Precipitation Summary
Station: 114957 LAWRENCEVILLE, IL
1971-2000 NCDC Normals
| Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prec. (in) | 2.73 | 2.68 | 4.18 | 4.24 | 5.19 | 4.27 | 4.45 | 3.66 | 3.12 | 3.20 | 4.20 | 3.42 | 45.34 |
Precipitation Extremes
Period of Record: 1962-2006
| Month | High (in) | Year | Low (in) | Year | 1-Day Max (in) |
Date |
|---|---|---|---|---|---|---|
| Jan | 7.04 | 1999 | 0.22 | 1986 | 2.56 | 01-31-1982 |
| Feb | 5.92 | 1999 | 0.32 | 1963 | 2.80 | 02-10-1965 |
| Mar | 10.53 | 1989 | 0.32 | 2001 | 3.86 | 03-30-1989 |
| Apr | 8.29 | 1984 | 1.02 | 1971 | 3.20 | 04-29-1996 |
| May | 14.82 | 1995 | 1.49 | 1991 | 4.32 | 05-18-1995 |
| Jun | 7.64 | 1964 | 0.37 | 1984 | 3.95 | 06-07-1990 |
| Jul | 13.10 | 1979 | 0.44 | 1974 | 3.57 | 07-02-1999 |
| Aug | 8.81 | 1977 | 0.57 | 1963 | 3.07 | 08-29-1994 |
| Sep | 7.17 | 1993 | 0.28 | 1963 | 3.77 | 09-02-1982 |
| Oct | 10.48 | 1983 | 0.45 | 1964 | 3.70 | 10-20-1985 |
| Nov | 10.12 | 1985 | 0.20 | 1999 | 2.62 | 11-14-1993 |
| Dec | 11.70 | 1982 | 0.68 | 1976 | 3.00 | 12-25-1982 |
| Annual | 56.64 | 1990 | 26.02 | 1988 | 4.32 | 05-18-1995 |
| Winter | 15.86 | 1999 | 3.02 | 1963 | 3.00 | 12-25-1982 |
| Spring | 20.94 | 1989 | 3.31 | 2001 | 4.32 | 05-18-1995 |
| Summer | 20.02 | 2000 | 6.21 | 1991 | 3.95 | 06-07-1990 |
| Fall | 18.94 | 1983 | 3.36 | 1963 | 3.77 | 09-02-1982 |
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 | 10.4 | 5.8 | 1.6 | 0.4 |
| Feb | 8.8 | 5.0 | 1.8 | 0.7 |
| Mar | 11.3 | 7.6 | 2.6 | 1.1 |
| Apr | 11.7 | 8.1 | 2.9 | 1.0 |
| May | 11.1 | 8.4 | 3.4 | 1.5 |
| Jun | 10.1 | 6.7 | 2.9 | 1.2 |
| Jul | 8.6 | 6.1 | 3.1 | 1.6 |
| Aug | 8.1 | 5.4 | 2.6 | 1.2 |
| Sep | 7.3 | 5.2 | 2.3 | 0.8 |
| Oct | 8.1 | 5.2 | 2.0 | 0.8 |
| Nov | 10.0 | 6.8 | 2.5 | 1.3 |
| Dec | 9.9 | 6.0 | 2.5 | 0.8 |
| Annual | 115.4 | 76.5 | 30.3 | 12.5 |
| Winter | 29.0 | 16.8 | 5.9 | 1.9 |
| Spring | 34.1 | 24.2 | 8.9 | 3.6 |
| Summer | 26.8 | 18.3 | 8.6 | 4.0 |
| Fall | 25.4 | 17.2 | 6.8 | 3.0 |
Temperature Summary
There are insufficient temperature data to produce the temperature summary.
Snowfall Summary
Station: 114957 LAWRENCEVILLE, IL
1971-2000 Averages
| Element | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snow (in) | 5.6 | 4.0 | 2.6 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.8 | 3.8 | 17.1 |
Snowfall Extremes
Period of Record: 1962-2006
| Month | High (in) | Year | 1-Day Max (in) | Date |
|---|---|---|---|---|
| Jan | 19.7 | 1977 | 8.9 | 01-17-1978 |
| Feb | 18.2 | 1993 | 9.5 | 02-12-1985 |
| Mar | 12.5 | 1996 | 11.0 | 03-20-1996 |
| Apr | 3.2 | 1971 | 2.0 | 04-08-1982 |
| May | 0.0 | – | – | – |
| Jun | 0.0 | – | – | – |
| Jul | 0.0 | – | – | – |
| Aug | 0.0 | – | – | – |
| Sep | 0.0 | – | – | – |
| Oct | 1.9 | 1993 | 1.5 | 10-30-1993 |
| Nov | 7.6 | 1975 | 7.2 | 11-27-1975 |
| Dec | 16.4 | 2000 | 12.0 | 12-20-1973 |
| Season (Jul-Jun) | 37.6 | 1977-1978 | 12.0 | 12-20-1973 |
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 | 3.1 | 1.2 | 0.6 | 0.2 |
| Feb | 3.1 | 1.2 | 0.6 | 0.2 |
| Mar | 1.7 | 0.8 | 0.3 | 0.1 |
| Apr | 0.1 | 0.1 | 0.0 | 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 | 0.0 | 0.0 | 0.0 |
| Nov | 0.7 | 0.2 | 0.1 | 0.0 |
| Dec | 2.5 | 1.2 | 0.7 | 0.2 |
| Annual | 13.2 | 5.6 | 2.5 | 0.7 |
Growing Season Summary
There are insufficient temperature data to produce the growing season summary.
Copyright 2007 Illinois State Water Survey
Last Modified: September 11, 2007