Official 1981-2010 Climate Normals

City: CRYSTAL LAKE 4
State: IL
ID: 112048
Latitude: 42.2611
Longitude: -88.3953
Elevation:  939.7 ft



Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    1.72   1.69   2.27   3.40   4.63   4.35   3.73   4.29   3.17   3.06   2.82   2.11
Snow:    10.3    7.9    4.5    1.1    0.0    0.0    0.0    0.0    0.0    0.0    1.4   10.3

Number of Days
P001:     8.6    7.3    8.5   10.6   11.2   10.3    8.9    8.8    7.5    8.8    8.8    9.5
P010:     5.4    4.5    4.7    7.9    8.2    7.3    6.2    6.5    5.4    6.2    5.3    5.4
P100:     0.1    0.2    0.4    0.9    1.2    1.1    1.4    1.2    0.8    0.6    0.6    0.4
S001:     6.2    4.6    3.2    0.9    0.1    0.0    0.0    0.0    0.0    0.0    1.3    6.2
S010:     3.4    2.1    1.6    0.5    0.0    0.0    0.0    0.0    0.0    0.0    0.5    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:   37.24 inches
     Snowfall:    35.5 inches

   Days precipitation at or above 0 inches (P000):   108.8
Days precipitation at or above 0.10 inches (P010):    73.0
Days Precipitation at or above 1.00 inches (P100):     8.9
      Days Snowfall at or above 0.1 inches (S001):    22.5
      Days Snowfall at or above 1.0 inches (S010):    11.5
     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