Alton Melvin Price Climate Normals

Official 1981-2010 Climate Normals

City: ALTON MELVIN PRICE
State: IL
ID: 110137
Latitude: 38.8661
Longitude: -90.1461
Elevation:  434.9 ft

Temperature-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
High:    39.7   44.3   54.6   66.7   75.9   84.8   88.9   87.7   80.7   68.8   56.1   42.9
Mean:    31.4   35.3   45.2   56.6   66.3   75.6   79.7   78.2   70.6   58.8   47.3   34.9
 Low:    23.0   26.4   35.8   46.5   56.8   66.4   70.4   68.6   60.5   48.7   38.5   26.9
 CDD:       0      0      5     29    116    324    454    408    203     33      3      0
 HDD:    1043    830    619    281     75      6      0      1     35    227    534    933

Number of Days
T090:     0.0    0.0    0.0    0.1    0.8    6.8   13.9   11.0    3.9    0.1    0.0    0.0
T100:     0.0    0.0    0.0    0.0    0.0    0.0    0.5    1.0    0.0    0.0    0.0    0.0
T000:     0.8    0.4    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.7
T032:    24.0   19.3   10.5    1.3    0.0    0.0    0.0    0.0    0.0    0.2    7.2   20.5
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Annual Values

 High Temp:    66.0 F
 Mean Temp:    56.7 F
  Low Temp:    47.5 F
Cooling DD:    1576
Heating DD:    4583

Days above  90 (T090):    36.5
Days above 100 (T100):     1.6
Days below   0 (T000):     1.9
Days below  32 (T032):    83.0
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Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    2.42   2.58   3.18   4.25   5.12   3.48   3.64   3.15   3.30   3.29   3.91   2.98

Number of Days
P001:     6.8    7.4    9.7    9.9   10.6    8.2    7.5    6.9    6.6    8.3    8.9    8.1
P010:     4.8    4.7    6.8    7.3    7.6    6.0    5.6    5.4    4.8    6.1    6.6    5.7
P100:     0.8    0.6    0.5    1.0    1.5    1.0    1.1    0.9    0.9    0.8    0.9    1.0
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Annual Values

Precipitation:   41.30 inches

   Days precipitation at or above 0 inches (P000):    98.9
Days precipitation at or above 0.10 inches (P010):    71.4
Days Precipitation at or above 1.00 inches (P100):    11.0

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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