Morris Climate Normals

Official 1981-2010 Climate Normals

City: MORRIS 1 NW
State: IL
ID: 115825
Latitude: 41.3708
Longitude: -88.4336
Elevation:  523.8 ft

Temperature-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
High:    31.0   36.1   47.8   61.3   71.6   81.5   84.5   82.4   76.6   64.6   49.6   35.4
Mean:    23.2   27.8   38.3   50.7   61.1   71.0   74.5   72.6   65.4   53.6   41.2   27.7
 Low:    15.4   19.5   28.9   40.1   50.5   60.5   64.4   62.8   54.2   42.5   32.8   20.0
 CDD:       0      0      1     10     62    208    296    241    102     16      1      0
 HDD:    1295   1041    827    439    184     29      3      6     90    371    715   1156

Number of Days
T090:     0.0    0.0    0.0    0.0    0.7    4.8    5.4    2.6    1.2    0.2    0.0    0.0
T100:     0.0    0.0    0.0    0.0    0.0    0.0    0.1    0.0    0.0    0.0    0.0    0.0
T000:     4.3    1.7    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    1.1
T032:    28.4   24.6   20.3    5.9    0.4    0.0    0.0    0.0    0.1    3.6   14.2   27.2
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Annual Values

 High Temp:    60.3 F
 Mean Temp:    50.7 F
  Low Temp:    41.1 F
Cooling DD:     937
Heating DD:    6156

Days above  90 (T090):    14.9
Days above 100 (T100):     0.1
Days below   0 (T000):     7.2
Days below  32 (T032):   124.7
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Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    1.82   1.67   2.26   3.12   3.96   4.40   5.13   3.95   3.34   3.06   2.96   2.24
Snow:     8.0    5.4    2.9    0.4    0.0    0.0    0.0    0.0    0.0    0.0    1.0    6.3

Number of Days
P001:    10.0    7.8    8.9    9.9   12.2   10.9    9.0    9.6    7.1    9.3    7.7    9.7
P010:     5.1    3.6    5.4    6.8    7.9    6.8    6.6    6.1    4.4    5.5    4.8    4.9
P100:     0.4    0.3    0.5    0.4    0.9    1.5    1.6    1.5    1.0    0.6    0.4    0.5
S001:     5.9    3.6    1.7    0.4    0.0    0.0    0.0    0.0    0.0    0.0    0.9    4.8
S010:     3.5    1.7    0.8    0.2    0.0    0.0    0.0    0.0    0.0    0.0    0.4    2.4
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:   37.91 inches
     Snowfall:    24.0 inches

   Days precipitation at or above 0 inches (P000):   112.1
Days precipitation at or above 0.10 inches (P010):    67.9
Days Precipitation at or above 1.00 inches (P100):     9.6
      Days Snowfall at or above 0.1 inches (S001):    17.3
      Days Snowfall at or above 1.0 inches (S010):     9.0
     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