Precipitation Summary
Station: 116579 PANA 3 E, IL
1971-2000 NCDC Normals
| Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prec. (in) | 2.32 | 2.23 | 3.57 | 3.87 | 4.15 | 4.46 | 3.96 | 3.01 | 3.06 | 3.00 | 3.80 | 3.14 | 40.57 |
Precipitation Extremes
Period of Record: 1890-2006
| Month | High (in) | Year | Low (in) | Year | 1-Day Max (in) |
Date |
|---|---|---|---|---|---|---|
| Jan | 10.46 | 1890 | 0.00 | 1891 | 5.25 | 01-01-1890 |
| Feb | 5.87 | 1908 | 0.11 | 1947 | 2.25 | 02-19-1892 |
| Mar | 8.64 | 1938 | 0.40 | 1910 | 3.00 | 03-10-1890 |
| Apr | 11.99 | 1892 | 0.81 | 1971 | 7.00 | 04-04-1892 |
| May | 11.48 | 2002 | 0.64 | 1934 | 4.24 | 05-09-1918 |
| Jun | 14.46 | 1957 | 0.42 | 1959 | 7.85 | 06-28-1957 |
| Jul | 8.97 | 1958 | 0.39 | 1936 | 3.39 | 07-16-1900 |
| Aug | 11.72 | 1939 | 0.18 | 1971 | 4.63 | 08-15-1946 |
| Sep | 11.53 | 1993 | 0.04 | 2004 | 5.90 | 09-17-1969 |
| Oct | 9.06 | 1941 | 0.13 | 1908 | 4.68 | 10-05-2000 |
| Nov | 10.09 | 1891 | 0.10 | 1904 | 4.52 | 11-18-2003 |
| Dec | 9.33 | 1971 | 0.26 | 1955 | 3.04 | 12-07-1966 |
| Annual | 57.94 | 1892 | 23.11 | 1914 | 7.85 | 06-28-1957 |
| Winter | 18.90 | 1950 | 1.64 | 1891 | 5.25 | 01-01-1890 |
| Spring | 24.88 | 1892 | 3.47 | 1914 | 7.00 | 04-04-1892 |
| Summer | 22.98 | 1957 | 3.48 | 1893 | 7.85 | 06-28-1957 |
| Fall | 20.45 | 1993 | 3.06 | 1939 | 5.90 | 09-17-1969 |
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 | 9.7 | 5.2 | 1.4 | 0.4 |
| Feb | 9.2 | 5.2 | 1.6 | 0.5 |
| Mar | 11.7 | 7.7 | 2.5 | 0.7 |
| Apr | 12.7 | 7.6 | 2.5 | 0.7 |
| May | 11.4 | 7.1 | 2.8 | 1.0 |
| Jun | 10.6 | 6.6 | 3.1 | 1.4 |
| Jul | 9.3 | 6.5 | 2.7 | 1.3 |
| Aug | 8.8 | 5.5 | 2.1 | 0.8 |
| Sep | 8.1 | 5.3 | 2.1 | 0.9 |
| Oct | 9.5 | 5.4 | 1.7 | 0.8 |
| Nov | 11.0 | 7.2 | 2.6 | 0.8 |
| Dec | 10.8 | 5.8 | 2.1 | 0.9 |
| Annual | 122.9 | 75.2 | 27.2 | 10.2 |
| Winter | 29.7 | 16.3 | 5.1 | 1.7 |
| Spring | 35.9 | 22.4 | 7.7 | 2.4 |
| Summer | 28.7 | 18.6 | 8.0 | 3.6 |
| Fall | 28.6 | 17.9 | 6.4 | 2.4 |
Temperature Summary
Station 116579 PANA 3 E, IL
1971-2000 NCDC Normals
| Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 34.4 | 40.2 | 51.6 | 63.8 | 74.0 | 83.7 | 87.8 | 85.9 | 79.4 | 67.6 | 52.2 | 39.7 | 63.4 |
| Low °F | 15.9 | 20.5 | 30.7 | 41.6 | 51.8 | 61.3 | 64.9 | 62.6 | 54.0 | 43.1 | 32.0 | 21.9 | 41.7 |
| Mean °F | 25.2 | 30.4 | 41.2 | 52.7 | 62.9 | 72.5 | 76.4 | 74.3 | 66.7 | 55.4 | 42.1 | 30.8 | 52.6 |
