Frost history / Pocatello 2 Ne, ID
Pocatello 2 Ne, ID: frost dates by year
Last spring and first fall frost at NOAA station USC00107208, 1956 to 2017, measured from daily minimum temperatures.
Elevation 4,832 ft, 42.892, -112.409. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 13 | Sep 27 |
| Earliest | Apr 27 (1963) | Sep 7 (1992) |
| Latest | Jun 19 (1996) | Oct 27 (2015) |
| Trend | 1.6 days later per decade | 1.8 days later per decade |
| Years with data | 32 | 32 |
At 28°F (hard freeze) the median last spring date is Apr 30 and the median first fall date is Oct 9.
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 |
|---|---|---|---|---|
| 2017 | May 18 | no data | May 18 | no data |
| 2016 | May 11 | Oct 12 | Apr 5 | Oct 12 |
| 2015 | May 10 | Oct 27 | Apr 15 | Nov 5 |
| 2014 | May 13 | Sep 12 | May 13 | Nov 3 |
| 2013 | May 2 | Oct 4 | May 2 | Oct 4 |
| 2012 | Jun 5 | Oct 3 | May 7 | Oct 4 |
| 2011 | Jun 3 | Oct 11 | Jun 2 | Oct 25 |
| 2010 | May 24 | Oct 12 | May 23 | Oct 25 |
| 2009 | no data | Sep 30 | no data | Oct 1 |
| 2008 | Jun 8 | Oct 10 | May 10 | Oct 11 |
| 2007 | May 23 | no data | May 4 | no data |
| 2006 | May 10 | Sep 23 | May 10 | Oct 10 |
| 2005 | May 1 | Sep 25 | Apr 29 | Oct 5 |
| 2004 | Apr 30 | Sep 21 | Apr 29 | Oct 22 |
| 2003 | May 20 | Oct 10 | May 19 | Oct 24 |
| 2002 | May 23 | Oct 3 | May 8 | Oct 11 |
| 2001 | Jun 13 | Sep 8 | May 2 | Oct 5 |
| 2000 | May 12 | Sep 22 | Apr 7 | Sep 24 |
| 1999 | Jun 9 | Sep 27 | May 11 | Sep 28 |
| 1998 | Jun 5 | Oct 5 | Apr 26 | Oct 5 |
| 1997 | May 8 | Oct 6 | Apr 13 | Oct 24 |
| 1996 | Jun 19 | Sep 18 | Apr 28 | Sep 23 |
| 1995 | Jun 7 | Sep 21 | Jun 7 | Sep 21 |
| 1994 | Apr 29 | Oct 3 | Apr 29 | Oct 4 |
| 1993 | May 9 | Sep 22 | Apr 27 | Oct 26 |
| 1992 | May 10 | Sep 7 | Apr 24 | Oct 7 |
| 1963 | Apr 27 | Oct 16 | Apr 23 | Oct 16 |
| 1962 | May 12 | Sep 9 | Apr 30 | Oct 16 |
| 1961 | May 13 | Sep 14 | Apr 20 | Sep 24 |
| 1960 | May 24 | Sep 23 | Apr 30 | Oct 14 |
| 1959 | May 21 | Sep 28 | May 3 | Sep 29 |
| 1958 | May 13 | Oct 2 | Apr 30 | Oct 21 |
| 1957 | Apr 28 | Sep 22 | Apr 27 | Oct 6 |
| 1956 | no data | Sep 22 | no data | Sep 22 |
"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.