Frost history / Salina 24 E, UT
Salina 24 E, UT: frost dates by year
Last spring and first fall frost at NOAA station USC00427559, 1986 to 2025, measured from daily minimum temperatures.
Elevation 7,560 ft, 38.913, -111.416. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 1 | Sep 25 |
| Earliest | May 6 (2023) | Sep 2 (2008) |
| Latest | Jul 22 (2001) | Oct 23 (2015) |
| Trend | 0.8 days earlier per decade | 2.4 days later per decade |
| Years with data | 33 | 36 |
At 28°F (hard freeze) the median last spring date is May 15 and the median first fall date is Oct 5.
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 19 | Oct 5 | May 19 | Oct 17 |
| 2024 | May 24 | Oct 19 | May 22 | Oct 30 |
| 2023 | May 6 | Oct 11 | May 5 | Oct 12 |
| 2022 | Jun 1 | Oct 22 | May 19 | Oct 22 |
| 2021 | Jun 9 | Sep 28 | May 22 | Sep 28 |
| 2020 | Jun 29 | Sep 7 | May 18 | Sep 8 |
| 2019 | Jun 21 | Sep 11 | May 21 | Oct 4 |
| 2018 | no data | Oct 5 | no data | Oct 13 |
| 2017 | May 21 | no data | May 17 | no data |
| 2016 | no data | Sep 14 | no data | Oct 3 |
| 2015 | May 23 | Oct 23 | May 15 | Nov 3 |
| 2014 | May 14 | Oct 1 | May 13 | Oct 1 |
| 2013 | May 17 | Sep 24 | May 2 | Sep 27 |
| 2012 | Jun 11 | Oct 6 | May 28 | Oct 6 |
| 2011 | Jun 3 | Oct 5 | May 30 | Oct 7 |
| 2010 | Jun 16 | Sep 9 | May 24 | Oct 24 |
| 2009 | May 8 | Sep 22 | Apr 26 | Sep 30 |
| 2008 | Jun 12 | Sep 2 | May 24 | Sep 2 |
| 2007 | Jun 7 | Sep 24 | May 5 | Sep 25 |
| 2006 | no data | Sep 16 | no data | Sep 18 |
| 2005 | May 16 | Oct 5 | Apr 20 | Oct 5 |
| 2003 | no data | Sep 11 | no data | Sep 16 |
| 2001 | Jul 22 | Sep 8 | Jul 16 | Sep 10 |
| 2000 | May 17 | Sep 24 | May 15 | Sep 24 |
| 1999 | Jun 7 | Sep 28 | May 17 | Sep 28 |
| 1998 | Jun 18 | Oct 4 | May 14 | Oct 5 |
| 1997 | May 26 | Oct 8 | May 4 | Oct 12 |
| 1996 | May 26 | Sep 18 | Apr 30 | Sep 28 |
| 1995 | Jun 9 | Sep 22 | May 14 | Sep 22 |
| 1994 | May 22 | no data | May 1 | no data |
| 1993 | May 10 | Sep 14 | May 5 | Sep 14 |
| 1992 | Jun 17 | Oct 5 | Apr 19 | Oct 7 |
| 1991 | Jun 1 | Sep 15 | May 16 | Oct 24 |
| 1990 | Jun 3 | Oct 8 | Jun 1 | Oct 8 |
| 1989 | May 26 | Sep 13 | May 15 | Oct 5 |
| 1988 | Jun 1 | Sep 13 | May 31 | Sep 19 |
| 1987 | May 27 | Oct 15 | Apr 22 | Oct 20 |
| 1986 | no data | Sep 26 | no data | Oct 5 |
"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.