Frost history / Reno Wfo, NV
Reno Wfo, NV: frost dates by year
Last spring and first fall frost at NOAA station USC00266791, 1996 to 2025, measured from daily minimum temperatures.
Elevation 4,987 ft, 39.568, -119.796. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 26 | Oct 23 |
| Earliest | Apr 3 (2025) | Sep 28 (2007) |
| Latest | May 28 (2011) | Nov 23 (2001) |
| Trend | 3.7 days earlier per decade | 1.5 days earlier per decade |
| Years with data | 29 | 30 |
At 28°F (hard freeze) the median last spring date is Apr 13 and the median first fall date is Nov 6.
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 | Apr 3 | Nov 19 | Mar 19 | Dec 4 |
| 2024 | May 5 | Oct 18 | Apr 6 | Nov 6 |
| 2023 | May 4 | Oct 26 | Apr 19 | Oct 29 |
| 2022 | May 11 | Oct 23 | May 11 | Nov 3 |
| 2021 | Apr 26 | Oct 11 | Mar 26 | Oct 12 |
| 2020 | Apr 14 | Oct 25 | Apr 6 | Oct 25 |
| 2019 | May 1 | Sep 28 | Mar 14 | Oct 27 |
| 2018 | Apr 17 | Nov 6 | Apr 13 | Nov 9 |
| 2017 | Apr 15 | Oct 12 | Apr 9 | Dec 3 |
| 2016 | Apr 25 | Oct 2 | Mar 29 | Nov 17 |
| 2015 | Apr 15 | Nov 3 | Apr 14 | Nov 5 |
| 2014 | Apr 23 | Nov 2 | Apr 2 | Nov 16 |
| 2013 | Apr 18 | Oct 14 | Apr 17 | Nov 5 |
| 2012 | Apr 12 | Oct 24 | Apr 6 | Nov 9 |
| 2011 | May 28 | Oct 23 | May 16 | Nov 4 |
| 2010 | May 23 | Oct 26 | May 23 | Nov 9 |
| 2009 | Apr 29 | Oct 4 | Apr 15 | Oct 28 |
| 2008 | May 1 | Oct 10 | Apr 24 | Oct 10 |
| 2007 | May 5 | Sep 28 | Apr 19 | Nov 20 |
| 2006 | Apr 18 | Oct 18 | Apr 17 | Nov 10 |
| 2005 | Apr 20 | Nov 5 | Apr 14 | Nov 16 |
| 2004 | Apr 22 | Oct 21 | Mar 4 | Oct 27 |
| 2003 | Apr 30 | Oct 30 | Apr 5 | Nov 1 |
| 2002 | May 21 | Oct 30 | Apr 18 | Oct 31 |
| 2001 | Apr 21 | Nov 23 | Apr 12 | Nov 23 |
| 2000 | May 11 | Oct 22 | May 11 | Nov 9 |
| 1999 | May 15 | Nov 9 | Apr 10 | Nov 18 |
| 1998 | May 6 | Oct 30 | May 6 | Oct 30 |
| 1997 | Apr 12 | Oct 12 | Apr 5 | Dec 2 |
| 1996 | no data | Oct 19 | no data | Oct 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 1991–2020 frost probabilities.