Frost history / Norwood Mem Ap, MA
Norwood Mem Ap, MA: frost dates by year
Last spring and first fall frost at NOAA station USW00054704, 1998 to 2024, measured from daily minimum temperatures.
Elevation 50 ft, 42.191, -71.174. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 10 | Oct 6 |
| Earliest | Apr 3 (2017) | Sep 12 (2006) |
| Latest | May 29 (2014) | Nov 1 (2023) |
| Trend | 7.7 days earlier per decade | 5.9 days later per decade |
| Years with data | 25 | 27 |
At 28°F (hard freeze) the median last spring date is Apr 16 and the median first fall date is Oct 17.
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 |
|---|---|---|---|---|
| 2024 | Apr 26 | Oct 12 | Mar 22 | Oct 17 |
| 2023 | May 18 | Nov 1 | Apr 9 | Nov 2 |
| 2022 | May 1 | Oct 9 | Apr 18 | Oct 30 |
| 2021 | Apr 4 | Oct 24 | Apr 4 | Nov 4 |
| 2020 | May 14 | Sep 20 | Apr 23 | Sep 22 |
| 2019 | Apr 11 | Oct 5 | Apr 2 | Nov 2 |
| 2018 | Apr 23 | Oct 18 | Apr 11 | Oct 19 |
| 2017 | Apr 3 | Oct 13 | Mar 26 | Nov 8 |
| 2016 | May 10 | Sep 26 | Apr 15 | Oct 11 |
| 2015 | May 2 | Sep 27 | Apr 2 | Oct 18 |
| 2014 | May 29 | Sep 19 | Apr 18 | Oct 12 |
| 2013 | May 15 | Oct 13 | Apr 7 | Oct 25 |
| 2012 | Apr 30 | Oct 12 | Apr 30 | Oct 13 |
| 2011 | May 2 | Oct 28 | Apr 16 | Oct 31 |
| 2010 | no data | Oct 10 | no data | Oct 23 |
| 2009 | Apr 20 | Sep 20 | Apr 16 | Oct 12 |
| 2008 | May 14 | Oct 7 | May 1 | Oct 23 |
| 2007 | May 14 | Sep 18 | Apr 11 | Oct 29 |
| 2006 | May 1 | Sep 12 | Apr 30 | Oct 14 |
| 2005 | May 13 | Sep 25 | May 13 | Nov 9 |
| 2004 | Apr 17 | Oct 5 | Mar 24 | Oct 6 |
| 2003 | May 18 | Oct 3 | May 18 | Oct 6 |
| 2002 | May 21 | Oct 9 | Apr 27 | Oct 14 |
| 2001 | May 14 | Oct 7 | May 8 | Oct 8 |
| 2000 | May 16 | Sep 29 | Apr 14 | Sep 29 |
| 1999 | May 16 | Oct 6 | May 1 | Oct 7 |
| 1998 | no data | Sep 24 | no data | Oct 7 |
"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.