Frost history / Topaz Lake, NV
Topaz Lake, NV: frost dates by year
Last spring and first fall frost at NOAA station USC00268186, 1957 to 2023, measured from daily minimum temperatures.
Elevation 5,292 ft, 38.739, -119.518. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 28 | Sep 22 |
| Earliest | Apr 18 (2015) | Aug 21 (1968) |
| Latest | Jul 11 (1974) | Oct 30 (2015) |
| Trend | 4.2 days earlier per decade | 3.9 days later per decade |
| Years with data | 34 | 36 |
At 28°F (hard freeze) the median last spring date is May 12 and the median first fall date is Oct 4.
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 |
|---|---|---|---|---|
| 2023 | May 10 | Sep 22 | Apr 20 | Oct 12 |
| 2022 | Jun 19 | Sep 21 | May 12 | Oct 23 |
| 2021 | May 21 | Sep 29 | Apr 28 | Oct 9 |
| 2020 | Jun 8 | Oct 15 | Jun 8 | Oct 15 |
| 2019 | May 20 | Oct 1 | May 20 | Oct 2 |
| 2018 | Apr 30 | Oct 8 | Apr 30 | Oct 15 |
| 2017 | no data | Sep 23 | no data | Sep 23 |
| 2016 | May 23 | no data | Mar 31 | no data |
| 2015 | Apr 18 | Oct 30 | Apr 17 | Nov 5 |
| 2014 | May 11 | Oct 27 | Apr 1 | Nov 2 |
| 2013 | Apr 24 | Oct 4 | Apr 18 | Oct 16 |
| 2012 | May 12 | Oct 25 | Apr 9 | Oct 27 |
| 2010 | May 28 | no data | May 24 | no data |
| 2009 | Apr 29 | Sep 29 | Apr 28 | Sep 30 |
| 2008 | May 12 | Oct 9 | May 12 | Oct 9 |
| 2007 | no data | Sep 24 | no data | Sep 28 |
| 2005 | Jun 6 | Sep 10 | Apr 24 | Oct 4 |
| 2004 | May 20 | no data | May 11 | no data |
| 2003 | no data | Oct 10 | no data | Oct 10 |
| 2002 | no data | Oct 1 | no data | Oct 2 |
| 1981 | May 17 | no data | May 17 | no data |
| 1980 | no data | Sep 22 | no data | Oct 13 |
| 1978 | May 31 | Sep 8 | May 31 | Sep 13 |
| 1977 | Jul 6 | no data | May 28 | no data |
| 1975 | no data | Oct 7 | no data | Oct 7 |
| 1974 | Jul 11 | Sep 14 | May 22 | Sep 27 |
| 1972 | May 12 | Sep 12 | May 1 | Sep 25 |
| 1971 | May 31 | no data | May 18 | no data |
| 1970 | Jun 11 | Sep 14 | May 2 | Sep 14 |
| 1969 | May 4 | Sep 21 | Apr 28 | Oct 4 |
| 1968 | Jun 30 | Aug 21 | May 24 | Sep 20 |
| 1967 | no data | Sep 14 | no data | Oct 6 |
| 1966 | Jun 5 | Sep 14 | May 1 | Sep 14 |
| 1965 | Jun 13 | Sep 17 | May 15 | Sep 17 |
| 1964 | May 25 | Sep 1 | May 9 | Sep 2 |
| 1963 | Jun 29 | Oct 6 | Jun 29 | Oct 13 |
| 1962 | Jun 7 | Sep 19 | May 20 | Oct 6 |
| 1961 | May 27 | Sep 18 | May 13 | Sep 24 |
| 1960 | Jun 21 | Aug 23 | May 22 | Oct 12 |
| 1959 | May 31 | Sep 15 | May 20 | Sep 15 |
| 1958 | Jun 4 | Sep 24 | May 1 | Sep 24 |
| 1957 | no data | Sep 20 | no data | Sep 20 |
"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.