Historical Climate Data

Precipitation Summary

Station: 112483 DU QUOIN 4 SE, IL

1971-2000 NCDC Normals

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Prec. (in) 2.75 2.61 4.30 4.27 4.81 4.23 3.54 3.33 3.27 3.17 4.44 3.47 44.19

Precipitation Extremes

Period of Record: 1893-2006


Month
High (in)
Year
Low (in)
Year 		1-Day
Max (in)
Date
Jan 11.28 1949 0.31 1943 3.86 01-23-1937
Feb 6.97 1945 0.12 1947 4.25 02-26-1945
Mar 13.94 1945 0.08 1910 4.75 03-25-1904
Apr 12.74 1996 0.86 1977 4.97 04-28-1996
May 14.22 1995 0.59 1914 4.96 05-18-1995
Jun 15.20 1998 0.09 1933 5.25 06-29-1998
Jul 13.49 1905 0.15 2002 6.60 07-21-1905
Aug 11.78 1915 0.04 1936 5.38 08-17-1959
Sep 10.49 1993 0.24 1960 4.56 09-23-1993
Oct 10.53 1949 0.00 1908 4.60 10-04-1910
Nov 11.07 1993 0.08 1965 6.70 11-14-1993
Dec 13.24 1982 0.29 1955 3.71 12-03-1982
             
Annual 62.63 1945 21.85 1901 6.70 11-14-1993
Winter 21.36 1950 3.17 1936 4.25 02-26-1945
Spring 26.29 1945 3.71 1930 4.97 04-28-1996
Summer 24.60 1915 3.47 1930 6.60 07-21-1905
Fall 25.28 1993 2.77 1971 6.70 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 7.9 5.1 2.0 0.7
Feb 7.0 5.0 1.8 0.7
Mar 9.8 7.2 3.1 1.0
Apr 10.2 7.8 2.9 1.1
May 9.6 7.4 3.4 1.5
Jun 8.7 6.8 3.0 0.9
Jul 7.2 5.2 2.4 1.0
Aug 7.0 5.4 2.0 1.0
Sep 6.8 4.9 2.3 1.0
Oct 7.1 5.4 2.2 0.8
Nov 8.5 6.4 3.1 1.5
Dec 8.0 6.1 2.8 0.8
         
Annual 98.2 72.8 31.2 12.0
Winter 22.9 16.3 6.7 2.2
Spring 29.6 22.4 9.4 3.6
Summer 23.1 17.4 7.5 2.9
Fall 22.4 16.6 7.6 3.3

Temperature Summary

Station 112483 DU QUOIN 4 SE, IL

1971-2000 NCDC Normals

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High °F 39.8 46.3 57.2 67.9 77.3 85.6 89.6 87.8 80.9 70.5 56.2 44.1 66.9
Low °F 21.7 26.3 35.8 45.3 55.1 64.0 67.8 64.8 56.8 45.3 35.7 26.0 45.4
Mean °F 30.8 36.3 46.5 56.6 66.2 74.8 78.7 76.3 68.9 57.9 46.0 35.1 56.2
HDD 1062 804 573 270 92 4 0 2 44 253 573 929 4606
CDD 0 0 0 18 129 297 424 353 159 33 1 0 1414

HDD - heating degree days (base 65F); CDD - cooling degree days (base 65F)

Temperature Extremes

Period of Record: 1895-2006


Month 		High
Mean °F
Year 		Low
Mean °F
Year 		1-Day
Max °F
Date 		1-Day
Min °F
Date
Jan 43.9 1933 14.8 1977 76 01-24-1943 -22 01-13-1912
Feb 45.7 1938 24.4 1979 79 02-10-1932 -16 02-03-1985
Mar 58.5 1910 31.8 1960 92 03-23-1910 -10 03-05-1978
Apr 66.0 1895 48.7 1983 92 04-30-1901 20 04-05-1944
May 72.3 1902 59.9 1924 97 05-20-1902 29 05-01-1903
Jun 81.9 1952 69.9 1912 106 06-25-1988 39 06-16-1917
Jul 85.0 1934 74.0 1924 113 07-25-1934 47 07-26-1911
Aug 84.5 1918 70.9 1915 113 08-09-1930 43 08-31-1915
Sep 77.3 1925 62.2 1918 108 09-06-1925 27 09-29-1899
Oct 66.2 1947 50.2 1976 96 10-02-1953 20 10-30-1925
Nov 57.7 1931 37.2 1976 85 11-03-1909 -4 11-30-1929
Dec 45.2 1931 21.6 1989 76 12-17-1908 -15 12-20-1901
                 
