Historical Climate Data

Precipitation Summary

Station: 117551 RUSHVILLE, IL

1971-2000 NCDC Normals

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Prec. (in) 1.55 1.89 3.05 3.89 5.14 3.92 3.87 3.54 3.63 3.25 3.16 2.43 39.32

Precipitation Extremes

Period of Record: 1890-2006


Month
High (in)
Year
Low (in)
Year 		1-Day
Max (in)
Date
Jan 6.17 1965 0.05 1919 3.50 01-19-1907
Feb 4.63 1990 0.10 1917 2.48 02-21-1997
Mar 10.43 1973 0.12 1910 3.17 03-04-1964
Apr 8.82 1893 0.36 1932 3.10 04-21-1973
May 14.26 1996 0.29 1934 4.95 05-20-1984
Jun 13.21 1947 0.41 1991 4.12 06-20-1990
Jul 11.30 1981 0.25 1936 5.20 07-18-2003
Aug 8.56 1940 0.00 1909 5.87 08-23-2001
Sep 14.65 1911 0.00 1956 4.77 09-24-1911
Oct 10.83 1991 0.15 1964 5.20 10-04-1991
Nov 10.36 1985 0.00 1914 2.65 11-18-1985
Dec 6.38 1982 0.10 1919 3.10 12-21-1949
             
Annual 57.16 1990 21.37 1987 5.87 08-23-2001
Winter 11.02 1950 1.17 1920 3.50 01-19-1907
Spring 20.85 1973 3.19 1934 4.95 05-20-1984
Summer 23.62 1981 2.77 1936 5.87 08-23-2001
Fall 19.16 1991 1.56 1939 5.20 10-04-1991

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 5.5 3.7 1.0 0.4
Feb 5.5 3.8 1.4 0.6
Mar 7.9 6.2 2.1 0.8
Apr 8.5 6.9 3.1 1.1
May 9.1 7.3 3.3 1.7
Jun 7.8 6.4 3.1 1.2
Jul 6.5 5.8 2.6 1.2
Aug 6.8 5.5 2.7 1.2
Sep 6.1 5.3 2.6 1.1
Oct 6.6 5.1 2.2 1.0
Nov 6.8 5.7 2.4 0.9
Dec 6.2 5.0 1.7 0.7
         
Annual 83.4 66.9 28.3 12.0
Winter 17.2 12.5 4.2 1.7
Spring 25.4 20.4 8.5 3.6
Summer 21.1 17.7 8.4 3.6
Fall 19.6 16.1 7.3 3.0

Temperature Summary

Station 117551 RUSHVILLE, IL

1971-2000 NCDC Normals

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High °F 32.2 38.3 50.0 62.7 73.0 82.0 86.5 84.4 77.5 66.0 50.0 37.1 61.6
Low °F 14.6 19.7 30.3 41.1 51.3 60.8 65.3 62.8 54.3 42.9 31.1 20.5 41.2
Mean °F 23.4 29.0 40.2 51.9 62.2 71.4 75.9 73.6 65.9 54.5 40.6 28.8 51.5
HDD 1290 1008 771 400 162 14 0 12 71 338 734 1122 5922
CDD 0 0 0 6 74 207 336 277 99 11 0 0 1010

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

Temperature Extremes

Period of Record: 1890-2006


Month 		High
Mean °F
Year 		Low
Mean °F
Year 		1-Day
Max °F
Date 		1-Day
Min °F
Date
Jan 39.1 1933 11.4 1977 74 01-23-1909 -21 01-12-1918
Feb 40.9 1954 16.0 1936 78 02-10-1932 -26 02-13-1905
Mar 53.4 1910 26.1 1960 90 03-21-1907 -11 03-05-1960
Apr 60.6 1955 46.0 1907 95 04-28-1894 9 04-05-1920
May 71.4 1962 55.0 2002 105 05-31-1934 21 05-18-2002
Jun 80.8 1934 66.3 1974 104 06-01-1934 39 06-12-1903
Jul 85.9 1936 71.9 1967 113 07-15-1936 46 07-02-1904
Aug 83.0 1947 67.5 1915 111 08-08-1934 41 08-29-1934
Sep 74.3 1933 58.6 1974 103 09-01-1913 26 09-28-1942
Oct 64.5 1947 45.7 1925 93 10-03-1922 4 10-30-1925
Nov 50.4 1931 34.3 1959 84 11-01-1950 -8 11-30-1964
Dec 40.0 1923 15.9 2000 83 12-30-1895 -22 12-28-1924
                 
