Freeport Climate Normals

Official 1981-2010 Climate Normals

City: FREEPORT WASTE WTP
State: IL
ID: 113262
Latitude: 42.2972
Longitude: -89.6039
Elevation:  749.8 ft

Temperature-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
High:    28.5   33.6   45.6   59.5   70.7   80.2   83.4   81.5   74.4   62.0   46.8   32.3
Mean:    19.8   24.5   35.7   48.2   59.3   69.0   72.7   70.5   62.4   50.3   37.6   24.0
 Low:    11.2   15.4   25.9   36.8   47.8   57.8   61.9   59.5   50.3   38.5   28.4   15.8
 CDD:       0      0      0      7     41    158    243    188     65      6      0      0
 HDD:    1399   1134    907    512    220     38      6     17    145    463    822   1269

Number of Days
T090:     0.0    0.0    0.0    0.0    0.4    2.3    5.1    3.0    0.8    0.1    0.0    0.0
T100:     0.0    0.0    0.0    0.0    0.0    0.0    0.1    0.1    0.0    0.0    0.0    0.0
T000:     6.8    3.9    0.2    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.1    3.9
T032:    29.8   26.1   23.9    8.6    0.7    0.0    0.0    0.0    0.4    7.9   20.3   28.5
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Annual Values

 High Temp:    58.3 F
 Mean Temp:    47.9 F
  Low Temp:    37.5 F
Cooling DD:     708
Heating DD:    6933

Days above  90 (T090):    11.7
Days above 100 (T100):     0.2
Days below   0 (T000):    14.9
Days below  32 (T032):   146.4
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Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    1.37   1.52   2.08   3.30   3.99   4.61   3.94   4.29   3.66   2.88   2.66   1.76
Snow:     9.0    6.5    3.5    0.8    0.0    0.0    0.0    0.0    0.0    0.0    1.8    9.7

Number of Days
P001:     7.7    7.1    8.9    9.9   12.1   11.0    9.8   10.2    9.0    9.1    8.8    9.0
P010:     3.7    4.0    4.6    6.4    7.5    7.5    6.0    5.8    5.6    5.2    5.0    4.7
P100:     0.2    0.2    0.3    0.8    0.9    1.3    1.1    1.3    1.2    0.8    0.5    0.3
S001:     5.8    4.1    2.3    0.5    0.0    0.0    0.0    0.0    0.0    0.0    1.0    5.3
S010:     3.3    2.3    1.1    0.3    0.0    0.0    0.0    0.0    0.0    0.0    0.6    3.4
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:   36.06 inches
     Snowfall:    31.3 inches

   Days precipitation at or above 0 inches (P000):   112.6
Days precipitation at or above 0.10 inches (P010):    66.0
Days Precipitation at or above 1.00 inches (P100):     8.9
      Days Snowfall at or above 0.1 inches (S001):    19.0
      Days Snowfall at or above 1.0 inches (S010):    11.0
     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