Frost history / Red Rock Canyon - Spg Mt Rch S, NV
Red Rock Canyon - Spg Mt Rch S, NV: frost dates by year
Last spring and first fall frost at NOAA station USC00266691, 1977 to 2015, measured from daily minimum temperatures.
Elevation 3,780 ft, 36.069, -115.460. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 30 | Nov 6 |
| Earliest | Feb 24 (1992) | Sep 23 (1977) |
| Latest | May 8 (1979) | Nov 22 (2007) |
| Trend | 6.0 days earlier per decade | 0.8 days later per decade |
| Years with data | 23 | 26 |
At 28°F (hard freeze) the median last spring date is Mar 5 and the median first fall date is Nov 14.
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 |
|---|---|---|---|---|
| 2015 | Mar 7 | no data | Jan 22 | no data |
| 2014 | no data | Nov 15 | no data | Nov 15 |
| 2010 | no data | Oct 27 | no data | Nov 12 |
| 2008 | Mar 17 | Oct 12 | Mar 7 | Dec 10 |
| 2007 | Apr 21 | Nov 22 | Mar 5 | Nov 22 |
| 2001 | Apr 12 | no data | Mar 1 | no data |
| 2000 | no data | Nov 7 | no data | Nov 8 |
| 1999 | no data | Nov 19 | no data | Nov 23 |
| 1998 | Apr 17 | Nov 6 | Apr 16 | Nov 10 |
| 1997 | Apr 13 | Oct 26 | Mar 5 | Dec 3 |
| 1996 | Mar 4 | Oct 22 | Mar 4 | Oct 22 |
| 1995 | no data | Nov 6 | no data | Dec 18 |
| 1994 | Mar 24 | Oct 17 | Feb 25 | Nov 4 |
| 1993 | Mar 3 | Nov 6 | Feb 15 | Nov 6 |
| 1992 | Feb 24 | Nov 4 | Jan 29 | Nov 11 |
| 1991 | Mar 30 | Oct 29 | Mar 18 | Oct 31 |
| 1990 | Mar 16 | Nov 4 | Mar 14 | Nov 27 |
| 1989 | Mar 20 | Oct 29 | Mar 5 | Oct 30 |
| 1988 | May 6 | Nov 16 | May 6 | Nov 19 |
| 1987 | Mar 30 | Nov 16 | Mar 30 | Nov 27 |
| 1986 | Mar 19 | no data | Feb 12 | no data |
| 1985 | no data | Nov 12 | no data | Nov 12 |
| 1984 | Apr 28 | Oct 16 | Mar 5 | Oct 16 |
| 1983 | Apr 13 | Nov 19 | Feb 2 | Nov 22 |
| 1982 | Apr 7 | Nov 12 | Feb 11 | Dec 2 |
| 1981 | Mar 14 | Nov 21 | Feb 2 | Nov 21 |
| 1980 | Apr 2 | Nov 14 | Mar 7 | Nov 14 |
| 1979 | May 8 | Oct 31 | Feb 7 | Oct 31 |
| 1978 | Apr 15 | no data | Apr 15 | no data |
| 1977 | no data | Sep 23 | no data | Nov 19 |
"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.