Precipitation Summary
Station: 117004 PRINCEVILLE 2W, IL
1971-2000 NCDC Normals
Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Prec. (in) | 1.95 | 1.72 | 3.06 | 3.72 | 4.58 | 3.92 | 3.91 | 3.72 | 3.39 | 2.84 | 2.98 | 2.45 | 38.24 |
Precipitation Extremes
Period of Record: 1905-2006
Month | High (in) | Year | Low (in) | Year | 1-Day Max (in) |
Date |
---|---|---|---|---|---|---|
Jan | 7.09 | 1999 | 0.11 | 1956 | 5.00 | 01-20-2000 |
Feb | 5.75 | 1997 | 0.00 | 1947 | 3.20 | 02-21-1997 |
Mar | 8.76 | 1984 | 0.16 | 1958 | 3.02 | 03-04-1985 |
Apr | 7.79 | 1950 | 0.80 | 1946 | 3.55 | 04-24-1950 |
May | 11.94 | 1995 | 0.37 | 1992 | 4.60 | 05-13-1999 |
Jun | 11.01 | 1990 | 0.58 | 1936 | 5.46 | 06-20-1964 |
Jul | 12.61 | 1992 | 0.30 | 1945 | 4.85 | 07-22-1951 |
Aug | 9.16 | 1997 | 0.53 | 1974 | 3.15 | 08-24-1989 |
Sep | 14.07 | 1970 | 0.00 | 1979 | 3.50 | 09-28-1999 |
Oct | 9.08 | 1941 | 0.01 | 1964 | 3.95 | 10-03-1986 |
Nov | 10.62 | 1985 | 0.16 | 1999 | 2.81 | 11-19-1985 |
Dec | 6.59 | 1982 | 0.19 | 1976 | 3.10 | 12-02-1982 |
Annual | 50.17 | 1970 | 19.70 | 1930 | 5.46 | 06-20-1964 |
Winter | 13.08 | 2000 | 1.02 | 1961 | 5.00 | 01-20-2000 |
Spring | 18.33 | 1984 | 3.85 | 2005 | 4.60 | 05-13-1999 |
Summer | 22.31 | 1993 | 3.39 | 1936 | 5.46 | 06-20-1964 |
Fall | 19.27 | 1970 | 2.77 | 1943 | 3.95 | 10-03-1986 |
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 | 6.7 | 4.2 | 1.3 | 0.5 |
Feb | 5.2 | 3.3 | 1.3 | 0.3 |
Mar | 8.6 | 6.2 | 2.0 | 0.8 |
Apr | 9.9 | 7.4 | 2.6 | 0.9 |
May | 11.2 | 8.0 | 2.7 | 1.1 |
Jun | 9.2 | 7.0 | 2.8 | 1.0 |
Jul | 9.0 | 6.7 | 2.6 | 1.0 |
Aug | 9.0 | 6.7 | 2.4 | 0.9 |
Sep | 7.8 | 5.6 | 2.2 | 0.9 |
Oct | 8.4 | 5.8 | 1.9 | 0.5 |
Nov | 8.6 | 6.0 | 2.2 | 0.7 |
Dec | 7.3 | 5.3 | 1.6 | 0.7 |
Annual | 100.8 | 72.1 | 25.8 | 9.2 |
Winter | 19.1 | 12.8 | 4.3 | 1.5 |
Spring | 29.7 | 21.5 | 7.4 | 2.8 |
Summer | 27.1 | 20.4 | 7.7 | 2.9 |
Fall | 24.8 | 17.4 | 6.3 | 2.0 |
Temperature Summary
Station 117004 PRINCEVILLE 2W, IL
1971-2000 NCDC Normals
Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
High °F | 30.4 | 36.7 | 49.7 | 63.2 | 73.4 | 81.8 | 84.9 | 82.5 | 76.1 | 64.7 | 49.2 | 35.8 | 60.7 |
Low °F | 9.5 | 14.8 | 25.5 | 36.6 | 47.5 | 57.3 | 60.6 | 58.5 | 49.4 | 38.5 | 27.0 | 16.0 | 36.8 |
Mean °F | 20.0 | 25.8 | 37.6 | 49.9 | 60.5 | 69.6 | 72.8 | 70.5 | 62.8 | 51.6 | 38.1 | 25.9 | 48.8 |
