Frost history / Salt Lake City E Bench, UT
Salt Lake City E Bench, UT: frost dates by year
Last spring and first fall frost at NOAA station USC00427655, 1990 to 2004, measured from daily minimum temperatures.
Elevation 4,850 ft, 40.736, -111.817. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 29 | Oct 22 |
| Earliest | Mar 31 (2000) | Sep 18 (1996) |
| Latest | May 11 (1999) | Nov 3 (1992) |
| Trend | 13.2 days earlier per decade | 7.2 days later per decade |
| Years with data | 11 | 12 |
At 28°F (hard freeze) the median last spring date is Apr 6 and the median first fall date is Oct 31.
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 |
|---|---|---|---|---|
| 2004 | Apr 29 | Oct 29 | Mar 5 | Nov 1 |
| 2003 | Apr 8 | Oct 30 | Apr 3 | Oct 30 |
| 2002 | May 9 | Oct 29 | May 8 | Oct 31 |
| 2001 | Apr 14 | Oct 12 | Apr 14 | Nov 24 |
| 2000 | Mar 31 | Nov 2 | Mar 21 | Nov 2 |
| 1999 | May 11 | Sep 27 | Apr 10 | Nov 22 |
| 1998 | Apr 18 | no data | Mar 30 | no data |
| 1997 | May 2 | no data | May 2 | no data |
| 1996 | Apr 29 | Sep 18 | Apr 28 | Oct 16 |
| 1995 | no data | Oct 13 | no data | Oct 23 |
| 1994 | Apr 28 | Oct 15 | Mar 24 | Oct 29 |
| 1993 | May 9 | Oct 30 | Apr 6 | Oct 30 |
| 1992 | no data | Nov 3 | no data | Nov 3 |
| 1990 | no data | Oct 8 | no data | Oct 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.