Frost history / Farmington 3 Nw, UT
Farmington 3 Nw, UT: frost dates by year
Last spring and first fall frost at NOAA station USC00422726, 1963 to 2014, measured from daily minimum temperatures.
Elevation 4,380 ft, 41.020, -111.933. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 30 | Oct 12 |
| Earliest | Mar 22 (1989) | Sep 18 (1978) |
| Latest | Jun 13 (1976) | Nov 15 (2005) |
| Trend | 7.1 days earlier per decade | 3.6 days later per decade |
| Years with data | 44 | 43 |
At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Oct 29.
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 |
|---|---|---|---|---|
| 2014 | Apr 29 | no data | Mar 23 | no data |
| 2013 | Apr 23 | no data | Apr 23 | no data |
| 2010 | no data | Oct 26 | no data | Nov 20 |
| 2009 | Apr 15 | no data | Apr 1 | no data |
| 2008 | no data | Oct 9 | no data | Oct 21 |
| 2007 | Apr 19 | no data | Mar 5 | no data |
| 2006 | Apr 20 | Oct 18 | Mar 16 | Oct 31 |
| 2005 | Apr 15 | Nov 15 | Apr 1 | Nov 15 |
| 2004 | Mar 29 | Oct 29 | Mar 7 | Nov 1 |
| 2003 | Apr 8 | no data | Apr 4 | no data |
| 2002 | Apr 19 | Oct 29 | Mar 20 | Oct 31 |
| 2001 | May 2 | Oct 12 | Apr 9 | Nov 24 |
| 2000 | Mar 30 | Sep 24 | Mar 22 | Nov 2 |
| 1999 | May 11 | Sep 27 | Apr 11 | Oct 16 |
| 1998 | Apr 18 | Oct 5 | Apr 18 | Nov 4 |
| 1997 | May 2 | Oct 12 | Apr 13 | Oct 26 |
| 1996 | Apr 28 | Oct 17 | Apr 28 | Oct 17 |
| 1995 | Apr 23 | Oct 6 | Mar 31 | Oct 23 |
| 1994 | Apr 9 | Oct 16 | Mar 24 | Oct 29 |
| 1993 | May 9 | Oct 30 | Mar 12 | Oct 31 |
| 1992 | Mar 27 | Nov 2 | Feb 24 | Nov 5 |
| 1991 | Apr 28 | Oct 24 | Apr 11 | Oct 29 |
| 1990 | May 9 | Oct 8 | Apr 29 | Oct 17 |
| 1989 | Mar 22 | Oct 17 | Mar 22 | Oct 29 |
| 1988 | May 3 | Nov 8 | Apr 9 | Nov 13 |
| 1987 | Apr 21 | Nov 12 | Mar 31 | Nov 16 |
| 1986 | Apr 27 | Sep 29 | Feb 12 | Oct 13 |
| 1985 | Apr 25 | Sep 29 | Mar 30 | Nov 9 |
| 1984 | May 7 | Sep 25 | Apr 28 | Oct 16 |
| 1983 | May 13 | Nov 9 | Apr 7 | Nov 9 |
| 1982 | May 11 | Oct 6 | Apr 21 | Oct 19 |
| 1981 | Apr 8 | Oct 22 | Apr 5 | Oct 31 |
| 1980 | Apr 14 | Oct 23 | Apr 13 | Oct 23 |
| 1979 | May 10 | Oct 21 | Apr 21 | Oct 30 |
| 1978 | May 5 | Sep 18 | Apr 18 | Nov 6 |
| 1977 | May 18 | Oct 8 | Apr 20 | Oct 11 |
| 1976 | Jun 13 | Oct 18 | Apr 27 | Oct 18 |
| 1975 | May 26 | Oct 9 | May 25 | Oct 23 |
| 1974 | May 20 | Sep 29 | Apr 15 | Nov 4 |
| 1973 | May 2 | Oct 4 | Apr 19 | Oct 26 |
| 1972 | May 2 | Sep 25 | May 2 | Oct 27 |
| 1971 | May 18 | Sep 28 | Apr 5 | Oct 19 |
| 1970 | May 14 | Sep 25 | Apr 16 | Sep 25 |
| 1969 | Apr 30 | Oct 3 | Apr 30 | Oct 11 |
| 1968 | May 16 | Sep 22 | Apr 23 | Oct 9 |
| 1967 | May 14 | Oct 15 | May 2 | Oct 27 |
| 1966 | no data | Oct 14 | no data | Oct 14 |
| 1963 | no data | Oct 28 | no data | Nov 17 |
"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.