Frost history / Randolph, UT
Randolph, UT: frost dates by year
Last spring and first fall frost at NOAA station USC00427165, 1982 to 2025, measured from daily minimum temperatures.
Elevation 6,290 ft, 41.661, -111.187. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 23 | Aug 28 |
| Earliest | May 28 (2017) | Aug 1 (2022) |
| Latest | Jul 29 (2015) | Sep 19 (2013) |
| Trend | 3.4 days earlier per decade | 1.5 days later per decade |
| Years with data | 25 | 25 |
At 28°F (hard freeze) the median last spring date is Jun 11 and the median first fall date is Sep 12.
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 23 | Sep 13 | May 23 | Sep 24 |
| 2024 | Jul 4 | no data | Jun 19 | no data |
| 2023 | Jun 16 | Aug 31 | May 8 | Sep 16 |
| 2022 | Jun 22 | Aug 1 | Jun 21 | Sep 9 |
| 2021 | Jun 14 | Aug 10 | Jun 11 | Sep 4 |
| 2020 | Jul 1 | Aug 31 | Jun 9 | Aug 31 |
| 2019 | no data | Aug 27 | no data | Sep 18 |
| 2018 | Jun 3 | Aug 28 | Jun 2 | Aug 29 |
| 2017 | May 28 | Sep 16 | May 20 | Sep 17 |
| 2016 | Jul 12 | Aug 4 | May 12 | Sep 10 |
| 2015 | Jul 29 | Aug 23 | May 16 | Sep 6 |
| 2014 | Jun 19 | Sep 12 | Jun 19 | Sep 12 |
| 2013 | Jun 23 | Sep 19 | Jun 20 | Sep 20 |
| 2012 | Jun 21 | Sep 9 | Jun 11 | Sep 12 |
| 2011 | Jun 18 | Sep 3 | Jun 10 | Sep 23 |
| 2010 | Jun 18 | Aug 24 | May 30 | Sep 6 |
| 2009 | no data | Aug 9 | no data | Sep 22 |
| 2007 | Jun 19 | no data | Jun 9 | no data |
| 1998 | Jun 28 | no data | Jun 28 | no data |
| 1997 | Jul 4 | Aug 30 | Jul 2 | Sep 16 |
| 1996 | no data | Aug 7 | no data | Aug 7 |
| 1992 | no data | Aug 24 | no data | Aug 24 |
| 1990 | no data | Aug 4 | no data | Aug 28 |
| 1989 | Jun 22 | no data | Jun 22 | no data |
| 1988 | Jun 30 | Aug 10 | May 21 | Aug 23 |
| 1987 | Jul 19 | no data | Jul 19 | no data |
| 1986 | Jul 5 | Aug 14 | Jul 5 | Sep 15 |
| 1985 | Jun 28 | no data | Jun 27 | no data |
| 1984 | Jun 23 | Sep 2 | Jun 12 | Sep 2 |
| 1983 | Jul 18 | Sep 6 | Jul 11 | Sep 20 |
| 1982 | no data | Sep 2 | no data | Sep 29 |
"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.