HDD | 1396 | 1099 | 849 | 463 | 203 | 32 | 10 | 35 | 137 | 427 | 807 | 1212 | 6670 |
CDD | 0 | 0 | 0 | 8 | 62 | 168 | 250 | 205 | 70 | 12 | 0 | 0 | 775 |
HDD – heating degree days (base 65F); CDD – cooling degree days (base 65F)
Temperature Extremes
Period of Record: 1905-2006
Month | High Mean °F |
Year | Low Mean °F |
Year | 1-Day Max °F |
Date | 1-Day Min °F |
Date |
---|---|---|---|---|---|---|---|---|
Jan | 35.1 | 2006 | 7.2 | 1979 | 65 | 01-05-1997 | -26 | 01-21-1984 |
Feb | 38.0 | 1998 | 12.6 | 1979 | 72 | 02-27-1996 | -27 | 02-13-1905 |
Mar | 46.2 | 1973 | 28.0 | 1965 | 87 | 03-30-1986 | -8 | 03-04-2002 |
Apr | 58.3 | 1977 | 43.7 | 1993 | 93 | 04-25-1986 | 5 | 04-07-1982 |
May | 68.9 | 1977 | 55.4 | 1995 | 95 | 05-30-2006 | 22 | 05-10-1966 |
Jun | 76.3 | 1971 | 62.9 | 1982 | 101 | 06-26-1988 | 35 | 06-01-1993 |
Jul | 77.8 | 1980 | 68.8 | 1996 | 104 | 07-28-1983 | 44 | 07-05-1979 |
Aug | 77.0 | 1983 | 64.7 | 1992 | 105 | 08-02-1988 | 36 | 08-28-1986 |
Sep | 70.0 | 1971 | 57.5 | 1993 | 99 | 09-09-1983 | 26 | 09-23-1983 |
Oct | 62.2 | 1971 | 44.6 | 1987 | 92 | 10-04-2006 | 12 | 10-30-1988 |
Nov | 49.9 | 2001 | 30.2 | 1995 | 82 | 11-09-1999 | -3 | 11-26-1977 |
Dec | 36.7 | 1965 | 11.1 | 1983 | 70 | 12-29-1984 | -26 | 12-24-1983 |
Annual | 53.2 | 1998 | 45.5 | 1996 | 105 | 08-02-1988 | -27 | 02-13-1905 |
Winter | 32.1 | 1983 | 14.8 | 1979 | 72 | 02-27-1996 | -27 | 02-13-1905 |
Spring | 57.2 | 1977 | 43.0 | 1996 | 95 | 05-30-1906 | -8 | 03-04-1902 |
Summer | 75.4 | 1983 | 67.0 | 1992 | 105 | 08-02-1988 | 35 | 06-01-1993 |
Fall | 58.1 | 1971 | 46.7 | 1995 | 99 | 09-09-1983 | -3 | 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 | 16.6 | 30.0 | 7.7 |
Feb | 0.0 | 10.6 | 25.4 | 4.4 |
Mar | 0.0 | 3.2 | 22.2 | 0.3 |
Apr | 0.1 | 0.1 | 9.9 | 0.0 |
May | 0.6 | 0.0 | 0.8 | 0.0 |
Jun | 4.0 | 0.0 | 0.0 | 0.0 |
Jul | 7.8 | 0.0 | 0.0 | 0.0 |
Aug | 5.2 | 0.0 | 0.0 | 0.0 |
Sep | 1.9 | 0.0 | 0.8 | 0.0 |
Oct | 0.0 | 0.0 | 8.1 | 0.0 |
Nov | 0.0 | 2.0 | 20.1 | 0.2 |
Dec | 0.0 | 10.8 | 28.6 | 4.1 |
Annual | 19.6 | 43.3 | 145.9 | 16.8 |
Winter | 0.0 | 38.0 | 84.0 | 16.3 |
Spring | 0.7 | 3.4 | 33.0 | 0.3 |
Summer | 16.9 | 0.0 | 0.0 | 0.0 |
Fall | 2.0 | 2.0 | 29.0 | 0.2 |
Snowfall Summary
Station: 117004 PRINCEVILLE 2W, IL
1971-2000 Averages
Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Snow (in) | 6.5 | 5.5 | 2.5 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 2.0 | 6.3 | 23.3 |
