Historical Climate Data

Precipitation Summary

Station: 113312 GALENA, IL

1971-2000 NCDC Normals

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Prec. (in) 1.28 1.47 2.46 3.48 3.99 4.73 3.75 4.20 3.81 2.31 2.76 1.85 36.09

Precipitation Extremes

Period of Record: 1895-2006


Month
High (in)
Year
Low (in)
Year 		1-Day
Max (in)
Date
Jan 7.29 1960 0.09 1964 2.50 01-15-1960
Feb 3.39 1998 0.00 1952 2.15 02-27-1998
Mar 5.28 1991 0.32 1958 2.77 03-31-1998
Apr 7.30 1999 0.33 1946 2.10 04-17-1960
May 9.24 1974 0.67 1992 3.47 05-24-1896
Jun 9.68 1947 0.36 1988 6.00 06-04-2002
Jul 13.19 1962 0.17 1927 5.28 07-26-1896
Aug 12.88 2002 0.00 1969 11.69 08-22-2002
Sep 14.43 1986 0.13 1979 4.80 09-03-1973
Oct 7.61 1984 0.00 1952 3.10 10-29-1896
Nov 7.44 1992 0.13 1955 2.89 11-17-1952
Dec 5.08 1982 0.25 1995 2.47 12-02-1982
             
Annual 48.89 1965 18.85 1988 11.69 08-22-2002
Winter 11.98 1960 0.96 1964 2.50 01-15-1960
Spring 17.88 1973 2.84 1936 3.47 05-24-1896
Summer 26.13 2002 4.74 1988 11.69 08-22-2002
Fall 19.30 1986 3.19 1953 4.80 09-03-1973

Precipitation Threshold Climatology

Derived from 1971-2000 Averages:

*Annual/seasonal totals may differ from the sum of the monthly totals due to rounding.


Month 		# Days
Total ≥ 0.01" 		# Days
Total ≥ 0.10" 		# Days
Total ≥ 0.50" 		# Days
Total ≥ 1.00"
Jan 8.4 3.7 0.6 0.1
Feb 6.6 4.0 0.9 0.2
Mar 9.7 5.7 1.4 0.4
Apr 11.7 7.4 2.4 0.7
May 11.9 7.5 2.5 1.0
Jun 10.9 7.6 3.2 1.3
Jul 9.4 6.1 2.7 1.1
Aug 10.0 6.3 3.0 1.2
Sep 8.7 5.8 2.4 1.1
Oct 8.1 4.9 1.5 0.4
Nov 9.4 5.6 1.9 0.5
Dec 8.3 4.5 1.0 0.3
         
Annual 113.3 69.3 23.4 8.4
Winter 23.3 12.2 2.5 0.6
Spring 33.4 20.6 6.3 2.1
Summer 30.4 20.1 8.8 3.6
Fall 26.3 16.3 5.8 2.1

Temperature Summary

There are insufficient temperature data to produce the temperature summary.

Snowfall Summary

Station: 113312 GALENA, IL

1971-2000 Averages

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Snow (in) 10.3 6.7 5.3 2.2 0.2 0.0 0.0 0.0 0.0 0.3 3.3 9.0 37.3

Snowfall Extremes

Period of Record: 1895-2006

Month High (in) Year 1-Day Max (in) Date
Jan 25.5 1979 11.0 01-04-1971
Feb 25.2 1962 18.0 02-19-1962
Mar 25.5 1959 17.0 03-06-1959
Apr 14.0 1973 12.0 04-09-1973
May 7.0 1994 7.0 05-01-1994
Jun 0.0 - - -
Jul 0.0 - - -
Aug 0.0 - - -
Sep 0.0 - - -
Oct 6.0 1997 6.0 10-27-1997
Nov 11.5 1977 7.0 11-14-1972
Dec 34.6 1951 14.5 12-28-1966
Season (Jul-Jun) 63.4 1978-1979 18.0 02-19-1962

Snowfall Threshold Climatology

Derived from 1971-2000 Averages

*Annual values may differ from the sum of the monthly values due to rounding.


Month 		# Days
Total ≥ 0.1" 		# Days
Total ≥ 1.0" 		# Days
Total ≥ 2.0" 		# Days
Total ≥ 5.0"
Jan 4.2 2.8 1.5 0.2
Feb 4.2 2.8 1.5 0.2
Mar 3.3 1.8 1.2 0.2
Apr 0.9 0.6 0.3 0.2
May 0.0 0.0 0.0 0.0
Jun 0.0 0.0 0.0 0.0
Jul 0.0 0.0 0.0 0.0
Aug 0.0 0.0 0.0 0.0
Sep 0.0 0.0 0.0 0.0
Oct 0.1 0.1 0.0 0.0
Nov 2.4 1.1 0.7 0.1
Dec 5.2 3.4 1.9 0.3
Annual 22.6 13.8 7.7 1.5

Growing Season Summary

There are insufficient temperature data to produce the growing season summary.

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Copyright 2007 Illinois State Water Survey
Jim Angel, State Climatologist, jimangel@illinois.edu
Last Modified: September 11, 2007