Frost history / Wfo Pueblo, CO
Wfo Pueblo, CO: frost dates by year
Last spring and first fall frost at NOAA station USC00058992, 2012 to 2025, measured from daily minimum temperatures.
Elevation 4,653 ft, 38.280, -104.521. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 27 | Oct 14 |
| Earliest | Apr 14 (2015) | Sep 9 (2020) |
| Latest | May 21 (2022) | Oct 28 (2015) |
| Trend | 8.6 days later per decade | 5.6 days later per decade |
| Years with data | 11 | 12 |
At 28°F (hard freeze) the median last spring date is Apr 16 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 | Apr 20 | Oct 19 | Apr 20 | Oct 21 |
| 2024 | May 9 | Oct 25 | Apr 8 | Oct 31 |
| 2023 | Apr 27 | Oct 14 | Apr 22 | Oct 14 |
| 2022 | May 21 | Oct 17 | Apr 16 | Oct 25 |
| 2021 | Apr 29 | Oct 15 | Apr 22 | Oct 16 |
| 2020 | Apr 18 | Sep 9 | Apr 18 | Oct 18 |
| 2019 | Apr 19 | Oct 7 | Apr 14 | Oct 10 |
| 2018 | Apr 27 | Oct 14 | Apr 19 | Oct 14 |
| 2017 | May 4 | Oct 9 | Apr 10 | Oct 10 |
| 2016 | May 2 | Oct 7 | Apr 9 | Oct 20 |
| 2015 | Apr 14 | Oct 28 | Apr 4 | Nov 6 |
| 2012 | no data | Oct 7 | no data | Oct 8 |
"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.