Frost history / Beaver Canyon Pwr House, UT
Beaver Canyon Pwr House, UT: frost dates by year
Last spring and first fall frost at NOAA station USC00420527, 1997 to 2020, measured from daily minimum temperatures.
Elevation 7,275 ft, 38.268, -112.482. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 4 | Sep 23 |
| Earliest | May 4 (2018) | Sep 4 (1999) |
| Latest | Jun 28 (2019) | Oct 8 (2010) |
| Trend | 2.1 days earlier per decade | 6.2 days later per decade |
| Years with data | 18 | 14 |
At 28°F (hard freeze) the median last spring date is May 18 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 |
|---|---|---|---|---|
| 2020 | Jun 9 | no data | Jun 9 | no data |
| 2019 | Jun 28 | no data | May 24 | no data |
| 2018 | May 4 | Oct 6 | May 1 | Oct 9 |
| 2017 | May 20 | no data | May 20 | no data |
| 2016 | May 27 | Sep 24 | May 1 | Sep 25 |
| 2014 | May 14 | no data | May 13 | no data |
| 2011 | Jun 3 | Oct 6 | May 10 | Oct 7 |
| 2010 | Jun 14 | Oct 8 | May 29 | Oct 26 |
| 2009 | Jun 6 | Sep 22 | May 1 | Oct 1 |
| 2006 | May 29 | Sep 16 | May 28 | Sep 23 |
| 2005 | Jun 7 | Oct 5 | May 17 | Oct 5 |
| 2004 | no data | Sep 4 | no data | Sep 14 |
| 2003 | May 19 | Sep 18 | May 19 | Oct 11 |
| 2002 | Jun 10 | Sep 19 | May 24 | Oct 3 |
| 2001 | Jun 14 | Sep 8 | Jun 14 | Oct 10 |
| 2000 | May 20 | no data | May 18 | no data |
| 1999 | Jun 5 | Sep 4 | May 16 | Sep 28 |
| 1998 | Jun 17 | Oct 4 | May 14 | Oct 4 |
| 1997 | May 25 | Oct 8 | May 2 | Oct 12 |
"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.