Official 1981-2010 Climate Normals

City: CENTRALIA  
State: IL
ID: 111386
Latitude: 38.5547
Longitude: -89.1297
Elevation:  459.9 ft



Precipitation-Related Normals

Normal    Jan    Feb    Mar    Apr    May    Jun    Jul    Aug    Sep    Oct    Nov    Dec
Prcp:    2.70   2.61   3.72   4.08   5.00   4.49   4.01   2.71   2.93   3.85   4.08   3.28
Snow:     2.1    3.7    0.9    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.1    1.9

Number of Days
P001:     8.4    7.0    9.7   10.2   11.6    8.9    8.2    6.9    7.2    8.3    9.2    9.2
P010:     5.3    4.8    6.8    7.5    8.0    6.6    5.9    4.6    4.8    5.7    6.8    6.3
P100:     0.7    0.5    1.0    0.9    1.6    1.3    1.1    0.5    0.8    1.0    0.9    0.8
S001:     0.9    1.5    0.2    0.0    0.0    0.0    0.0    0.0    0.0    0.1    0.0    0.8
S010:     0.5    0.9    0.1    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.4
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
------------------------------------------------------------------------------------------
Annual Values

Precipitation:   43.46 inches
     Snowfall:     8.8 inches

   Days precipitation at or above 0 inches (P000):   104.8
Days precipitation at or above 0.10 inches (P010):    73.1
Days Precipitation at or above 1.00 inches (P100):    11.1
      Days Snowfall at or above 0.1 inches (S001):     3.5
      Days Snowfall at or above 1.0 inches (S010):     1.9
     Days Snowfall at or above 10.0 inches (S100):     0.0

------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------
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