Frost history / St Albans Radio, VT
St Albans Radio, VT: frost dates by year
Last spring and first fall frost at NOAA station USC00437032, 1978 to 2010, measured from daily minimum temperatures.
Elevation 380 ft, 44.859, -73.091. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 3 | Oct 4 |
| Earliest | Apr 22 (1980) | Sep 18 (1978) |
| Latest | Jun 3 (1986) | Oct 29 (2001) |
| Trend | 2.3 days earlier per decade | 6.5 days later per decade |
| Years with data | 25 | 28 |
At 28°F (hard freeze) the median last spring date is Apr 23 and the median first fall date is Oct 11.
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 |
|---|---|---|---|---|
| 2010 | May 11 | no data | Mar 28 | no data |
| 2009 | no data | Oct 12 | no data | Oct 16 |
| 2008 | May 1 | Oct 18 | Apr 16 | Oct 23 |
| 2007 | May 6 | Oct 17 | Apr 12 | Oct 29 |
| 2006 | May 7 | Oct 21 | Apr 28 | Oct 22 |
| 2005 | no data | Oct 21 | no data | Nov 9 |
| 2001 | Apr 29 | Oct 29 | Apr 22 | Oct 31 |
| 2000 | Apr 26 | Sep 28 | Apr 18 | Sep 29 |
| 1999 | Apr 25 | Oct 4 | Apr 25 | Oct 19 |
| 1998 | Apr 28 | Oct 6 | Apr 28 | Oct 26 |
| 1997 | no data | Oct 2 | no data | Oct 23 |
| 1996 | Apr 27 | Oct 4 | Apr 13 | Oct 4 |
| 1995 | May 7 | Sep 29 | Apr 24 | Nov 9 |
| 1994 | May 3 | Oct 11 | Apr 23 | Oct 15 |
| 1993 | Apr 28 | Sep 30 | Apr 28 | Oct 10 |
| 1992 | no data | Sep 24 | no data | Oct 5 |
| 1991 | May 19 | Sep 29 | Apr 14 | Sep 30 |
| 1990 | Apr 22 | no data | Apr 18 | no data |
| 1989 | no data | Oct 10 | no data | Oct 10 |
| 1988 | Apr 23 | Sep 29 | Apr 23 | Oct 20 |
| 1987 | May 16 | Sep 27 | May 4 | Oct 11 |
| 1986 | Jun 3 | Oct 7 | May 3 | Oct 10 |
| 1985 | May 9 | Oct 21 | Apr 18 | Oct 29 |
| 1984 | May 17 | Sep 27 | Apr 22 | Oct 5 |
| 1983 | May 17 | Oct 9 | Apr 22 | Oct 10 |
| 1982 | Apr 30 | Oct 10 | Apr 29 | Oct 11 |
| 1981 | May 18 | Oct 1 | May 18 | Oct 1 |
| 1980 | Apr 22 | Sep 24 | Apr 19 | Sep 28 |
| 1979 | May 7 | Sep 20 | May 7 | Oct 11 |
| 1978 | May 2 | Sep 18 | May 1 | Sep 26 |
"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.