Historical Climate Data

Precipitation Summary

Station: 114603 KANKAKEE METRO WASTWTR, IL

1971-2000 NCDC Normals

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Prec. (in) 1.77 1.62 2.78 3.80 4.54 4.44 4.38 3.11 3.47 2.70 3.36 2.61 38.58

Precipitation Extremes

Period of Record: 1887-2006


Month
High (in)
Year
Low (in)
Year 		1-Day
Max (in)
Date
Jan 4.68 1999 0.00 1896 1.78 01-13-2005
Feb 5.06 1997 0.00 1987 1.93 02-25-2001
Mar 5.62 1977 0.78 1981 1.68 03-28-1977
Apr 7.84 1975 1.07 1986 4.65 04-19-1975
May 9.58 2006 0.67 1992 3.95 05-25-2006
Jun 9.47 1993 0.03 1991 5.35 06-26-1978
Jul 12.94 2003 1.49 1974 4.36 07-10-2000
Aug 8.96 2004 0.62 1950 3.30 08-31-1980
Sep 10.77 1977 0.00 1979 3.44 09-01-1989
Oct 6.50 1991 0.54 1948 2.52 10-04-2000
Nov 9.19 1985 0.58 1949 3.36 11-28-1990
Dec 6.17 1982 0.38 1995 3.65 12-03-1982
             
Annual 52.69 1990 26.18 1988 5.35 06-26-1978
Winter 11.64 1950 2.21 1977 3.65 12-03-1982
Spring 18.03 1974 4.11 1992 4.65 04-19-1975
Summer 19.05 1996 5.24 1988 5.35 06-26-1978
Fall 15.81 1977 3.67 1999 3.44 09-01-1989

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 9.2 5.0 0.9 0.2
Feb 7.5 4.0 0.7 0.3
Mar 9.4 6.2 2.0 0.5
Apr 11.0 8.0 2.4 1.0
May 10.8 7.8 3.2 1.3
Jun 9.6 6.9 3.4 1.1
Jul 8.5 6.2 3.1 1.3
Aug 8.9 5.6 1.9 0.8
Sep 7.4 5.6 2.0 0.9
Oct 8.3 5.6 1.8 0.5
Nov 9.5 6.0 2.3 0.8
Dec 10.0 5.4 1.4 0.4
         
Annual 110.2 72.5 25.2 9.2
Winter 26.8 14.5 3.0 1.0
Spring 31.2 22.0 7.5 2.7
Summer 27.0 18.7 8.5 3.2
Fall 25.2 17.2 6.0 2.3

Temperature Summary

Station 114603 KANKAKEE METRO WASTWTR, IL

1971-2000 NCDC Normals

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High °F 31.1 36.8 48.3 60.7 72.8 82.6 85.7 83.5 77.6 65.1 49.5 36.4 60.8
Low °F 12.2 17.0 27.5 37.8 48.7 58.8 63.1 60.7 52.0 39.9 30.0 19.4 38.9
Mean °F 21.7 26.9 37.9 49.3 60.8 70.7 74.4 72.1 64.8 52.5 39.8 27.9 49.9
HDD 1343 1067 840 474 205 22 4 18 85 394 757 1150 6359
CDD 0 0 0 2 74 194 295 239 78 6 0 0 888

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

Temperature Extremes

Period of Record: 1887-2006


Month 		High
Mean °F
Year 		Low
Mean °F
Year 		1-Day
Max °F
Date 		1-Day
Min °F
Date
Jan 36.6 2006 9.0 1977 65 01-05-1997 -29 01-20-1985
Feb 38.3 1998 12.6 1979 74 02-26-2000 -21 02-05-1979
Mar 45.4 2000 28.7 1984 84 03-31-1986 -7 03-04-2002
Apr 56.0 1977 44.0 1982 91 04-27-1986 8 04-07-1982
May 70.2 1977 55.7 1997 94 05-20-1975 0 05-06-1949
Jun 75.4 2005 65.4 1982 103 06-26-1988 38 06-01-2003
Jul 78.8 1999 70.4 1992 103 07-25-1987 46 07-02-2001
Aug 78.8 1995 67.6 1992 107 08-17-1988 39 08-28-1986
Sep 70.9 2005 60.0 1993 99 09-07-1990 30 09-27-1991
Oct 58.6 1973 46.5 1988 89 10-04-1997 18 10-24-1981
Nov 48.6 2001 32.1 1976 78 11-01-1974 1 11-26-1977
Dec 38.0 1982 14.6 1983 70 12-03-1982 -26 12-24-1983
                 
