Historical Climate Data

Precipitation Summary

Station: 117603 STE MARIE, IL

1971-2000 NCDC Normals

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Prec. (in) 2.61 2.44 3.90 4.13 4.63 4.05 4.30 3.59 3.38 2.85 4.11 3.21 43.20

Precipitation Extremes

Period of Record: 1947-2006


Month
High (in)
Year
Low (in)
Year 		1-Day
Max (in)
Date
Jan 11.89 1950 0.07 1986 3.65 01-31-1947
Feb 6.51 1950 0.00 1947 2.57 02-23-1975
Mar 8.27 1973 0.75 2001 2.96 03-28-1977
Apr 8.59 1972 1.19 1971 3.03 04-29-1996
May 11.22 1996 0.99 1964 5.01 05-13-2002
Jun 9.49 1957 0.81 1959 3.04 06-17-2000
Jul 10.86 1958 0.86 1949 5.01 07-13-1956
Aug 8.64 1974 0.09 1953 5.16 08-03-1972
Sep 8.53 1974 0.14 2004 3.12 09-23-1993
Oct 8.56 2001 0.23 1952 2.75 10-06-1949
Nov 13.48 1985 0.26 1999 3.82 11-14-1993
Dec 9.28 1990 0.19 1958 3.17 12-30-1990
             
Annual 57.32 1985 25.47 1976 5.16 08-03-1972
Winter 23.75 1950 2.34 1963 3.65 01-31-1947
Spring 21.23 1996 5.52 2001 5.01 05-13-2002
Summer 19.43 1958 4.46 2002 5.16 08-03-1972
Fall 18.92 1993 2.13 1999 3.82 11-14-1993

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 8.1 5.4 1.7 0.4
Feb 7.3 5.1 1.5 0.4
Mar 10.7 7.5 2.7 0.7
Apr 11.4 7.9 2.7 0.9
May 10.8 7.9 3.2 1.3
Jun 9.8 7.2 3.0 1.0
Jul 8.3 6.6 2.8 1.4
Aug 7.5 5.4 2.3 1.1
Sep 7.0 5.1 2.0 1.2
Oct 7.8 5.1 1.8 0.8
Nov 9.6 6.8 2.9 1.0
Dec 9.1 6.4 2.3 0.7
         
Annual 107.3 76.5 29.0 10.9
Winter 24.5 16.9 5.5 1.5
Spring 32.9 23.4 8.6 3.0
Summer 25.6 19.2 8.1 3.5
Fall 24.4 17.0 6.8 3.0

Temperature Summary

There are insufficient temperature data to produce the temperature summary.

Snowfall Summary

Station: 117603 STE MARIE, IL

1971-2000 Averages

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Snow (in) 4.1 2.8 1.7 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.7 3.4 12.8

Snowfall Extremes

Period of Record: 1947-2006

Month High (in) Year 1-Day Max (in) Date
Jan 17.1 1977 10.0 01-13-1964
Feb 16.8 1993 7.1 02-26-1993
Mar 10.5 1996 9.1 03-12-2000
Apr 0.5 1982 0.5 04-08-1982
May 0.0 - - -
Jun 0.0 - - -
Jul 0.0 - - -
Aug 0.0 - - -
Sep 0.0 - - -
Oct 2.1 1993 2.1 10-30-1993
Nov 5.1 1997 4.0 11-27-1975
Dec 18.2 2000 9.0 12-20-1973
Season (Jul-Jun) 34.1 1995-1996 10.0 01-13-1964

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 1.1 1.0 0.7 0.2
Feb 1.1 1.0 0.7 0.2
Mar 0.7 0.5 0.4 0.1
Apr 0.0 0.0 0.0 0.0
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 0.0 0.0 0.0 0.0
Nov 0.3 0.3 0.2 0.0
Dec 1.3 1.3 0.8 0.1
Annual 5.5 4.8 2.9 0.6

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