Frost history / Jay Peak, VT
Jay Peak, VT: frost dates by year
Last spring and first fall frost at NOAA station USC00434189, 1991 to 2011, measured from daily minimum temperatures.
Elevation 1,840 ft, 44.938, -72.502. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 19 | Sep 29 |
| Earliest | Apr 27 (1998) | Sep 19 (2008) |
| Latest | May 31 (2001) | Oct 26 (2011) |
| Trend | 4.2 days earlier per decade | 7.5 days later per decade |
| Years with data | 17 | 16 |
At 28°F (hard freeze) the median last spring date is Apr 30 and the median first fall date is Oct 9.
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 | May 7 | Oct 26 | Apr 23 | Oct 27 |
| 2010 | no data | Oct 3 | no data | Oct 20 |
| 2009 | May 27 | Sep 26 | May 27 | Oct 12 |
| 2008 | May 10 | Sep 19 | Apr 30 | Oct 9 |
| 2007 | May 17 | Oct 13 | Apr 25 | Oct 29 |
| 2006 | May 22 | no data | Apr 29 | no data |
| 2004 | May 8 | Oct 5 | May 5 | Oct 19 |
| 2003 | May 11 | Sep 26 | Apr 28 | Oct 19 |
| 2002 | no data | Sep 29 | no data | Oct 9 |
| 2001 | May 31 | Sep 30 | Apr 29 | Oct 8 |
| 2000 | May 30 | Sep 25 | May 30 | Sep 25 |
| 1999 | May 14 | Oct 4 | Apr 25 | Oct 5 |
| 1998 | Apr 27 | Oct 6 | Apr 27 | Oct 6 |
| 1997 | May 28 | Sep 23 | May 8 | Oct 17 |
| 1996 | May 29 | Oct 4 | Apr 28 | Oct 4 |
| 1995 | May 20 | no data | May 8 | no data |
| 1994 | May 28 | no data | May 14 | no data |
| 1993 | May 18 | Sep 21 | May 15 | Sep 30 |
| 1991 | May 19 | Sep 20 | May 19 | Sep 30 |
"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 to 2020 frost probabilities.