Frost history / Verdi 2W, CA
Verdi 2W, CA: frost dates by year
Last spring and first fall frost at NOAA station USC00049298, 2012 to 2025, measured from daily minimum temperatures.
Elevation 5,429 ft, 39.521, -120.027. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 20 | Oct 12 |
| Earliest | Apr 30 (2018) | Aug 30 (2018) |
| Latest | Jun 19 (2022) | Oct 29 (2015) |
| Trend | 4.8 days earlier per decade | 2.4 days later per decade |
| Years with data | 14 | 14 |
At 28°F (hard freeze) the median last spring date is Apr 30 and the median first fall date is Oct 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 |
|---|---|---|---|---|
| 2025 | May 14 | Oct 12 | Apr 19 | Oct 12 |
| 2024 | May 9 | Oct 18 | May 8 | Oct 18 |
| 2023 | May 10 | Oct 12 | May 4 | Oct 13 |
| 2022 | Jun 19 | Oct 23 | May 20 | Oct 23 |
| 2021 | May 21 | Oct 9 | May 8 | Oct 9 |
| 2020 | Jun 8 | Oct 23 | Apr 14 | Oct 23 |
| 2019 | May 20 | Sep 17 | May 1 | Oct 1 |
| 2018 | Apr 30 | Aug 30 | Apr 30 | Oct 15 |
| 2017 | Jun 13 | Sep 23 | May 15 | Oct 4 |
| 2016 | May 23 | Sep 23 | Apr 26 | Nov 2 |
| 2015 | May 13 | Oct 29 | Apr 16 | Nov 4 |
| 2014 | May 11 | Oct 27 | May 11 | Oct 27 |
| 2013 | May 24 | Sep 26 | Apr 19 | Oct 16 |
| 2012 | Jun 6 | Oct 23 | Apr 27 | Oct 26 |
"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.