Official 1981-2010 Climate Normals
City: NEWTON
State: IL
ID: 116157
Latitude: 38.9917
Longitude: -88.1828
Elevation: 549.7 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 37.9 42.4 53.7 65.2 75.1 84.4 87.9 86.6 80.4 68.3 54.7 41.2
Mean: 29.3 33.8 43.4 54.6 63.9 73.7 77.0 75.2 68.0 56.3 44.7 33.0
Low: 20.7 25.2 33.2 43.9 52.8 63.0 66.1 63.9 55.6 44.3 34.6 24.7
CDD: 0 0 2 16 85 271 372 320 143 25 1 0
HDD: 1106 873 670 330 117 10 0 3 53 294 612 993
Number of Days
T090: 0.0 0.0 0.0 0.0 0.9 6.1 11.2 8.8 2.9 0.3 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.1 0.4 0.3 0.1 0.0 0.0 0.0
T000: 2.0 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5
T032: 25.3 21.0 14.5 3.2 0.2 0.0 0.0 0.0 0.1 3.4 12.5 23.8
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Annual Values
High Temp: 64.9 F
Mean Temp: 54.5 F
Low Temp: 44.1 F
Cooling DD: 1235
Heating DD: 5062
Days above 90 (T090): 30.1
Days above 100 (T100): 0.8
Days below 0 (T000): 2.9
Days below 32 (T032): 104.0
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.99 2.51 3.81 4.15 5.12 4.51 3.83 2.90 3.08 3.58 4.08 3.56
Snow: 6.4 2.9 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 4.4
Number of Days
P001: 9.8 8.5 10.0 9.9 11.9 10.6 8.0 7.3 6.5 7.7 8.1 9.8
P010: 5.9 4.9 7.1 7.3 9.0 8.0 6.1 4.8 3.9 5.2 6.1 5.8
P100: 0.8 0.7 1.0 1.1 1.6 1.5 1.0 0.8 0.7 1.1 1.1 0.6
S001: 4.4 3.1 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 3.2
S010: 2.4 1.3 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.7
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: 44.12 inches
Snowfall: 16.1 inches
Days precipitation at or above 0 inches (P000): 108.1
Days precipitation at or above 0.10 inches (P010): 74.1
Days Precipitation at or above 1.00 inches (P100): 12.0
Days Snowfall at or above 0.1 inches (S001): 11.9
Days Snowfall at or above 1.0 inches (S010): 5.9
Days Snowfall at or above 10.0 inches (S100): 0.0
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Official 1981-2010 Climate Normals
City: NEWTON 6 SSE
State: IL
ID: 116159
Latitude: 38.9136
Longitude: -88.1183
Elevation: 509.7 ft
Temperature-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 34.6 39.7 50.6 62.7 71.8 81.0 84.4 83.2 77.5 66.0 52.2 38.3
Mean: 27.2 31.1 41.3 52.4 61.7 71.2 74.6 72.6 65.7 54.3 43.0 30.6
Low: 19.8 22.6 32.0 42.0 51.7 61.5 64.7 62.0 53.9 42.6 33.7 22.8
CDD: 0 0 1 11 55 209 298 242 106 14 1 0
HDD: 1172 948 736 390 156 22 2 6 85 346 662 1068
Number of Days
T090: 0.0 0.0 0.0 0.0 0.2 2.7 4.8 4.1 1.5 0.0 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0
T000: 2.1 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.7
T032: 27.0 23.1 16.2 4.2 0.1 0.0 0.0 0.0 0.0 4.1 13.6 24.6
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Annual Values
High Temp: 61.9 F
Mean Temp: 52.2 F
Low Temp: 42.5 F
Cooling DD: 937
Heating DD: 5593
Days above 90 (T090): 13.2
Days above 100 (T100): 0.2
Days below 0 (T000): 4.8
Days below 32 (T032): 112.9
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Precipitation-Related Normals
Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.55 2.40 3.54 3.95 5.15 3.90 4.46 2.95 3.22 3.36 4.02 3.06
Snow: 4.1 2.7 2.0 0.1 0.0 0.0 0.0 0.0 0.0 0.2 0.6 3.0
Number of Days
P001: 7.8 7.4 9.9 10.7 11.1 9.9 8.0 7.7 7.1 8.1 9.5 9.2
P010: 4.7 4.9 6.6 7.7 8.0 6.7 6.1 5.1 4.9 5.4 6.4 5.8
P100: 0.4 0.4 0.8 0.9 1.4 1.0 1.2 0.8 1.0 0.9 1.0 0.7
S001: 2.8 1.8 0.8 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.3 2.4
S010: 1.8 1.1 0.5 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.3 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: 42.56 inches
Snowfall: 12.7 inches
Days precipitation at or above 0 inches (P000): 106.4
Days precipitation at or above 0.10 inches (P010): 72.3
Days Precipitation at or above 1.00 inches (P100): 10.5
Days Snowfall at or above 0.1 inches (S001): 8.3
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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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
