.3 6.5 7.5 8.7 7.1 6.7 5.1 4.7 5.6 7.1 6.0
P100: 0.5 0.7 0.6 0.9 1.4 1.1 1.3 0.6 0.8 1.1 1.2 1.0
S001: 3.7 3.1 1.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.3 2.5
S010: 2.1 1.7 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.6
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: 43.73 inches
Snowfall: 15.2 inches
Days precipitation at or above 0 inches (P000): 114.1
Days precipitation at or above 0.10 inches (P010): 75.3
Days Precipitation at or above 1.00 inches (P100): 11.2
Days Snowfall at or above 0.1 inches (S001): 10.7
Days Snowfall at or above 1.0 inches (S010): 6.3
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
