McLeansboro Climate Normals

Official 1981-2010 Climate Normals

City: MCLEANSBORO  
State: IL
ID: 115515
Latitude: 38.0844
Longitude: -88.5425
Elevation:  445.8 ft

Temperature-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
High:    40.0   45.2   55.7   66.4   76.0   85.0   88.6   88.3   81.7   69.8   56.7   43.4
Mean:    30.7   35.2   44.7   55.1   64.7   73.7   77.0   75.7   68.4   56.9   45.8   33.8
 Low:    21.5   25.2   33.7   43.9   53.5   62.5   65.5   63.1   55.0   44.1   34.8   24.3
 CDD:       0      0      3     21     92    272    374    334    155     27      2      0
 HDD:    1062    834    633    316    100      9      1      2     54    276    580    965

Number of Days
T090:     0.0    0.0    0.0    0.0    1.0    6.8   12.6   12.5    4.6    0.2    0.0    0.0
T100:     0.0    0.0    0.0    0.0    0.0    0.1    0.4    0.5    0.1    0.0    0.0    0.0
T000:     1.5    0.6    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.9
T032:    26.1   20.2   14.6    2.8    0.0    0.0    0.0    0.0    0.0    3.0   12.0   23.1
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Annual Values

 High Temp:    66.5 F
 Mean Temp:    55.3 F
  Low Temp:    44.0 F
Cooling DD:    1280
Heating DD:    4833

Days above  90 (T090):    37.7
Days above 100 (T100):     1.0
Days below   0 (T000):     2.9
Days below  32 (T032):   101.7
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Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    3.06   2.89   4.50   4.40   5.38   4.01   3.59   3.02   3.10   3.61   4.39   3.93
Snow:     3.9    4.1    1.8    0.2    0.0    0.0    0.0    0.0    0.0    0.3    0.1    3.7

Number of Days
P001:     9.4    9.3   12.1   12.2   12.1   10.2    8.5    8.2    7.9    9.4   11.0   11.2
P010:     5.4    6.0    7.5    8.0    8.1    6.3    5.4    5.2    5.1    5.7    6.9    7.0
P100:     0.7    0.5    0.9    0.9    1.2    1.0    1.0    0.7    0.9    0.7    1.0    1.0
S001:     3.1    2.1    1.3    0.1    0.0    0.0    0.0    0.0    0.0    0.1    0.1    2.3
S010:     1.3    1.3    0.6    0.1    0.0    0.0    0.0    0.0    0.0    0.1    0.0    1.1
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:   45.88 inches
     Snowfall:    14.1 inches

   Days precipitation at or above 0 inches (P000):   121.5
Days precipitation at or above 0.10 inches (P010):    76.6
Days Precipitation at or above 1.00 inches (P100):    10.5
      Days Snowfall at or above 0.1 inches (S001):     9.1
      Days Snowfall at or above 1.0 inches (S010):     4.5
     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