Frost history / Campbell Creek Sci Ctr, AK
Campbell Creek Sci Ctr, AK: frost dates by year
Last spring and first fall frost at NOAA station USC00501220, 2000 to 2019, measured from daily minimum temperatures.
Elevation 258 ft, 61.164, -149.778. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 3 | Sep 19 |
| Earliest | May 23 (2018) | Aug 16 (2000) |
| Latest | Jul 1 (2008) | Sep 23 (2011) |
| Trend | 11.0 days earlier per decade | 10.8 days later per decade |
| Years with data | 11 | 11 |
At 28°F (hard freeze) the median last spring date is May 20 and the median first fall date is Sep 22.
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 |
|---|---|---|---|---|
| 2019 | May 23 | Sep 22 | May 6 | Sep 24 |
| 2018 | May 23 | no data | May 13 | no data |
| 2017 | no data | Sep 20 | no data | Oct 2 |
| 2014 | no data | Aug 29 | no data | Sep 21 |
| 2013 | Jun 5 | Sep 15 | May 20 | Sep 19 |
| 2012 | May 28 | Sep 7 | May 18 | Sep 7 |
| 2011 | May 24 | Sep 23 | May 12 | Sep 25 |
| 2010 | Jun 4 | Sep 19 | May 22 | Sep 23 |
| 2009 | Jun 1 | Sep 22 | May 23 | Sep 22 |
| 2008 | Jul 1 | Sep 22 | May 26 | Sep 27 |
| 2006 | Jun 6 | no data | Jun 5 | no data |
| 2005 | Jun 3 | no data | May 11 | no data |
| 2001 | Jun 8 | Sep 8 | May 27 | Sep 10 |
| 2000 | no data | Aug 16 | no data | Aug 23 |
"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.