Snowfall Extremes
Period of Record: 1905-2006
Month | High (in) | Year | 1-Day Max (in) | Date |
---|---|---|---|---|
Jan | 24.0 | 1982 | 8.0 | 01-31-2002 |
Feb | 16.3 | 1989 | 8.0 | 02-11-1988 |
Mar | 13.2 | 1960 | 6.0 | 03-25-1957 |
Apr | 9.0 | 1970 | 8.0 | 04-01-1970 |
May | 0.0 | – | – | – |
Jun | 0.0 | – | – | – |
Jul | 0.0 | – | – | – |
Aug | 0.0 | – | – | – |
Sep | 0.0 | – | – | – |
Oct | 3.5 | 1967 | 3.5 | 10-27-1967 |
Nov | 13.5 | 1975 | 10.0 | 11-27-1975 |
Dec | 21.7 | 2000 | 10.4 | 12-01-2006 |
Season (Jul-Jun) | 44.3 | 1956-1957 | 10.4 | 12-01-2006 |
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 | 2.4 | 1.9 | 1.2 | 0.4 |
Feb | 2.4 | 1.9 | 1.2 | 0.4 |
Mar | 1.3 | 0.9 | 0.5 | 0.1 |
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 | 1.1 | 0.8 | 0.4 | 0.1 |
Dec | 2.8 | 2.2 | 1.5 | 0.4 |
Annual | 10.8 | 8.2 | 5.1 | 1.2 |
Growing Season Summary
Station: 117004 PRINCEVILLE 2W, 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 | 5 | 21 | 114 | 325 | 642 | 888 | 1026 | 958 | 708 | 394 | 113 | 16 | 5139 |
45 | 1 | 7 | 63 | 211 | 489 | 738 | 872 | 803 | 560 | 263 | 60 | 6 | 4018 |
50 | 0 | 1 | 33 | 122 | 343 | 588 | 717 | 649 | 415 | 158 | 28 | 2 | 3017 |
55 | 0 | 0 | 13 | 61 | 215 | 439 | 563 | 495 | 280 | 83 | 10 | 0 | 2133 |
60 | 0 | 0 | 4 | 27 | 117 | 297 | 409 | 343 | 169 | 35 | 2 | 0 | 1385 |
50** | 4 | 16 | 83 | 214 | 403 | 584 | 685 | 633 | 456 | 253 | 71 | 10 | 3369 |
**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 | 4/27 | 3/28 | 4/12 | 5/13 | 5/29 | 10/05 | 9/19 | 9/22 | 10/26 | 11/04 |
30 | 4/22 | 3/26 | 4/07 | 5/08 | 5/10 | 10/07 | 9/19 | 9/23 | 11/05 | 11/13 |
28 | 4/13 | 3/25 | 3/30 | 4/29 | 5/08 | 10/12 | 9/21 | 9/27 | 11/06 | 11/13 |
24 | 4/05 | 2/22 | 3/21 | 4/21 | 5/08 | 11/03 | 10/02 | 10/13 | 11/16 | 11/20 |
20 | 3/29 | 2/22 | 3/15 | 4/16 | 4/22 | 11/10 | 10/20 | 10/23 | 11/30 | 1/01 |
16 | 3/15 | 2/07 | 2/19 | 4/09 | 4/11 | 11/17 | 10/24 | 11/02 | 12/06 | 1/01 |
Length of Growing Season (Days)
Derived from 1971-2000 Averages
Temp °F | Median | Shortest | 10% | 90% | Longest |
---|---|---|---|---|---|
32 | 160 | 124 | 135 | 192 | 204 |
30 | 170 | 135 | 148 | 209 | 214 |
28 | 180 | 138 | 153 | 212 | 216 |
24 | 211 | 169 | 182 | 236 | 256 |
20 | 221 | 190 | 201 | 257 | 293 |
16 | 253 | 205 | 219 | 279 | 294 |
Copyright 2007 Illinois State Water Survey
Last Modified: September 11, 2007