Last Frost Day

Frost history / Mountainair 8NW, NM

Mountainair 8NW, NM: frost dates by year

Last spring and first fall frost at NOAA station USC00295968, 2009 to 2025, measured from daily minimum temperatures.

Elevation 6,672 ft, 34.624, -106.310. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 12Oct 11
EarliestApr 21 (2012)Sep 9 (2020)
LatestJun 1 (2011)Oct 31 (2024)
Trend1.0 days later per decade8.0 days later per decade
Years with data1615

At 28°F (hard freeze) the median last spring date is Apr 28 and the median first fall date is Oct 19.

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 14201020202009: Apr 282010: May 262011: Jun 12012: Apr 212013: May 132014: May 162015: Apr 302017: May 252018: May 62019: May 282020: May 102021: May 112022: May 262023: May 62024: May 102025: May 12

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 11201020202009: Sep 222010: Oct 122011: Oct 102012: Oct 92013: Sep 292014: Oct 132017: Oct 102018: Oct 112019: Oct 112020: Sep 92021: Oct 112022: Oct 192023: Oct 52024: Oct 312025: Oct 19

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
2025May 12Oct 19Apr 30Oct 29
2024May 10Oct 31Apr 12Oct 31
2023May 6Oct 5Apr 30Oct 15
2022May 26Oct 19Apr 27Oct 29
2021May 11Oct 11Apr 25Oct 13
2020May 10Sep 9Apr 18Oct 24
2019May 28Oct 11Apr 15Oct 11
2018May 6Oct 11Apr 23Oct 15
2017May 25Oct 10May 1Oct 10
2015Apr 30no dataApr 30no data
2014May 16Oct 13May 15Oct 15
2013May 13Sep 29May 5Oct 6
2012Apr 21Oct 9Apr 18Oct 26
2011Jun 1Oct 10May 4Oct 19
2010May 26Oct 12May 2Oct 26
2009Apr 28Sep 22Apr 20Oct 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 1991–2020 frost probabilities.