Frost history / Richmond 4 Nnw, MI
Richmond 4 Nnw, MI: frost dates by year
Last spring and first fall frost at NOAA station USC00206982, 2002 to 2025, measured from daily minimum temperatures.
Elevation 765 ft, 42.878, -82.796. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 3 | Oct 17 |
| Earliest | Apr 14 (2007) | Sep 19 (2020) |
| Latest | May 25 (2013) | Nov 3 (2021) |
| Trend | 0.9 days later per decade | 0.7 days earlier per decade |
| Years with data | 23 | 22 |
At 28°F (hard freeze) the median last spring date is Apr 24 and the median first fall date is Oct 31.
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 | Oct 9 | Apr 17 | Nov 2 |
| 2024 | Apr 26 | Oct 10 | Apr 26 | Oct 27 |
| 2023 | May 18 | Oct 23 | Apr 26 | Oct 31 |
| 2022 | Apr 29 | Oct 8 | Apr 29 | Oct 21 |
| 2021 | May 10 | Nov 3 | Apr 23 | Nov 5 |
| 2020 | May 13 | Sep 19 | May 13 | Oct 16 |
| 2019 | Apr 29 | Oct 15 | Apr 2 | Nov 6 |
| 2018 | Apr 29 | Oct 16 | Apr 21 | Oct 16 |
| 2017 | May 9 | Oct 26 | Mar 24 | Nov 8 |
| 2016 | Apr 24 | Oct 26 | Apr 11 | Nov 12 |
| 2015 | May 23 | Oct 17 | Apr 24 | Oct 18 |
| 2014 | Apr 27 | Oct 12 | Apr 24 | Nov 2 |
| 2013 | May 25 | Oct 22 | Apr 21 | Nov 4 |
| 2012 | Apr 30 | Oct 8 | Apr 29 | Oct 8 |
| 2011 | Apr 30 | Oct 28 | Apr 2 | Oct 28 |
| 2010 | May 10 | Oct 22 | Apr 23 | Nov 1 |
| 2008 | May 25 | Oct 19 | May 1 | Oct 30 |
| 2007 | Apr 14 | Oct 28 | Apr 13 | Nov 1 |
| 2006 | Apr 27 | Oct 6 | Apr 25 | Oct 14 |
| 2005 | May 3 | Oct 19 | May 3 | Oct 28 |
| 2004 | May 3 | Oct 4 | May 3 | Nov 7 |
| 2003 | Apr 26 | no data | Apr 23 | no data |
| 2002 | May 20 | Oct 13 | May 20 | Oct 13 |
"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.