Last Frost Day

Frost history / Durango La Plata Co Ap, CO

Durango La Plata Co Ap, CO: frost dates by year

Last spring and first fall frost at NOAA station USW00093005, 1996 to 2024, measured from daily minimum temperatures.

Elevation 6,660 ft, 37.143, -107.760. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 30Sep 27
EarliestMay 1 (2009)Sep 9 (2001)
LatestJun 24 (2023)Oct 21 (2024)
Trend2.2 days later per decade3.9 days later per decade
Years with data2829

At 28°F (hard freeze) the median last spring date is May 20 and the median first fall date is Oct 12.

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 14Jun 292000201020201997: May 131998: Jun 91999: Jun 102000: May 202001: Jun 152002: May 252003: May 122004: May 272005: Jun 112006: May 302007: Jun 82008: Jun 122009: May 12010: May 312011: Jun 122012: May 302013: Jun 12014: Jun 152015: May 202016: May 282017: Jun 142018: May 172019: Jun 232020: May 252021: May 252022: Jun 12023: Jun 242024: May 23

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 272000201020201996: Sep 181997: Oct 121998: Sep 271999: Sep 212000: Sep 242001: Sep 92002: Oct 12003: Sep 192004: Sep 222005: Sep 182006: Sep 172007: Sep 302008: Oct 122009: Sep 222010: Oct 92011: Oct 102012: Oct 72013: Sep 272014: Oct 32015: Oct 32016: Sep 162017: Sep 192018: Sep 272019: Sep 222020: Sep 292021: Sep 212022: Oct 122023: Oct 52024: Oct 21

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
2024May 23Oct 21May 22Oct 30
2023Jun 24Oct 5Apr 27Oct 13
2022Jun 1Oct 12May 13Oct 24
2021May 25Sep 21May 12Oct 15
2020May 25Sep 29May 21Oct 12
2019Jun 23Sep 22May 24Oct 6
2018May 17Sep 27Apr 26Oct 15
2017Jun 14Sep 19May 20Sep 25
2016May 28Sep 16May 12Oct 4
2015May 20Oct 3May 11Oct 28
2014Jun 15Oct 3May 15Oct 13
2013Jun 1Sep 27May 4Sep 28
2012May 30Oct 7May 28Oct 7
2011Jun 12Oct 10May 31Oct 18
2010May 31Oct 9May 25Oct 26
2009May 1Sep 22Apr 30Oct 2
2008Jun 12Oct 12Jun 12Oct 12
2007Jun 8Sep 30Jun 8Oct 7
2006May 30Sep 17May 29Sep 17
2005Jun 11Sep 18May 12Oct 30
2004May 27Sep 22May 23Oct 14
2003May 12Sep 19May 12Oct 14
2002May 25Oct 1May 25Oct 4
2001Jun 15Sep 9Jun 14Sep 9
2000May 20Sep 24May 18Sep 25
1999Jun 10Sep 21Jun 5Sep 28
1998Jun 9Sep 27May 23Oct 5
1997May 13Oct 12May 3Oct 12
1996no dataSep 18no dataSep 28

"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.