Frost history / Orr 3E, MN
Orr 3E, MN: frost dates by year
Last spring and first fall frost at NOAA station USC00216211, 2008 to 2025, measured from daily minimum temperatures.
Elevation 1,315 ft, 48.051, -92.764. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 2 | Sep 11 |
| Earliest | May 5 (2023) | Aug 30 (2009) |
| Latest | Jun 18 (2008) | Oct 18 (2021) |
| Trend | 13.3 days earlier per decade | 7.4 days later per decade |
| Years with data | 18 | 17 |
At 28°F (hard freeze) the median last spring date is May 24 and the median first fall date is Sep 29.
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 26 | Sep 7 | May 24 | Oct 8 |
| 2024 | May 15 | Sep 7 | Apr 26 | Oct 9 |
| 2023 | May 5 | Sep 13 | May 4 | Oct 10 |
| 2022 | May 24 | Sep 27 | May 23 | Sep 28 |
| 2021 | May 30 | Oct 18 | May 30 | Oct 21 |
| 2020 | Jun 14 | Sep 9 | May 14 | Sep 9 |
| 2019 | Jun 14 | Sep 28 | Jun 3 | Sep 28 |
| 2018 | May 21 | Sep 6 | May 21 | Sep 29 |
| 2017 | May 25 | Sep 8 | May 20 | Oct 6 |
| 2016 | Jun 9 | Sep 15 | May 18 | Oct 17 |
| 2015 | Jun 2 | Sep 29 | Jun 2 | Sep 29 |
| 2014 | May 24 | Sep 11 | May 18 | Sep 11 |
| 2013 | Jun 7 | Sep 16 | Jun 4 | Sep 16 |
| 2012 | Jun 2 | Sep 14 | May 31 | Sep 18 |
| 2011 | Jun 10 | Sep 5 | May 27 | Sep 15 |
| 2010 | Jun 2 | Sep 5 | May 16 | Sep 16 |
| 2009 | Jun 12 | Aug 30 | Jun 7 | Sep 30 |
| 2008 | Jun 18 | no data | May 29 | no data |
"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.