Frost history / Mt Carmel, IL
Mt Carmel, IL: frost dates by year
Last spring and first fall frost at NOAA station USC00115888, 1977 to 2011, measured from daily minimum temperatures.
Elevation 430 ft, 38.411, -87.758. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 9 | Oct 23 |
| Earliest | Mar 25 (1981) | Oct 4 (1999) |
| Latest | May 1 (2005) | Nov 10 (1986) |
| Trend | 2.2 days later per decade | 1.7 days earlier per decade |
| Years with data | 24 | 25 |
At 28°F (hard freeze) the median last spring date is Mar 29 and the median first fall date is Nov 1.
The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.
Chart
Last spring frost (32°F)
First fall frost (32°F)
Dots are single years. The gray line is the median, the green line the fitted trend.
Year by year
| Year | Last spring 32°F | First fall 32°F | Last spring 28°F | First fall 28°F |
|---|---|---|---|---|
| 2011 | Mar 31 | no data | Mar 27 | no data |
| 2010 | Mar 26 | Oct 29 | Mar 7 | Nov 6 |
| 2009 | no data | Oct 18 | no data | Dec 4 |
| 2008 | Apr 29 | Oct 19 | Apr 15 | Oct 28 |
| 2007 | Apr 16 | Oct 29 | Apr 13 | Oct 29 |
| 2006 | Apr 9 | no data | Mar 26 | no data |
| 2005 | May 1 | Oct 27 | Mar 20 | Oct 27 |
| 2001 | no data | Oct 6 | no data | Oct 24 |
| 2000 | no data | Oct 6 | no data | Oct 8 |
| 1999 | no data | Oct 4 | no data | Oct 23 |
| 1998 | Apr 20 | Oct 23 | Mar 24 | Nov 8 |
| 1997 | no data | Oct 22 | no data | Oct 22 |
| 1996 | Apr 15 | no data | Apr 9 | no data |
| 1995 | Apr 6 | Nov 3 | Apr 6 | Nov 3 |
| 1994 | Apr 8 | Oct 27 | Apr 8 | Nov 23 |
| 1993 | Apr 3 | Oct 29 | Mar 19 | Nov 1 |
| 1992 | Apr 6 | Oct 19 | Mar 23 | Oct 19 |
| 1991 | Mar 31 | Oct 16 | Mar 30 | Nov 2 |
| 1990 | Apr 18 | Oct 26 | Apr 7 | Dec 5 |
| 1989 | Apr 11 | Oct 19 | Apr 11 | Oct 19 |
| 1988 | Apr 19 | Oct 12 | Mar 19 | Oct 13 |
| 1986 | no data | Nov 10 | no data | Nov 10 |
| 1985 | Apr 9 | no data | Apr 9 | no data |
| 1984 | Apr 1 | no data | Mar 13 | no data |
| 1983 | Apr 20 | Nov 5 | Apr 20 | Nov 12 |
| 1982 | Apr 10 | no data | Apr 10 | no data |
| 1981 | Mar 25 | Oct 24 | Mar 21 | Oct 24 |
| 1980 | Apr 16 | Oct 26 | Mar 22 | Oct 26 |
| 1979 | Apr 7 | Oct 14 | Apr 6 | Nov 11 |
| 1978 | Mar 26 | Nov 8 | Mar 18 | Dec 4 |
| 1977 | no data | Oct 13 | no data | Nov 12 |
"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991–2020 frost probabilities.