| HDD | 1235 | 971 | 740 | 374 | 152 | 11 | 0 | 7 | 70 | 314 | 688 | 1060 | 5622 |
| CDD | 0 | 0 | 0 | 5 | 87 | 237 | 351 | 295 | 120 | 14 | 0 | 0 | 1109 |
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 | 39.8 | 1933 | 12.4 | 1977 | 74 | 01-25-1950 | -25 | 01-07-1912 |
| Feb | 41.3 | 1930 | 19.2 | 1978 | 76 | 02-24-1930 | -24 | 02-13-1905 |
| Mar | 55.2 | 1946 | 27.6 | 1960 | 88 | 03-24-1929 | -5 | 03-05-1960 |
| Apr | 60.5 | 1925 | 44.0 | 1907 | 91 | 04-11-1930 | 17 | 04-05-1920 |
| May | 71.5 | 1991 | 57.1 | 1907 | 98 | 05-16-1900 | 26 | 05-01-1903 |
| Jun | 81.4 | 1890 | 64.8 | 1903 | 106 | 06-26-1954 | 35 | 06-12-1903 |
| Jul | 85.0 | 1936 | 72.3 | 1924 | 115 | 07-14-1954 | 45 | 07-15-1930 |
| Aug | 83.0 | 1947 | 68.9 | 1915 | 108 | 08-04-1918 | 41 | 08-28-1986 |
| Sep | 75.6 | 1925 | 61.5 | 1974 | 105 | 09-05-1954 | 26 | 09-30-1899 |
| Oct | 64.8 | 1947 | 47.9 | 1925 | 95 | 10-03-1922 | 17 | 10-30-1925 |
| Nov | 52.0 | 1931 | 36.0 | 1976 | 84 | 11-01-1950 | -3 | 11-30-1929 |
| Dec | 42.3 | 1923 | 18.4 | 2000 | 87 | 12-11-1902 | -20 | 12-22-1989 |
| Annual | 57.7 | 1890 | 47.3 | 1912 | 115 | 07-14-1954 | -25 | 01-07-1912 |
| Winter | 39.8 | 1932 | 22.0 | 1978 | 87 | 12-11-1902 | -25 | 01-07-1912 |
| Spring | 59.2 | 1991 | 48.0 | 1960 | 98 | 05-16-1900 | -5 | 03-05-1960 |
| Summer | 80.7 | 1893 | 70.7 | 1927 | 115 | 07-14-1954 | 35 | 06-12-1903 |
| Fall | 62.1 | 1931 | 50.4 | 1976 | 105 | 09-05-1954 | -3 | 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 | 12.6 | 27.7 | 2.9 |
| Feb | 0.0 | 7.2 | 21.8 | 1.5 |
| Mar | 0.0 | 1.4 | 15.9 | 0.1 |
| Apr | 0.0 | 0.0 | 4.2 | 0.0 |
| May | 0.7 | 0.0 | 0.1 | 0.0 |
| Jun | 5.8 | 0.0 | 0.0 | 0.0 |
| Jul | 10.7 | 0.0 | 0.0 | 0.0 |
| Aug | 7.0 | 0.0 | 0.0 | 0.0 |
| Sep | 2.6 | 0.0 | 0.2 | 0.0 |
| Oct | 0.0 | 0.0 | 3.3 | 0.0 |
| Nov | 0.0 | 1.0 | 13.5 | 0.0 |
| Dec | 0.0 | 7.2 | 24.3 | 1.6 |
| Annual | 27.1 | 28.9 | 109.6 | 6.0 |
| Winter | 0.0 | 26.9 | 73.8 | 5.9 |
| Spring | 0.8 | 1.4 | 20.2 | 0.1 |
| Summer | 23.5 | 0.0 | 0.0 | 0.0 |
| Fall | 2.7 | 1.0 | 16.7 | 0.0 |
Snowfall Summary
Station: 116579 PANA 3 E, IL
1971-2000 Averages
| Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow (in) | 7.4 | 4.8 | 4.2 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 1.8 | 5.6 | 24.7 |
Snowfall Extremes
Period of Record: 1890-2006
| Month | High (in) | Year | 1-Day Max (in) | Date |
|---|---|---|---|---|
