CHICAGO MIDWAY AP 3 SW, ILLINOIS

Period of Record General Climate Summary - Precipitation

Station:(111577) CHICAGO MIDWAY AP 3 SW
From Year=1928 To Year=2012
Precipitation Total Snowfall
Mean High Year Low Year 1 Day Max. >=
0.01 in.		 >=
0.10 in.		 >=
0.50 in.		 >=
1.00 in.		 Mean High Year
in. in. - in. - in. dd/yyyy
or
yyyymmdd		 # Days # Days # Days # Days in. in. -
January 1.98 5.32 2005 0.13 1981 2.76 12/1960 11 5 1 0 11.1 40.4 1979
February 1.64 6.76 1997 0.25 1969 3.25 21/1997 9 4 1 0 8.8 28.8 2011
March 2.76 6.76 2009 0.33 1958 2.50 31/1929 12 6 2 0 6.5 24.1 1930
April 3.52 8.33 1947 0.45 1971 3.83 18/1975 12 7 2 1 1.2 12.2 1982
May 3.70 7.59 1945 0.25 1992 3.30 11/1966 11 7 2 1 0.1 3.7 1940
June 4.09 13.03 1993 0.78 1956 4.64 13/1976 10 7 3 1 0.0 0.0 1928
July 4.12 10.29 1996 1.12 2002 6.16 12/1957 10 6 3 1 0.0 0.0 1948
August 3.76 9.95 1987 0.76 1996 3.90 26/1987 9 6 3 1 0.0 0.0 1948
September 3.17 14.17 1961 0.01 1979 4.16 11/2000 9 5 2 1 0.0 0.0 1948
October 2.80 12.06 1954 0.20 1964 3.95 03/1954 9 5 2 1 0.2 4.4 1967
November 2.67 7.63 1985 0.55 1976 3.49 10/1995 10 6 2 1 2.1 13.0 1951
December 2.34 7.21 1982 0.30 1962 2.78 02/1982 11 5 1 0 9.4 41.3 2000
Annual 36.54 49.64 1993 22.22 1962 6.16 19570712 123 70 23 8 39.3 101.6 1978
Winter 5.96 13.79 1950 1.45 1931 3.25 19970221 31 14 3 1 29.3 84.2 1979
Spring 9.98 17.04 2009 2.79 1934 3.83 19750418 34 21 6 2 7.8 28.5 1970
Summer 11.97 21.69 1993 4.58 2005 6.16 19570712 29 19 8 3 0.0 0.0 1948
Fall 8.63 19.32 1961 2.07 1956 4.16 20000911 28 16 6 2 2.3 13.0 1951
Table updated on Oct 31, 2012
For monthly and annual means, thresholds, and sums:
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Seasons are climatological not calendar seasons
Winter = Dec., Jan., and Feb. Spring = Mar., Apr., and May
Summer = Jun., Jul., and Aug. Fall = Sep., Oct., and Nov. 






Western Regional Climate Center, wrcc@dri.edu