Frost history / Whites Crossing, AK
Whites Crossing, AK: frost dates by year
Last spring and first fall frost at NOAA station USC00509790, 1971 to 2007, measured from daily minimum temperatures.
Elevation 270 ft, 61.707, -149.998. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 2 | Sep 1 |
| Earliest | May 18 (1978) | Aug 1 (1980) |
| Latest | Jun 23 (1987) | Sep 27 (1995) |
| Trend | little change (less than half a day per decade) | 3.8 days later per decade |
| Years with data | 31 | 30 |
At 28°F (hard freeze) the median last spring date is May 20 and the median first fall date is Sep 11.
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 |
|---|---|---|---|---|
| 2007 | May 22 | no data | May 2 | no data |
| 2006 | Jun 5 | Sep 13 | May 13 | Sep 18 |
| 2005 | no data | Sep 2 | no data | Sep 2 |
| 2004 | May 20 | no data | May 4 | no data |
| 2003 | May 28 | Aug 2 | May 24 | Sep 14 |
| 2002 | Jun 2 | Sep 3 | May 17 | Sep 10 |
| 2001 | May 30 | Sep 9 | May 26 | Sep 9 |
| 2000 | May 29 | Aug 16 | May 29 | Aug 23 |
| 1999 | Jun 4 | Sep 5 | May 20 | Sep 25 |
| 1998 | no data | Aug 18 | no data | Sep 5 |
| 1997 | Jun 15 | Sep 2 | Jun 1 | Sep 26 |
| 1996 | Jun 5 | Aug 28 | May 24 | Aug 28 |
| 1995 | Jun 6 | Sep 27 | May 2 | Oct 2 |
| 1994 | Jun 1 | Sep 5 | May 16 | Sep 6 |
| 1993 | Jun 8 | Sep 11 | May 7 | Sep 17 |
| 1992 | Jun 6 | Sep 3 | May 20 | Sep 11 |
| 1991 | Jun 5 | Aug 28 | May 21 | Aug 29 |
| 1990 | May 25 | Aug 31 | May 6 | Sep 24 |
| 1989 | Jun 12 | Sep 16 | May 20 | Sep 16 |
| 1988 | Jun 1 | Sep 3 | May 4 | Sep 23 |
| 1987 | Jun 23 | Aug 20 | May 29 | Aug 31 |
| 1986 | Jun 13 | Aug 16 | May 24 | Sep 24 |
| 1985 | Jun 2 | Sep 10 | Jun 2 | Sep 12 |
| 1984 | no data | Aug 27 | no data | Aug 27 |
| 1983 | Jun 7 | no data | May 11 | no data |
| 1982 | Jun 3 | no data | May 22 | no data |
| 1981 | May 24 | Aug 17 | May 7 | Sep 22 |
| 1980 | May 19 | Aug 1 | May 15 | Aug 23 |
| 1979 | Jun 14 | Sep 1 | May 18 | Sep 2 |
| 1978 | May 18 | Aug 25 | May 9 | Sep 23 |
| 1977 | May 30 | no data | May 21 | no data |
| 1974 | May 19 | Aug 20 | May 13 | Aug 23 |
| 1973 | May 29 | Aug 14 | May 22 | Aug 15 |
| 1972 | Jun 10 | Sep 16 | May 26 | Sep 16 |
| 1971 | no data | Aug 4 | no data | Sep 25 |
"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.