| Jan | 26.8 | 1979 | 10.5 | 01-31-1982 |
| Feb | 16.5 | 1964 | 11.0 | 02-28-1984 |
| Mar | 23.0 | 1978 | 11.1 | 03-08-1978 |
| Apr | 8.0 | 1980 | 6.0 | 04-06-1994 |
| May | 2.5 | 1929 | 2.5 | 05-02-1929 |
| Jun | 0.0 | – | – | – |
| Jul | 0.0 | – | – | – |
| Aug | 0.0 | – | – | – |
| Sep | 0.0 | – | – | – |
| Oct | 2.5 | 1989 | 2.5 | 10-20-1989 |
| Nov | 12.5 | 1951 | 10.5 | 11-06-1951 |
| Dec | 27.7 | 1973 | 10.0 | 12-20-1973 |
| Season (Jul-Jun) | 61.2 | 1977-1978 | 11.1 | 03-08-1978 |
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 | 3.7 | 1.8 | 0.8 | 0.2 |
| Feb | 3.7 | 1.8 | 0.8 | 0.2 |
| Mar | 2.1 | 1.4 | 0.8 | 0.3 |
| Apr | 0.4 | 0.2 | 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 | 0.1 | 0.1 | 0.0 | 0.0 |
| Nov | 0.9 | 0.6 | 0.4 | 0.1 |
| Dec | 3.7 | 1.9 | 1.1 | 0.3 |
| Annual | 15.9 | 8.4 | 4.8 | 1.2 |
Growing Season Summary
Station: 116579 PANA 3 E, 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 | 18 | 49 | 188 | 433 | 745 | 987 | 1136 | 1065 | 822 | 502 | 190 | 44 | 6176 |
| 45 | 5 | 20 | 109 | 300 | 590 | 837 | 981 | 910 | 672 | 357 | 110 | 20 | 4913 |
| 50 | 1 | 7 | 58 | 187 | 438 | 687 | 826 | 755 | 523 | 229 | 57 | 8 | 3780 |
| 55 | 0 | 1 | 27 | 102 | 294 | 537 | 671 | 600 | 379 | 130 | 24 | 2 | 2773 |
| 60 | 0 | 0 | 10 | 46 | 171 | 388 | 516 | 446 | 248 | 60 | 7 | 0 | 1896 |
| 50** | 10 | 30 | 114 | 261 | 467 | 666 | 781 | 726 | 535 | 303 | 105 | 23 | 4019 |
**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 | 4/12 | 3/25 | 3/31 | 5/03 | 5/08 | 10/17 | 9/21 | 9/27 | 11/05 | 11/12 |
| 30 | 4/08 | 3/23 | 3/24 | 4/19 | 4/29 | 10/20 | 9/22 | 10/02 | 11/11 | 11/24 |
| 28 | 4/06 | 3/18 | 3/23 | 4/17 | 4/23 | 11/03 | 9/22 | 10/10 | 11/14 | 11/28 |
| 24 | 3/26 | 3/02 | 3/14 | 4/11 | 4/18 | 11/11 | 10/11 | 10/21 | 11/29 | 12/11 |
| 20 | 3/15 | 2/14 | 2/28 | 3/25 | 4/06 | 11/24 | 11/03 | 11/07 | 12/09 | 12/22 |
| 16 | 3/04 | 1/15 | 2/09 | 3/18 | 3/25 | 12/07 | 11/02 | 11/19 | 12/21 | 12/22 |
Length of Growing Season (Days)
Derived from 1971-2000 Averages
| Temp °F | Median | Shortest | 10% | 90% | Longest |
|---|---|---|---|---|---|
| 32 | 183 | 136 | 167 | 213 | 219 |
| 30 | 197 | 170 | 176 | 221 | 244 |
| 28 | 210 | 171 | 188 | 226 | 255 |
| 24 | 227 | 191 | 206 | 252 | 261 |
| 20 | 253 | 221 | 230 | 278 | 287 |
| 16 | 284 | 237 | 253 | 302 | 340 |
Copyright 2007 Illinois State Water Survey
Last Modified: September 11, 2007