Annual 60.1 1931 52.1 1901 113 07-25-1934 -22 01-13-1912
Winter 44.2 1932 25.7 1977 79 02-10-1932 -22 01-13-1912
Spring 60.6 1946 51.5 1960 97 05-20-1902 -10 03-05-1978
Summer 81.7 1934 72.6 1927 113 07-25-1934 39 06-16-1917
Fall 65.5 1931 50.6 1976 108 09-06-1925 -4 11-30-1929

Temperature Threshold Climatology

Derived from 1971-2000 Averages:

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


Month 		# Days
High ≥ 90°F 		# Days
High ≤ 32°F 		# Days
Low ≤ 32°F 		# Days
Low ≤ 0°F
Jan 0.0 9.1 25.9 2.1
Feb 0.0 4.1 18.9 1.0
Mar 0.0 0.7 12.8 0.0
Apr 0.1 0.0 3.3 0.0
May 1.6 0.0 0.1 0.0
Jun 8.8 0.0 0.0 0.0
Jul 16.0 0.0 0.0 0.0
Aug 12.4 0.0 0.0 0.0
Sep 4.6 0.0 0.1 0.0
Oct 0.1 0.0 3.6 0.0
Nov 0.0 0.3 12.9 0.0
Dec 0.0 5.1 22.6 0.8
         
Annual 43.0 19.3 99.6 3.9
Winter 0.0 18.5 67.4 3.9
Spring 1.7 0.7 16.2 0.0
Summer 37.1 0.0 0.0 0.0
Fall 4.7 0.3 16.5 0.0

Snowfall Summary

Station: 112483 DU QUOIN 4 SE, IL

1971-2000 Averages

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Snow (in) 4.8 3.0 1.2 0.5 0.0 0.0 0.0 0.0 0.0 0.2 0.8 2.7 13.2

Snowfall Extremes

Period of Record: 1893-2006

Month High (in) Year 1-Day Max (in) Date
Jan 26.0 1918 14.0 01-14-1918
Feb 17.2 1912 14.0 02-20-1912
Mar 17.0 1960 10.0 03-14-1999
Apr 7.8 1971 7.8 04-06-1971
May 1.0 1929 1.0 05-02-1929
Jun 0.0 - - -
Jul 0.0 - - -
Aug 0.0 - - -
Sep 0.0 - - -
Oct 5.0 1925 3.0 10-29-1925
Nov 9.0 1980 7.0 11-28-1958
Dec 16.0 2002 10.5 12-27-1990
Season (Jul-Jun) 47.7 1911-1912 14.0 02-20-1912

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 1.6 1.3 0.5 0.1
Feb 1.6 1.3 0.5 0.1
Mar 0.5 0.4 0.2 0.0
Apr 0.2 0.1 0.1 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 0.1 0.1 0.0 0.0
Nov 0.3 0.3 0.2 0.0
Dec 1.5 1.2 0.5 0.2
Annual 6.9 5.0 2.5 0.5

Growing Season Summary

Station: 112483 DU QUOIN 4 SE, IL

Growing Degree Day Averages

Derived from 1971-2000 Data

Base Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
40 41 91 245 492 792 1024 1193 1103 851 543 222 66 6582
45 17 47 150 355 639 876 1038 951 704 397 134 31 5271
50 6 19 82 233 487 728 884 799 557 264 70 12 4087
55 2 6 38 135 341 580 730 647 413 156 30 4 3037
60 0 1 14 67 211 432 575 495 279 78 9 0 2127
50** 24 57 149 300 507 694 814 747 559 346 129 37 4310

**Modified Growing Degree Days: Base 50, Ceiling 86.

Growing Season Summary

Derived from 1971-2000 Averages

Date of Last Spring Occurrence Date of First Fall Occurrence
Temp °F Median Early 90% 10% Late Median Early 90% 10% Late
32 4/10 3/24 3/29 4/27 5/04 10/12 9/23 10/02 11/04 11/10
30 4/07 3/07 3/22 4/18 5/04 10/22 10/02 10/07 11/06 11/14
28 4/05 3/07 3/14 4/12 4/20 10/26 10/08 10/11 11/10 11/20
24 3/16 2/20 3/08 4/08 4/11 11/13 10/14 10/26 12/04 12/05
20 3/08 1/30 2/11 3/19 3/25 11/21 10/24 11/03 12/12 12/22
16 2/16 12/24 1/28 3/13 3/25 12/11 11/07 11/18 12/25 1/02

Length of Growing Season (Days)

Derived from 1971-2000 Averages

Temp °F Median Shortest 10% 90% Longest
32 187 155 163 209 215
30 199 159 179 217 233
28 207 187 195 232 239
24 240 202 213 264 276
20 261 228 240 288 300
16 291 254 267 331 363

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