Frost history / Roan Mtn 3SW, TN
Roan Mtn 3SW, TN: frost dates by year
Last spring and first fall frost at NOAA station USC00407770, 2002 to 2025, measured from daily minimum temperatures.
Elevation 2,923 ft, 36.164, -82.095. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 1 | Oct 17 |
| Earliest | Apr 10 (2017) | Sep 29 (2022) |
| Latest | May 17 (2014) | Nov 6 (2004) |
| Trend | 2.0 days earlier per decade | 7.1 days earlier per decade |
| Years with data | 15 | 15 |
At 28°F (hard freeze) the median last spring date is Apr 19 and the median first fall date is Oct 31.
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 18 | Oct 4 | Apr 13 | Oct 24 |
| 2024 | Apr 25 | no data | Apr 8 | no data |
| 2023 | May 4 | Oct 9 | Apr 25 | Nov 1 |
| 2022 | Apr 27 | Sep 29 | Apr 20 | Oct 18 |
| 2021 | May 13 | Oct 27 | Apr 25 | Nov 6 |
| 2020 | May 12 | Oct 3 | May 12 | Oct 31 |
| 2019 | Apr 19 | Oct 15 | Apr 19 | Nov 1 |
| 2018 | May 1 | Oct 21 | Apr 21 | Oct 22 |
| 2017 | Apr 10 | Oct 17 | Apr 9 | Oct 26 |
| 2016 | May 16 | Oct 23 | Apr 11 | Nov 12 |
| 2015 | Apr 29 | Oct 17 | Apr 6 | Oct 18 |
| 2014 | May 17 | Oct 5 | Apr 17 | Nov 1 |
| 2013 | no data | Oct 21 | no data | Oct 24 |
| 2005 | May 3 | no data | Apr 25 | no data |
| 2004 | May 5 | Nov 6 | May 5 | Nov 6 |
| 2003 | Apr 25 | Sep 30 | Apr 1 | Oct 3 |
| 2002 | no data | Nov 2 | no data | Nov 2 |
"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.