Frost history / Mt Sinai, NY
Mt Sinai, NY: frost dates by year
Last spring and first fall frost at NOAA station USC00305606, 2006 to 2024, measured from daily minimum temperatures.
Elevation 50 ft, 40.933, -73.019. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 10 | Nov 7 |
| Earliest | Mar 24 (2017) | Oct 31 (2011) |
| Latest | May 1 (2008) | Nov 19 (2020) |
| Trend | 6.2 days earlier per decade | 5.2 days later per decade |
| Years with data | 12 | 14 |
At 28°F (hard freeze) the median last spring date is Mar 31 and the median first fall date is Nov 19.
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 | no data | Nov 4 | no data | Dec 1 |
| 2023 | no data | Nov 13 | no data | Nov 26 |
| 2020 | Apr 23 | Nov 19 | Apr 23 | Dec 9 |
| 2019 | Mar 29 | Nov 4 | Mar 29 | Nov 9 |
| 2018 | Apr 11 | Nov 15 | Apr 11 | Nov 22 |
| 2017 | Mar 24 | Nov 11 | Mar 24 | Nov 11 |
| 2016 | Apr 16 | Nov 8 | Apr 9 | Dec 10 |
| 2015 | Apr 5 | Nov 9 | Apr 2 | Nov 24 |
| 2014 | Apr 21 | Nov 10 | Mar 25 | Nov 16 |
| 2013 | Apr 7 | Nov 5 | Apr 4 | Nov 13 |
| 2012 | Mar 28 | Nov 6 | Mar 27 | Nov 27 |
| 2011 | Apr 10 | Oct 31 | Mar 30 | Nov 6 |
| 2010 | no data | Nov 3 | no data | Nov 3 |
| 2008 | May 1 | no data | Apr 3 | no data |
| 2006 | Apr 11 | Nov 4 | Mar 29 | Nov 5 |
"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.