Annual 57.4 1890 44.7 2004 113 07-15-1936 -26 02-13-1905
Winter 37.1 1932 19.5 1936 83 12-30-1995 -26 02-13-1905
Spring 58.2 1977 47.5 1996 105 05-31-1934 -11 03-05-1960
Summer 80.9 1936 69.3 1915 113 07-15-1936 39 06-12-1903
Fall 61.3 1931 49.9 1976 103 09-01-1913 -8 11-30-1964

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 14.8 28.7 5.0
Feb 0.0 9.0 23.5 2.5
Mar 0.0 2.0 17.7 0.2
Apr 0.0 0.1 4.4 0.0
May 0.5 0.0 0.1 0.0
Jun 4.6 0.0 0.0 0.0
Jul 10.7 0.0 0.0 0.0
Aug 7.3 0.0 0.0 0.0
Sep 2.1 0.0 0.2 0.0
Oct 0.1 0.0 4.1 0.0
Nov 0.0 1.7 16.3 0.1
Dec 0.0 8.8 26.7 2.2
         
Annual 25.4 36.3 122.3 9.9
Winter 0.0 32.5 78.8 9.6
Spring 0.5 2.1 22.5 0.2
Summer 22.8 0.0 0.0 0.0
Fall 2.2 1.7 20.7 0.1

Snowfall Summary

Station: 117551 RUSHVILLE, IL

1971-2000 Averages

Element Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Snow (in) 5.9 4.4 2.0 0.6 0.0 0.0 0.0 0.0 0.0 0.0 1.0 4.2 18.1

Snowfall Extremes

Period of Record: 1890-2006

Month High (in) Year 1-Day Max (in) Date
Jan 26.5 1979 12.0 01-13-1979
Feb 21.0 1914 18.0 02-28-1900
Mar 34.0 1965 13.0 03-17-1965
Apr 18.0 1920 11.0 04-04-1920
May 0.0 - - -
Jun 0.0 - - -
Jul 0.0 - - -
Aug 0.0 - - -
Sep 0.0 - - -
Oct 4.0 1916 4.0 10-20-1916
Nov 8.4 1926 7.8 11-17-1926
Dec 22.0 1973 14.0 12-24-1915
Season (Jul-Jun) 50.6 1959-1960 18.0 02-28-1900

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 1.9 1.7 1.0 0.3
Feb 1.9 1.7 1.0 0.3
Mar 1.1 0.9 0.5 0.0
Apr 0.3 0.3 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 0.0 0.0 0.0 0.0
Nov 0.5 0.4 0.3 0.0
Dec 2.0 1.5 0.8 0.3
Annual 8.2 6.7 3.9 0.8

Growing Season Summary

Station: 117551 RUSHVILLE, 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 12 38 155 392 712 960 1121 1057 798 474 151 29 5703
45 4 15 87 267 558 810 968 903 648 332 83 12 4526
50 0 5 46 163 407 661 814 748 501 210 40 4 3472
55 0 1 21 86 268 512 660 594 359 116 16 1 2539
60 0 0 7 40 151 366 507 439 233 52 4 0 1734
50** 7 25 97 231 440 644 769 718 518 287 87 17 3714

**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 4/13 3/30 4/04 4/25 5/04 10/18 9/23 10/02 11/04 11/06
30 4/08 3/24 3/28 4/21 5/04 10/21 9/29 10/08 11/06 11/10
28 4/06 3/22 3/26 4/19 4/22 11/01 10/07 10/16 11/11 11/14
24 3/26 2/19 3/15 4/09 4/11 11/07 10/20 10/24 11/29 11/29
20 3/17 2/08 2/28 3/31 4/09 11/19 10/20 11/03 12/09 12/22
16 3/09 1/28 2/08 3/25 4/06 12/01 11/02 11/11 12/20 12/30

Length of Growing Season (Days)

Derived from 1971-2000 Averages

Temp °F Median Shortest 10% 90% Longest
32 188 156 167 204 215
30 197 165 181 211 228
28 208 183 190 219 232
24 226 195 209 250 270
20 249 213 223 278 295
16 270 221 238 297 307

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