Last Frost Day

Frost history / Ouzinkie, AK

Ouzinkie, AK: frost dates by year

Last spring and first fall frost at NOAA station USC00506853, 1989 to 2004, measured from daily minimum temperatures.

Elevation 40 ft, 57.926, -152.501. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 17Sep 29
EarliestApr 22 (2004)Sep 16 (1996)
LatestMay 28 (1994)Oct 27 (2002)
Trend14.7 days earlier per decade5.0 days later per decade
Years with data1214

At 28°F (hard freeze) the median last spring date is Apr 13 and the median first fall date is Oct 15.

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)

Apr 15Apr 30May 15May 30Jun 14199020001990: May 231991: May 101992: May 151993: May 101994: May 281995: May 171996: May 221997: May 181998: May 171999: May 242002: Apr 262004: Apr 22

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11199020001989: Sep 291990: Oct 21991: Oct 71992: Sep 211993: Sep 221995: Oct 61996: Sep 161997: Oct 171998: Sep 291999: Sep 282000: Sep 192001: Oct 112002: Oct 272003: Sep 22

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2004Apr 22no dataApr 13no data
2003no dataSep 22no dataNov 13
2002Apr 26Oct 27Apr 24Nov 16
2001no dataOct 11no dataOct 11
2000no dataSep 19no dataNov 1
1999May 24Sep 28May 2Oct 9
1998May 17Sep 29Apr 13Oct 21
1997May 18Oct 17Apr 22Oct 18
1996May 22Sep 16Apr 8Sep 30
1995May 17Oct 6Mar 28Oct 13
1994May 28no dataApr 17no data
1993May 10Sep 22Apr 13Oct 24
1992May 15Sep 21May 6Sep 21
1991May 10Oct 7Apr 13Oct 12
1990May 23Oct 2Apr 12Oct 16
1989no dataSep 29no dataSep 29

"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.