Frost history / Tremonton, UT
Tremonton, UT: frost dates by year
Last spring and first fall frost at NOAA station USC00428817, 1980 to 2008, measured from daily minimum temperatures.
Elevation 4,310 ft, 41.711, -112.164. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 28 | Oct 12 |
| Earliest | Mar 20 (1992) | Sep 19 (1988) |
| Latest | May 19 (1989) | Oct 31 (2006) |
| Trend | 1.1 days earlier per decade | 4.7 days later per decade |
| Years with data | 26 | 25 |
At 28°F (hard freeze) the median last spring date is Apr 11 and the median first fall date is Oct 30.
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 |
|---|---|---|---|---|
| 2008 | Apr 21 | no data | Mar 7 | no data |
| 2006 | no data | Oct 31 | no data | Nov 28 |
| 2004 | Apr 11 | no data | Mar 13 | no data |
| 2003 | Apr 16 | Oct 26 | Apr 8 | Oct 30 |
| 2002 | May 9 | Oct 13 | May 9 | Oct 31 |
| 2001 | Apr 23 | Oct 12 | Apr 23 | Oct 24 |
| 2000 | May 12 | Sep 24 | Mar 29 | Nov 2 |
| 1999 | May 11 | Sep 27 | May 11 | Oct 18 |
| 1998 | Apr 18 | Oct 5 | Mar 31 | Nov 4 |
| 1997 | May 3 | Oct 12 | May 3 | Oct 13 |
| 1996 | Apr 29 | Oct 5 | Apr 29 | Oct 17 |
| 1995 | Apr 24 | Oct 6 | Apr 15 | Oct 20 |
| 1994 | May 2 | Oct 26 | Apr 9 | Oct 29 |
| 1993 | Apr 14 | Oct 27 | Mar 13 | Oct 30 |
| 1992 | Mar 20 | Oct 15 | Mar 20 | Nov 4 |
| 1991 | May 4 | Oct 21 | Apr 13 | Oct 24 |
| 1990 | May 9 | Oct 8 | Mar 16 | Oct 9 |
| 1989 | May 19 | Oct 19 | Mar 21 | Oct 30 |
| 1988 | May 3 | Sep 19 | Apr 9 | Nov 12 |
| 1987 | Apr 21 | Oct 17 | Apr 13 | Nov 15 |
| 1986 | Apr 27 | Sep 28 | Feb 13 | Oct 12 |
| 1985 | Apr 24 | Sep 29 | Apr 24 | Nov 1 |
| 1984 | May 7 | Sep 25 | Apr 26 | Oct 21 |
| 1983 | May 13 | Sep 20 | Apr 26 | Nov 9 |
| 1982 | May 6 | Oct 6 | Apr 21 | Oct 19 |
| 1981 | Apr 8 | Oct 20 | Apr 8 | Nov 19 |
| 1980 | Apr 15 | Oct 15 | Apr 13 | Oct 24 |
"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.