Annual 57.7 1973 47.5 1979 107 08-17-1988 -29 01-20-1985
Winter 33.0 1998 15.5 1984 74 02-26-1900 -29 01-20-1985
Spring 56.8 1977 44.0 1984 94 05-20-1975 -7 03-04-1902
Summer 77.0 1988 68.5 1992 107 08-17-1988 38 06-01-1903
Fall 56.5 1973 48.4 1976 99 09-07-1990 1 11-26-1977

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 16.8 29.4 6.5
Feb 0.0 10.4 25.1 3.6
Mar 0.0 2.9 21.3 0.1
Apr 0.0 0.0 6.7 0.0
May 1.4 0.0 0.3 0.0
Jun 5.5 0.0 0.0 0.0
Jul 8.3 0.0 0.0 0.0
Aug 4.6 0.0 0.0 0.0
Sep 2.4 0.0 0.1 0.0
Oct 0.0 0.0 5.3 0.0
Nov 0.0 1.5 17.3 0.0
Dec 0.0 9.9 27.7 3.0
         
Annual 22.5 40.4 130.4 12.8
Winter 0.0 37.1 82.3 13.1
Spring 1.4 2.9 28.1 0.1
Summer 18.4 0.0 0.0 0.0
Fall 2.4 1.5 22.7 0.0

Snowfall Summary

Station: 114603 KANKAKEE METRO WASTWTR, IL

1971-2000 Averages

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Snow (in) 9.0 6.3 2.7 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.9 6.3 26.1

Snowfall Extremes

Period of Record: 1887-2006

Month High (in) Year 1-Day Max (in) Date
Jan 29.0 1979 13.0 01-13-1979
Feb 16.2 1982 6.0 02-26-1980
Mar 12.0 1991 7.0 03-09-1999
Apr 10.0 1982 7.0 04-11-1997
May 0.0 - - -
Jun 0.0 - - -
Jul 0.0 - - -
Aug 0.0 - - -
Sep 0.0 - - -
Oct 0.5 2000 0.5 10-08-2000
Nov 5.0 1977 4.0 11-28-1980
Dec 23.2 2000 7.5 12-12-2000
Season (Jul-Jun) 55.2 1981-1982 13.0 01-13-1979

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 3.4 3.0 1.6 0.1
Feb 3.4 3.0 1.6 0.1
Mar 1.5 1.1 0.5 0.2
Apr 0.4 0.3 0.2 0.1
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 0.6 0.5 0.2 0.0
Dec 3.6 2.9 1.6 0.2
Annual 13.8 11.2 5.7 1.0

Growing Season Summary

Station: 114603 KANKAKEE METRO WASTWTR, 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 6 19 108 306 651 922 1075 1005 751 401 124 20 5388
45 1 6 59 192 498 772 920 850 601 264 64 9 4240
50 0 2 30 107 353 622 765 695 454 154 29 3 3216
55 0 0 12 52 224 473 610 540 314 77 10 1 2318
60 0 0 3 23 125 329 455 386 193 32 2 0 1552
50** 4 12 71 185 399 605 729 675 477 251 71 12 3496

**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 4/19 3/29 4/09 5/08 5/28 10/11 9/23 9/28 10/22 11/05
30 4/14 3/27 4/05 4/29 5/06 10/19 9/27 10/05 11/05 11/14
28 4/10 3/18 3/25 4/23 5/07 10/23 10/02 10/08 11/13 11/20
24 4/03 3/03 3/16 4/12 4/21 11/08 10/20 10/25 11/21 11/27
20 3/20 3/03 3/11 4/09 4/11 11/20 10/24 11/03 12/05 12/21
16 3/11 2/09 2/15 3/28 4/07 11/29 11/03 11/10 12/20 12/21

Length of Growing Season (Days)

Derived from 1971-2000 Averages

Temp °F Median Shortest 10% 90% Longest
32 174 141 143 193 206
30 188 150 166 208 216
28 200 150 175 226 239
24 222 200 203 235 266
20 245 206 218 263 281
16 266 221 234 289 300

Back to the Station List

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