Macomb Climate Normals

Official 1981-2010 Climate Normals

City: MACOMB  
State: IL
ID: 115280
Latitude: 40.4792
Longitude: -90.6692
Elevation:  609.8 ft

Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    1.60   1.76   2.69   3.69   4.34   4.49   4.13   3.51   3.60   3.31   2.79   2.26

Number of Days
P001:     6.8    6.3    8.7   10.1   11.2   10.0    9.0    8.2    7.5    7.7    8.7    7.5
P010:     4.0    3.3    5.6    6.8    7.5    6.4    5.9    5.5    5.3    4.8    5.7    4.3
P100:     0.4    0.3    0.4    1.1    1.2    1.4    1.3    1.0    1.1    0.6    0.5    0.4
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Annual Values

Precipitation:   38.17 inches

   Days precipitation at or above 0 inches (P000):   101.7
Days precipitation at or above 0.10 inches (P010):    65.1
Days Precipitation at or above 1.00 inches (P100):     9.7

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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