Frost history / Galena, AK
Galena, AK: frost dates by year
Last spring and first fall frost at NOAA station USC00503212, 1997 to 2025, measured from daily minimum temperatures.
Elevation 152 ft, 64.741, -156.876. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 23 | Aug 31 |
| Earliest | May 12 (2010) | Aug 17 (1997) |
| Latest | Jun 9 (2025) | Sep 23 (2007) |
| Trend | little change (less than half a day per decade) | little change (less than half a day per decade) |
| Years with data | 21 | 23 |
At 28°F (hard freeze) the median last spring date is May 12 and the median first fall date is Sep 14.
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 | Jun 9 | Aug 20 | Apr 26 | Sep 14 |
| 2024 | May 28 | Aug 31 | May 14 | Sep 2 |
| 2023 | Jun 3 | Aug 28 | Jun 3 | Sep 12 |
| 2022 | May 17 | Aug 19 | May 15 | Sep 27 |
| 2021 | May 23 | Aug 27 | May 6 | Sep 20 |
| 2020 | May 20 | Sep 6 | May 5 | Sep 6 |
| 2019 | no data | Sep 17 | no data | Sep 18 |
| 2017 | May 16 | Aug 29 | May 11 | Sep 26 |
| 2016 | no data | Sep 3 | no data | Sep 27 |
| 2012 | May 16 | no data | May 15 | no data |
| 2011 | May 21 | Sep 16 | May 12 | Sep 24 |
| 2010 | May 12 | Sep 17 | May 8 | Sep 20 |
| 2009 | May 16 | Aug 17 | May 7 | Aug 27 |
| 2008 | no data | Aug 24 | no data | Sep 12 |
| 2007 | May 16 | Sep 23 | May 14 | Sep 23 |
| 2006 | Jun 5 | Sep 3 | Jun 3 | Sep 28 |
| 2005 | May 17 | Sep 1 | Apr 30 | Sep 1 |
| 2004 | May 19 | Aug 28 | May 3 | Sep 6 |
| 2003 | May 25 | Sep 6 | May 23 | Sep 10 |
| 2002 | May 31 | Aug 20 | May 16 | Sep 20 |
| 2000 | May 29 | Sep 9 | May 22 | Sep 15 |
| 1999 | Jun 3 | Sep 4 | Jun 3 | Sep 4 |
| 1998 | May 25 | Aug 26 | May 12 | Sep 11 |
| 1997 | May 23 | Aug 17 | May 9 | Aug 18 |
"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.