Frost history / Yellowpine, ID
Yellowpine, ID: frost dates by year
Last spring and first fall frost at NOAA station USC00109950, 1970 to 2025, measured from daily minimum temperatures.
Elevation 5,050 ft, 44.963, -115.496. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 23 | Sep 1 |
| Earliest | May 24 (2025) | Aug 1 (1975) |
| Latest | Jul 28 (2015) | Sep 30 (2019) |
| Trend | 3.8 days earlier per decade | 5.3 days later per decade |
| Years with data | 24 | 26 |
At 28°F (hard freeze) the median last spring date is May 30 and the median first fall date is Sep 13.
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 | May 24 | Sep 23 | May 21 | Oct 6 |
| 2024 | Jun 19 | Aug 29 | May 24 | Sep 30 |
| 2023 | Jun 22 | Sep 20 | May 10 | Sep 20 |
| 2022 | Jun 15 | Sep 9 | May 23 | Oct 9 |
| 2021 | Jun 11 | Sep 1 | May 11 | Sep 17 |
| 2020 | Jun 15 | Sep 8 | May 24 | Sep 9 |
| 2019 | Jun 22 | Sep 30 | Jun 9 | Sep 30 |
| 2018 | Jun 12 | Sep 14 | May 2 | Sep 14 |
| 2017 | Jun 11 | Sep 21 | May 8 | Sep 24 |
| 2016 | Jun 25 | Sep 3 | May 11 | Sep 13 |
| 2015 | Jul 28 | Aug 11 | Jul 28 | Aug 18 |
| 2014 | no data | Aug 15 | no data | Sep 11 |
| 2013 | Jun 21 | Sep 19 | May 24 | Oct 4 |
| 2012 | Jun 27 | Sep 2 | Jun 7 | Sep 12 |
| 2011 | Jun 16 | Sep 3 | May 17 | Oct 9 |
| 2010 | no data | Sep 6 | no data | Sep 6 |
| 1987 | Jun 24 | Aug 17 | Jun 2 | Sep 17 |
| 1979 | Jul 3 | Sep 1 | Jun 15 | Sep 12 |
| 1978 | Jun 21 | Aug 19 | Jun 16 | Sep 15 |
| 1977 | Jul 8 | Aug 27 | Jul 7 | Sep 9 |
| 1976 | Jul 2 | Aug 17 | Jun 27 | Sep 7 |
| 1975 | Jun 30 | Aug 1 | Jun 29 | Sep 2 |
| 1974 | Jul 5 | Aug 9 | Jun 9 | Sep 2 |
| 1973 | Jul 8 | Aug 17 | Jun 20 | Aug 28 |
| 1972 | Jul 10 | no data | May 27 | no data |
| 1971 | Jul 13 | Aug 23 | Jul 7 | Sep 14 |
| 1970 | no data | Aug 9 | no data | Sep 9 |
"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.