Last Frost Day

Frost history / Rio Rancho #2, NM

Rio Rancho #2, NM: frost dates by year

Last spring and first fall frost at NOAA station USC00297481, 2008 to 2025, measured from daily minimum temperatures.

Elevation 5,290 ft, 35.252, -106.635. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 15Oct 30
EarliestApr 4 (2012)Oct 11 (2019)
LatestMay 4 (2011)Nov 18 (2021)
Trend7.1 days earlier per decade4.1 days later per decade
Years with data1515

At 28°F (hard freeze) the median last spring date is Mar 16 and the median first fall date is Nov 10.

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)

Mar 16Mar 31Apr 15Apr 30May 15201020202008: Apr 122010: May 12011: May 42012: Apr 42013: Apr 252014: Apr 52015: Apr 182018: Apr 142019: Apr 152020: Apr 162021: Apr 202022: Apr 152023: Apr 72024: Apr 82025: Apr 7

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26201020202009: Oct 302010: Oct 272011: Oct 302012: Oct 272013: Oct 192014: Nov 52017: Nov 92018: Nov 92019: Oct 112020: Oct 262021: Nov 182022: Oct 252023: Oct 302024: Oct 312025: Nov 10

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
2025Apr 7Nov 10Mar 21Dec 2
2024Apr 8Oct 31Feb 25Nov 8
2023Apr 7Oct 30Apr 6Oct 31
2022Apr 15Oct 25Mar 14Nov 11
2021Apr 20Nov 18Mar 26Nov 19
2020Apr 16Oct 26Feb 28Oct 27
2019Apr 15Oct 11Mar 16Oct 25
2018Apr 14Nov 9Mar 21Nov 13
2017no dataNov 9no dataNov 19
2015Apr 18no dataMar 7no data
2014Apr 5Nov 5Mar 21Nov 16
2013Apr 25Oct 19Apr 20Nov 7
2012Apr 4Oct 27Mar 4Nov 11
2011May 4Oct 30Mar 7Nov 4
2010May 1Oct 27Apr 4Nov 10
2009no dataOct 30no dataOct 30
2008Apr 12no dataMar 15no data

"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.