Frost history / Diamond Valley - Eureka 14NNW, NV
Diamond Valley - Eureka 14NNW, NV: frost dates by year
Last spring and first fall frost at NOAA station USC00262296, 1979 to 2015, measured from daily minimum temperatures.
Elevation 5,890 ft, 39.709, -116.049. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 21 | Sep 11 |
| Earliest | May 20 (2015) | Aug 7 (1996) |
| Latest | Jul 31 (1985) | Oct 4 (2012) |
| Trend | 8.8 days earlier per decade | 4.1 days later per decade |
| Years with data | 24 | 23 |
At 28°F (hard freeze) the median last spring date is Jun 7 and the median first fall date is Sep 17.
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 | May 20 | Sep 6 | May 17 | Oct 30 |
| 2014 | Jun 19 | Sep 12 | Jun 18 | Oct 1 |
| 2013 | Jun 20 | Sep 19 | May 30 | Sep 28 |
| 2012 | Jun 11 | Oct 4 | Jun 10 | Oct 6 |
| 2006 | May 31 | Sep 16 | May 30 | Sep 17 |
| 2004 | no data | Aug 27 | no data | Sep 21 |
| 2003 | Jun 25 | no data | May 20 | no data |
| 2002 | Jun 13 | Sep 9 | Jun 13 | Sep 26 |
| 2001 | Jun 14 | Sep 7 | Jun 14 | Sep 8 |
| 2000 | Jun 17 | Sep 3 | Jun 1 | Sep 24 |
| 1999 | Jun 9 | Aug 30 | Jun 4 | Sep 1 |
| 1998 | Jun 27 | Sep 19 | Jun 14 | Sep 19 |
| 1997 | Jul 6 | no data | May 26 | no data |
| 1996 | Jun 28 | Aug 7 | May 23 | Sep 17 |
| 1995 | Jun 22 | Sep 21 | Jun 21 | Sep 21 |
| 1994 | Jul 6 | Sep 5 | Jun 7 | Sep 11 |
| 1993 | Jun 24 | Sep 13 | Jun 24 | Sep 13 |
| 1992 | Jun 13 | Aug 23 | Jun 13 | Aug 26 |
| 1991 | Jun 24 | Sep 15 | May 28 | Sep 15 |
| 1990 | Jun 13 | Sep 16 | May 25 | Oct 3 |
| 1989 | Jun 22 | Aug 25 | Jun 21 | Sep 13 |
| 1988 | Jun 9 | Sep 11 | Jun 7 | Sep 11 |
| 1987 | Jul 23 | Sep 16 | May 10 | Sep 17 |
| 1985 | Jul 31 | Aug 9 | Jun 26 | Sep 10 |
| 1980 | Jun 27 | no data | Jun 27 | no data |
| 1979 | no data | Sep 11 | no data | Sep 15 |
"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.