Last Frost Day

Frost history / La Junta, CO

La Junta, CO: frost dates by year

Last spring and first fall frost at NOAA station USC00054724, 1996 to 2025, measured from daily minimum temperatures.

Elevation 4,089 ft, 37.982, -103.544. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 28Oct 13
EarliestApr 6 (2012)Sep 9 (2020)
LatestMay 22 (2022)Oct 31 (2024)
Trend1.6 days later per decade2.0 days later per decade
Years with data3028

At 28°F (hard freeze) the median last spring date is Apr 16 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)

Mar 31Apr 15Apr 30May 15May 302000201020201996: Apr 301997: Apr 271998: Apr 301999: May 72000: Apr 172001: Apr 242002: Apr 232003: Apr 302004: Apr 142005: May 22006: Apr 272007: Apr 272008: May 122009: Apr 92010: May 132011: May 42012: Apr 62013: May 52014: May 152015: May 112016: May 32017: May 42018: Apr 252019: Apr 192020: Apr 182021: Apr 272022: May 222023: Apr 272024: May 82025: Apr 20

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12Oct 27Nov 112000201020201996: Sep 281997: Oct 251998: Oct 182000: Sep 252001: Oct 62002: Oct 132003: Oct 142004: Oct 92005: Oct 72007: Oct 192008: Oct 242009: Oct 22010: Oct 272011: Oct 132012: Oct 82013: Oct 52014: Oct 292015: Oct 312016: Oct 212017: Oct 102018: Oct 122019: Oct 112020: Sep 92021: Oct 162022: Oct 132023: Oct 142024: 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
2025Apr 20Oct 19Apr 20Oct 19
2024May 8Oct 31Apr 8Oct 31
2023Apr 27Oct 14Apr 21Oct 14
2022May 22Oct 13Apr 16Oct 25
2021Apr 27Oct 16Apr 25Oct 16
2020Apr 18Sep 9Apr 17Oct 19
2019Apr 19Oct 11Apr 14Oct 11
2018Apr 25Oct 12Apr 16Oct 12
2017May 4Oct 10Apr 3Oct 15
2016May 3Oct 21May 3Nov 9
2015May 11Oct 31Apr 11Nov 8
2014May 15Oct 29Apr 16Nov 5
2013May 5Oct 5May 4Oct 6
2012Apr 6Oct 8Mar 22Oct 8
2011May 4Oct 13Apr 17Oct 19
2010May 13Oct 27Apr 9Oct 28
2009Apr 9Oct 2Apr 8Oct 10
2008May 12Oct 24May 4Oct 24
2007Apr 27Oct 19Apr 15Oct 22
2006Apr 27no dataApr 20no data
2005May 2Oct 7Apr 1Oct 24
2004Apr 14Oct 9Apr 14Oct 31
2003Apr 30Oct 14Apr 9Oct 14
2002Apr 23Oct 13Apr 4Oct 18
2001Apr 24Oct 6Mar 25Oct 16
2000Apr 17Sep 25Apr 17Nov 7
1999May 7no dataApr 18no data
1998Apr 30Oct 18Apr 19Nov 8
1997Apr 27Oct 25Apr 15Oct 25
1996Apr 30Sep 28Apr 6Oct 18

"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.