Frost history / Ft Huachuca Pioneer Airfield, AZ
Ft Huachuca Pioneer Airfield, AZ: frost dates by year
Last spring and first fall frost at NOAA station USW00053146, 2008 to 2024, measured from daily minimum temperatures.
Elevation 4,768 ft, 31.607, -110.428. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Mar 27 | Nov 12 |
| Earliest | Feb 26 (2015) | Oct 13 (2008) |
| Latest | Apr 17 (2009) | Dec 11 (2021) |
| Trend | 11.9 days earlier per decade | 16.8 days later per decade |
| Years with data | 11 | 14 |
At 28°F (hard freeze) the median last spring date is Feb 18 and the median first fall date is Dec 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 |
|---|---|---|---|---|
| 2024 | Mar 17 | Nov 7 | Jan 12 | Nov 8 |
| 2023 | Apr 5 | Dec 2 | Apr 5 | none |
| 2022 | Mar 11 | Nov 4 | Mar 8 | Dec 14 |
| 2021 | Mar 17 | Dec 11 | Feb 18 | none |
| 2020 | Mar 28 | Oct 27 | Feb 26 | Oct 27 |
| 2019 | Mar 14 | Dec 1 | Mar 9 | Dec 17 |
| 2018 | Mar 27 | Nov 13 | Mar 1 | Dec 28 |
| 2017 | Apr 1 | Dec 7 | Jan 28 | Dec 8 |
| 2016 | Apr 1 | Nov 29 | Feb 4 | Nov 30 |
| 2015 | Feb 26 | Nov 17 | Jan 23 | Nov 30 |
| 2014 | no data | Nov 4 | no data | Nov 25 |
| 2012 | no data | Nov 11 | no data | Dec 19 |
| 2009 | Apr 17 | Oct 28 | Feb 13 | Oct 30 |
| 2008 | no data | Oct 13 | no data | Dec 10 |
"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.