Frost history / Thoreau 12 Se, NM
Thoreau 12 Se, NM: frost dates by year
Last spring and first fall frost at NOAA station USC00298834, 1994 to 2014, measured from daily minimum temperatures.
Elevation 7,425 ft, 35.300, -108.147. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Jun 4 | Sep 19 |
| Earliest | May 21 (2000) | Sep 5 (2004) |
| Latest | Jun 17 (1998) | Oct 8 (2011) |
| Trend | 0.9 days later per decade | little change (less than half a day per decade) |
| Years with data | 15 | 16 |
At 28°F (hard freeze) the median last spring date is May 25 and the median first fall date is Sep 27.
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 |
|---|---|---|---|---|
| 2014 | Jun 10 | no data | May 25 | no data |
| 2013 | no data | Sep 24 | no data | Sep 24 |
| 2011 | no data | Oct 8 | no data | Oct 9 |
| 2010 | Jun 12 | no data | May 25 | no data |
| 2009 | Jun 3 | Sep 21 | Apr 27 | Sep 21 |
| 2008 | no data | Sep 6 | no data | Oct 6 |
| 2007 | Jun 7 | no data | Jun 7 | no data |
| 2006 | May 30 | Sep 16 | May 29 | Sep 16 |
| 2005 | Jun 4 | Sep 13 | May 12 | Sep 14 |
| 2004 | no data | Sep 5 | no data | Sep 21 |
| 2003 | Jun 5 | no data | May 11 | no data |
| 2002 | May 24 | Sep 19 | May 24 | Oct 2 |
| 2001 | Jun 13 | Sep 8 | Jun 13 | Sep 8 |
| 2000 | May 21 | Sep 23 | May 13 | Sep 24 |
| 1999 | Jun 4 | Sep 20 | Jun 4 | Sep 28 |
| 1998 | Jun 17 | Sep 26 | May 15 | Oct 5 |
| 1997 | May 28 | Oct 7 | May 26 | Oct 8 |
| 1996 | Jun 2 | Sep 18 | May 1 | Sep 27 |
| 1995 | Jun 17 | Sep 24 | Jun 17 | Oct 1 |
| 1994 | no data | Sep 15 | no data | Oct 7 |
"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.