Frost history / Rudyard 5SE, MI
Rudyard 5SE, MI: frost dates by year
Last spring and first fall frost at NOAA station USC00207188, 2011 to 2025, measured from daily minimum temperatures.
Elevation 667 ft, 46.191, -84.509. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 3 | Sep 18 |
| Earliest | May 19 (2014) | Aug 27 (2025) |
| Latest | Jun 22 (2021) | Oct 11 (2014) |
| Trend | 5.9 days later per decade | 4.6 days earlier per decade |
| Years with data | 12 | 14 |
At 28°F (hard freeze) the median last spring date is May 21 and the median first fall date is Oct 9.
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 | Jun 3 | Aug 27 | Jun 2 | Oct 8 |
| 2024 | Jun 11 | Oct 5 | Apr 26 | Oct 10 |
| 2023 | May 28 | Sep 19 | May 26 | Oct 12 |
| 2022 | Jun 4 | Sep 23 | May 24 | Sep 29 |
| 2021 | Jun 22 | no data | May 30 | no data |
| 2020 | Jun 14 | Sep 11 | May 31 | Sep 19 |
| 2019 | Jun 3 | Sep 9 | May 18 | Oct 5 |
| 2018 | no data | Sep 7 | no data | Oct 16 |
| 2017 | Jun 3 | Sep 30 | May 10 | Oct 16 |
| 2016 | May 20 | Oct 9 | May 18 | Oct 10 |
| 2015 | Jun 3 | Sep 30 | May 24 | Sep 30 |
| 2014 | May 19 | Oct 11 | May 18 | Oct 11 |
| 2013 | no data | Sep 17 | no data | Oct 20 |
| 2012 | Jun 13 | Sep 16 | May 17 | Sep 27 |
| 2011 | no data | Sep 6 | no data | Sep 17 |
"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.