Galva Climate Normals

Official 1981-2010 Climate Normals

City: GALVA  
State: IL
ID: 113335
Latitude: 41.1739
Longitude: -90.0350
Elevation:  809.8 ft

Temperature-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
High:    30.1   35.2   48.1   61.7   72.4   81.6   84.6   82.7   76.0   63.6   48.4   34.0
Mean:    21.3   26.0   37.6   49.7   60.8   70.1   73.5   71.4   63.6   51.7   38.7   25.2
 Low:    12.5   16.9   27.2   37.8   49.2   58.7   62.5   60.1   51.2   39.7   29.1   16.3
 CDD:       0      0      1      9     53    182    271    212     81      9      0      0
 HDD:    1355   1090    848    467    183     28      6     13    124    422    788   1235

Number of Days
T090:     0.0    0.0    0.0    0.0    0.5    3.3    6.0    4.3    1.3    0.0    0.0    0.0
T100:     0.0    0.0    0.0    0.0    0.0    0.0    0.1    0.2    0.0    0.0    0.0    0.0
T000:     6.1    3.3    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    4.1
T032:    29.8   25.8   21.8    8.0    0.6    0.0    0.0    0.0    0.3    6.5   18.7   28.5
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Annual Values

 High Temp:    60.0 F
 Mean Temp:    49.3 F
  Low Temp:    38.5 F
Cooling DD:     817
Heating DD:    6559

Days above  90 (T090):    15.4
Days above 100 (T100):     0.3
Days below   0 (T000):    13.7
Days below  32 (T032):   140.0
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Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    1.54   1.64   2.63   4.11   3.98   4.32   3.84   4.22   3.41   2.83   3.03   2.23
Snow:     7.0    5.2    2.4    0.7    0.0    0.0    0.0    0.0    0.0    0.0    1.3    4.0

Number of Days
P001:     5.2    5.5    8.7   10.2   10.1    9.9    8.4    8.8    7.7    8.5    8.6    7.2
P010:     3.4    3.8    5.9    7.2    7.0    7.2    6.4    6.1    5.5    5.7    5.9    4.5
P100:     0.3    0.3    0.6    1.0    0.9    1.5    1.0    1.6    1.0    0.7    0.6    0.4
S001:     3.0    2.4    1.0    0.3    0.0    0.0    0.0    0.0    0.0    0.0    0.7    3.0
S010:     2.2    1.7    0.7    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.4    2.0
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
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Annual Values

Precipitation:   37.78 inches
     Snowfall:    20.6 inches

   Days precipitation at or above 0 inches (P000):    98.8
Days precipitation at or above 0.10 inches (P010):    68.6
Days Precipitation at or above 1.00 inches (P100):     9.9
      Days Snowfall at or above 0.1 inches (S001):    10.4
      Days Snowfall at or above 1.0 inches (S010):     7.1
     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