Frost history / N Stratford, NH
N Stratford, NH: frost dates by year
Last spring and first fall frost at NOAA station USC00276234, 1970 to 2019, measured from daily minimum temperatures.
Elevation 950 ft, 44.682, -71.586. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 23 | Sep 19 |
| Earliest | May 8 (2014) | Aug 29 (1982) |
| Latest | Jun 26 (1979) | Oct 6 (2011) |
| Trend | 3.3 days earlier per decade | 2.2 days later per decade |
| Years with data | 37 | 39 |
At 28°F (hard freeze) the median last spring date is May 13 and the median first fall date is Oct 7.
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 |
|---|---|---|---|---|
| 2019 | May 12 | no data | May 9 | no data |
| 2018 | May 19 | Sep 9 | May 13 | Oct 15 |
| 2017 | May 21 | Oct 1 | May 4 | Oct 17 |
| 2016 | May 17 | Sep 26 | May 17 | Oct 11 |
| 2015 | May 23 | Sep 26 | May 23 | Oct 4 |
| 2014 | May 8 | Sep 19 | May 8 | Sep 19 |
| 2013 | May 28 | Sep 17 | May 15 | Oct 21 |
| 2012 | May 18 | Sep 17 | May 8 | Oct 13 |
| 2011 | May 9 | Oct 6 | May 1 | Oct 7 |
| 2010 | May 17 | Sep 21 | May 13 | Oct 10 |
| 2009 | Jun 1 | Sep 20 | May 26 | Oct 12 |
| 2008 | May 29 | Sep 19 | May 2 | Oct 7 |
| 2007 | May 22 | Sep 17 | May 14 | Oct 17 |
| 2006 | May 9 | Sep 11 | May 8 | Oct 7 |
| 2005 | May 21 | Oct 1 | May 14 | Oct 21 |
| 2004 | May 31 | Sep 21 | May 8 | Oct 7 |
| 2002 | no data | Sep 29 | no data | Oct 8 |
| 2001 | no data | Sep 15 | no data | Oct 9 |
| 1996 | May 30 | Sep 24 | May 26 | Oct 4 |
| 1995 | May 17 | Sep 11 | May 9 | Sep 29 |
| 1993 | Jun 5 | Sep 20 | May 14 | Sep 20 |
| 1992 | Jun 16 | Sep 24 | May 25 | Sep 24 |
| 1991 | no data | Sep 13 | no data | Sep 30 |
| 1988 | Jun 11 | Sep 16 | May 8 | Sep 29 |
| 1987 | May 20 | Sep 4 | May 19 | Sep 27 |
| 1986 | no data | Aug 29 | no data | Oct 8 |
| 1985 | May 29 | Sep 13 | May 9 | Oct 17 |
| 1984 | May 19 | Sep 16 | May 19 | Sep 27 |
| 1983 | Jun 9 | no data | May 19 | no data |
| 1982 | May 22 | Aug 29 | May 22 | Oct 10 |
| 1981 | May 24 | Sep 10 | May 19 | Oct 5 |
| 1980 | May 28 | Sep 24 | May 28 | Sep 29 |
| 1979 | Jun 26 | Sep 20 | May 7 | Sep 20 |
| 1978 | May 23 | Sep 13 | May 8 | Sep 26 |
| 1977 | May 16 | Oct 5 | May 15 | Oct 8 |
| 1976 | Jun 13 | Aug 31 | May 9 | Oct 12 |
| 1975 | Jun 10 | Sep 15 | May 1 | Oct 5 |
| 1974 | May 21 | Sep 19 | May 20 | Sep 24 |
| 1973 | Jun 3 | Sep 21 | May 8 | Sep 21 |
| 1972 | May 26 | Sep 20 | May 13 | Oct 2 |
| 1970 | May 29 | Sep 3 | May 29 | Oct 20 |
"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.