Last Frost Day

Frost history / Montezuma, KS

Montezuma, KS: frost dates by year

Last spring and first fall frost at NOAA station USC00145421, 1996 to 2025, measured from daily minimum temperatures.

Elevation 2,770 ft, 37.592, -100.439. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 20Oct 18
EarliestMar 11 (2012)Sep 25 (2000)
LatestMay 14 (2004)Nov 9 (2016)
Trend3.8 days earlier per decade2.1 days later per decade
Years with data2829

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

Mar 1Mar 16Mar 31Apr 15Apr 30May 15May 302000201020201997: May 41998: May 11999: Apr 192000: Apr 222002: Apr 52003: Apr 102004: May 142005: May 42006: Apr 272007: Apr 162008: May 122009: Apr 112010: Apr 282011: May 42012: Mar 112013: May 52014: Apr 162015: Apr 112016: Apr 42017: May 12018: Apr 262019: Apr 152020: Apr 182021: Apr 222022: Apr 252023: Apr 162024: Apr 92025: Apr 16

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 11Nov 262000201020201996: Oct 181997: Oct 141998: Nov 51999: Oct 42000: Sep 252001: Oct 62002: Oct 132003: Oct 262004: Nov 32005: Oct 242006: Oct 192007: Nov 12008: Oct 242009: Oct 102010: Nov 52012: Oct 72013: Oct 172014: Nov 12015: Nov 72016: Nov 92017: Oct 272018: Oct 152019: Oct 112020: Oct 232021: Oct 162022: Oct 172023: Oct 162024: Oct 162025: Oct 30

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