Frost history / Northport 2W, MI
Northport 2W, MI: frost dates by year
Last spring and first fall frost at NOAA station USC00206007, 2002 to 2025, measured from daily minimum temperatures.
Elevation 746 ft, 45.132, -85.647. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 10 | Oct 29 |
| Earliest | Apr 26 (2024) | Oct 6 (2003) |
| Latest | May 28 (2008) | Nov 20 (2016) |
| Trend | 0.7 days earlier per decade | 7.8 days later per decade |
| Years with data | 23 | 24 |
At 28°F (hard freeze) the median last spring date is Apr 29 and the median first fall date is Nov 10.
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 | May 9 | Nov 2 | Apr 30 | Nov 18 |
| 2024 | Apr 26 | Nov 2 | Apr 25 | Nov 30 |
| 2023 | May 4 | Oct 30 | Apr 27 | Nov 14 |
| 2022 | May 24 | Nov 8 | Apr 28 | Nov 13 |
| 2021 | May 9 | Nov 4 | Apr 26 | Nov 21 |
| 2020 | May 13 | Oct 31 | May 13 | Oct 31 |
| 2019 | May 11 | Oct 26 | May 8 | Nov 7 |
| 2018 | May 11 | Oct 25 | Apr 29 | Nov 10 |
| 2017 | May 9 | Nov 4 | May 9 | Nov 10 |
| 2016 | May 9 | Nov 20 | Apr 23 | Nov 20 |
| 2015 | May 20 | Nov 10 | Apr 24 | Nov 22 |
| 2014 | May 17 | Oct 19 | Apr 27 | Nov 2 |
| 2013 | May 12 | Oct 29 | Apr 21 | Oct 30 |
| 2012 | Apr 29 | Oct 16 | Apr 29 | Nov 6 |
| 2011 | May 4 | Oct 22 | May 4 | Oct 28 |
| 2010 | May 10 | Nov 1 | May 10 | Nov 20 |
| 2009 | May 11 | Oct 14 | May 11 | Nov 6 |
| 2008 | May 28 | Oct 22 | Apr 15 | Oct 30 |
| 2007 | May 13 | Oct 25 | Apr 15 | Nov 22 |
| 2006 | May 7 | Oct 12 | May 6 | Oct 26 |
| 2005 | May 17 | Oct 28 | May 4 | Nov 17 |
| 2004 | May 4 | Nov 9 | Apr 27 | Nov 12 |
| 2003 | May 3 | Oct 6 | May 3 | Nov 7 |
| 2002 | no data | Oct 14 | no data | Oct 29 |
"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.