Frost history / Weare, NH
Weare, NH: frost dates by year
Last spring and first fall frost at NOAA station USC00278972, 1990 to 2003, measured from daily minimum temperatures.
Elevation 720 ft, 43.085, -71.738. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 14 | Oct 3 |
| Earliest | Apr 23 (1994) | Sep 20 (1993) |
| Latest | Jun 4 (2000) | Oct 19 (1990) |
| Trend | 5.9 days earlier per decade | 4.4 days later per decade |
| Years with data | 13 | 13 |
At 28°F (hard freeze) the median last spring date is Apr 25 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 |
|---|---|---|---|---|
| 2003 | Apr 25 | no data | Apr 25 | no data |
| 2002 | no data | Oct 9 | no data | Oct 15 |
| 2001 | May 7 | Oct 1 | May 7 | Oct 20 |
| 2000 | Jun 4 | Sep 29 | Apr 15 | Sep 29 |
| 1999 | May 14 | Oct 7 | Apr 16 | Oct 7 |
| 1998 | May 14 | Oct 6 | Apr 26 | Oct 6 |
| 1997 | May 27 | Oct 12 | Apr 16 | Oct 19 |
| 1996 | May 15 | Oct 4 | Apr 29 | Oct 4 |
| 1995 | May 7 | Sep 24 | Apr 25 | Nov 5 |
| 1994 | Apr 23 | Oct 3 | Apr 23 | Oct 12 |
| 1993 | Apr 29 | Sep 20 | Apr 29 | Oct 1 |
| 1992 | May 26 | Sep 24 | May 7 | Sep 24 |
| 1991 | May 19 | Sep 22 | Apr 20 | Sep 22 |
| 1990 | May 25 | Oct 19 | Apr 19 | 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.