Frost history / Huntsville Monastery, UT
Huntsville Monastery, UT: frost dates by year
Last spring and first fall frost at NOAA station USC00424135, 1977 to 2013, measured from daily minimum temperatures.
Elevation 5,140 ft, 41.240, -111.713. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 14 | Sep 10 |
| Earliest | May 13 (2006) | Aug 4 (1980) |
| Latest | Jul 9 (1993) | Oct 9 (2011) |
| Trend | 2.4 days earlier per decade | 2.3 days later per decade |
| Years with data | 36 | 33 |
At 28°F (hard freeze) the median last spring date is May 16 and the median first fall date is Sep 23.
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 |
|---|---|---|---|---|
| 2013 | Jun 2 | no data | May 3 | no data |
| 2012 | Jun 20 | Sep 13 | Jun 10 | Oct 4 |
| 2011 | Jun 17 | Oct 9 | May 5 | Oct 9 |
| 2010 | Jun 18 | no data | May 15 | no data |
| 2009 | May 17 | no data | May 16 | no data |
| 2008 | Jun 14 | Sep 2 | May 3 | Sep 24 |
| 2007 | Jun 18 | Sep 10 | May 30 | Sep 25 |
| 2006 | May 13 | Sep 15 | May 13 | Sep 15 |
| 2005 | Jun 14 | Aug 31 | May 1 | Aug 31 |
| 2004 | Jun 1 | Aug 28 | May 30 | Sep 15 |
| 2003 | May 21 | Sep 13 | May 20 | Sep 13 |
| 2002 | Jun 12 | Sep 22 | Jun 11 | Oct 9 |
| 2001 | Jun 13 | Sep 7 | Jun 5 | Sep 9 |
| 2000 | Jun 1 | Sep 10 | Jun 1 | Sep 24 |
| 1999 | Jun 4 | Sep 8 | May 17 | Sep 27 |
| 1998 | Jun 28 | Sep 19 | Apr 27 | Oct 5 |
| 1997 | Jul 2 | Sep 17 | May 3 | Sep 28 |
| 1996 | Jun 1 | Sep 6 | May 24 | Sep 20 |
| 1995 | Jun 22 | Aug 9 | May 8 | Sep 22 |
| 1994 | no data | Sep 15 | no data | Oct 8 |
| 1993 | Jul 9 | no data | Jun 24 | no data |
| 1992 | Jun 14 | Aug 23 | May 10 | Aug 25 |
| 1991 | Jun 15 | Sep 15 | May 19 | Sep 15 |
| 1990 | Jun 17 | Oct 1 | Jun 2 | Oct 3 |
| 1989 | Jun 22 | Sep 4 | May 26 | Oct 5 |
| 1988 | Jun 14 | Sep 10 | May 3 | Sep 17 |
| 1987 | Jun 3 | Sep 5 | May 3 | Sep 17 |
| 1986 | May 23 | Sep 21 | May 23 | Sep 21 |
| 1985 | Jun 26 | Sep 13 | May 14 | Sep 23 |
| 1984 | Jun 2 | Sep 22 | May 8 | Sep 22 |
| 1983 | Jun 14 | Sep 20 | May 13 | Sep 20 |
| 1982 | Jun 10 | Sep 29 | Jun 9 | Oct 6 |
| 1981 | Jun 16 | Aug 31 | May 13 | Sep 26 |
| 1980 | Jun 28 | Aug 4 | Apr 17 | Sep 22 |
| 1979 | Jun 15 | Sep 12 | Jun 9 | Oct 4 |
| 1978 | Jun 26 | Aug 19 | Jun 1 | Sep 19 |
| 1977 | May 30 | Sep 9 | Apr 22 | Oct 2 |
"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.