Frost history / Black Canyon Of The Gunnison, CO
Black Canyon Of The Gunnison, CO: frost dates by year
Last spring and first fall frost at NOAA station USC00050754, 2004 to 2024, measured from daily minimum temperatures.
Elevation 8,151 ft, 38.555, -107.687. Download the data (JSON) · NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 30 | Sep 25 |
| Earliest | Apr 29 (2023) | Aug 18 (2008) |
| Latest | Jun 23 (2019) | Oct 24 (2015) |
| Trend | 10.0 days earlier per decade | 10.0 days later per decade |
| Years with data | 21 | 21 |
At 28°F (hard freeze) the median last spring date is May 21 and the median first fall date is Oct 7.
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 |
|---|---|---|---|---|
| 2024 | May 26 | Sep 24 | May 24 | Oct 30 |
| 2023 | Apr 29 | Oct 5 | Apr 28 | Oct 13 |
| 2022 | May 31 | Oct 17 | May 21 | Oct 24 |
| 2021 | May 25 | Oct 10 | May 12 | Oct 10 |
| 2020 | Jun 10 | Sep 9 | Apr 17 | Oct 12 |
| 2019 | Jun 23 | Sep 22 | May 24 | Oct 10 |
| 2018 | May 4 | Oct 9 | May 3 | Oct 13 |
| 2017 | May 28 | Sep 26 | May 20 | Sep 26 |
| 2016 | May 12 | Sep 24 | Apr 27 | Oct 4 |
| 2015 | May 24 | Oct 24 | May 11 | Oct 28 |
| 2014 | Jun 9 | Sep 30 | May 14 | Oct 2 |
| 2013 | May 29 | Sep 23 | May 21 | Sep 24 |
| 2012 | Jun 11 | Sep 26 | Jun 11 | Oct 7 |
| 2011 | Jun 20 | Oct 7 | May 31 | Oct 7 |
| 2010 | May 30 | Sep 11 | May 30 | Oct 9 |
| 2009 | Jun 21 | Sep 22 | Apr 27 | Sep 22 |
| 2008 | Jun 13 | Aug 18 | Jun 9 | Oct 7 |
| 2007 | Jun 8 | Sep 25 | Jun 7 | Sep 25 |
| 2006 | May 29 | Sep 17 | May 29 | Sep 17 |
| 2005 | Jun 13 | Oct 5 | May 12 | Oct 5 |
| 2004 | May 30 | Sep 5 | May 30 | Sep 22 |
"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.