Sparta Climate Normals

Official 1981-2010 Climate Normals

City: SPARTA 1 W
State: IL
ID: 118147
Latitude: 38.1167
Longitude: -89.7167
Elevation: 535.0 ft

Temperature-Related Normals

Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High: 39.9 45.0 55.8 66.9 75.7 84.5 88.1 87.4 80.3 69.5 56.0 42.6
Mean: 30.7 35.1 44.5 55.1 64.3 73.4 77.2 75.8 67.8 57.0 45.7 33.8
Low: 21.5 25.1 33.1 43.3 53.0 62.4 66.3 64.2 55.2 44.4 35.4 24.9
CDD: 0 0 3 22 89 264 379 338 147 26 2 0
HDD: 1063 839 640 319 109 11 0 3 64 276 581 969

Number of Days
T090: 0.0 0.0 0.0 0.0 0.6 6.1 11.9 10.3 2.9 0.1 0.0 0.0
T100: 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.8 0.0 0.0 0.0 0.0
T000: 1.3 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8
T032: 26.2 21.3 15.4 4.0 0.0 0.0 0.0 0.0 0.0 3.8 12.2 22.9
------------------------------------------------------------------------------------------
Annual Values

High Temp: 66.1 F
Mean Temp: 55.1 F
Low Temp: 44.2 F
Cooling DD: 1269
Heating DD: 4873

Days above 90 (T090): 31.9
Days above 100 (T100): 1.3
Days below 0 (T000): 2.6
Days below 32 (T032): 105.8
------------------------------------------------------------------------------------------

Precipitation-Related Normals

Normal Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Prcp: 2.65 2.62 4.00 4.19 5.31 4.27 4.13 3.06 3.16 3.82 4.34 3.34
Snow: 4.2 4.1 0.8 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.4 2.9

Number of Days
P001: 7.3 7.3 10.4 10.1 10.7 8.8 8.1 7.1 6.9 7.9 9.0 8.5
P010: 4.7 5.0 7.0 7.1 7.6 6.6 5.8 5.0 4.6 5.6 6.7 5.8
P100: 0.7 0.6 1.2 1.0 1.6 1.3 1.1 0.7 0.9 0.9 1.5 0.7
S001: 2.8 2.5 0.9 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.9
S010: 1.2 1.3 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.0
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
------------------------------------------------------------------------------------------
Annual Values

Precipitation: 44.89 inches
Snowfall: 12.5 inches

Days precipitation at or above 0 inches (P000): 102.1
Days precipitation at or above 0.10 inches (P010): 71.5
Days Precipitation at or above 1.00 inches (P100): 12.2
Days Snowfall at or above 0.1 inches (S001): 8.5
Days Snowfall at or above 1.0 inches (S010): 3.9
Days Snowfall at or above 10.0 inches (S100): 0.0

------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------
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