E Milford, NH: frost dates by year

Last spring and first fall frost at NOAA station USC00272302, 2008 to 2025, measured from daily minimum temperatures.

Elevation 240 ft, 42.827, -71.626. Download the data (JSON) · NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 28	Oct 12
Earliest	Apr 17 (2015)	Sep 20 (2014)
Latest	May 19 (2023)	Oct 31 (2023)
Trend	2.6 days later per decade	2.2 days later per decade
Years with data	17	18

At 28°F (hard freeze) the median last spring date is Apr 18 and the median first fall date is Oct 20.

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
2025	Apr 21	Oct 10	Apr 18	Oct 10
2024	Apr 27	Oct 17	Apr 27	Oct 17
2023	May 19	Oct 31	May 19	Nov 2
2022	May 9	Oct 9	Apr 21	Oct 20
2021	Apr 22	Oct 24	Apr 5	Nov 4
2020	May 14	Sep 20	Apr 19	Oct 18
2019	Apr 29	Oct 5	Apr 6	Oct 6
2018	Apr 24	Oct 19	Apr 23	Oct 19
2017	May 9	Oct 13	Apr 9	Nov 9
2016	Apr 28	Oct 11	Apr 15	Oct 27
2015	Apr 17	Sep 27	Apr 8	Oct 18
2014	Apr 21	Sep 20	Apr 21	Nov 10
2013	May 15	Oct 21	Apr 22	Oct 25
2012	Apr 30	Oct 13	Apr 7	Oct 13
2011	Apr 22	Oct 24	Apr 16	Oct 29
2010	May 11	Oct 13	Mar 29	Nov 1
2009	Apr 21	Oct 11	Apr 20	Oct 15
2008	no data	Oct 8	no data	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 1991–2020 frost probabilities.