Frost history / Wellington 3 E, UT
Wellington 3 E, UT: frost dates by year
Last spring and first fall frost at NOAA station USC00429368, 2006 to 2025, measured from daily minimum temperatures.
Elevation 5,400 ft, 39.545, -110.686. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 29 | Sep 22 |
| Earliest | May 9 (2023) | Sep 7 (2010) |
| Latest | Jun 13 (2008) | Oct 11 (2022) |
| Trend | 9.2 days earlier per decade | 6.4 days later per decade |
| Years with data | 17 | 20 |
At 28°F (hard freeze) the median last spring date is May 21 and the median first fall date is Oct 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 | no data | Oct 5 | no data | Oct 17 |
| 2024 | May 26 | Oct 10 | May 22 | Oct 26 |
| 2023 | May 9 | Sep 24 | May 9 | Oct 14 |
| 2022 | Jun 1 | Oct 11 | May 22 | Oct 14 |
| 2021 | May 25 | Sep 22 | May 24 | Oct 16 |
| 2020 | Jun 9 | Sep 11 | May 27 | Sep 29 |
| 2019 | May 22 | Sep 18 | May 21 | Sep 30 |
| 2018 | no data | Sep 21 | no data | Oct 15 |
| 2017 | May 20 | Sep 23 | May 18 | Sep 25 |
| 2016 | May 27 | Sep 16 | May 11 | Oct 4 |
| 2015 | May 16 | Sep 19 | Apr 24 | Oct 28 |
| 2014 | May 18 | Oct 2 | May 18 | Oct 13 |
| 2013 | Jun 1 | Sep 28 | May 4 | Sep 28 |
| 2012 | May 29 | Oct 3 | May 28 | Oct 8 |
| 2011 | Jun 4 | Sep 22 | May 31 | Oct 7 |
| 2010 | May 31 | Sep 7 | May 25 | Oct 14 |
| 2009 | Jun 6 | Sep 22 | Apr 28 | Oct 1 |
| 2008 | Jun 13 | Sep 23 | May 13 | Oct 12 |
| 2007 | Jun 8 | Sep 19 | May 24 | Sep 24 |
| 2006 | no data | Sep 17 | 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.