Last Frost Day

Frost history / Concordia 1 W, KS

Concordia 1 W, KS: frost dates by year

Last spring and first fall frost at NOAA station USC00141761, 2003 to 2021, measured from daily minimum temperatures.

Elevation 1,481 ft, 39.559, -97.670. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 17Oct 20
EarliestMar 10 (2012)Oct 2 (2004)
LatestMay 17 (2014)Nov 12 (2021)
Trend1.4 days later per decade6.2 days later per decade
Years with data1919

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 30201020202003: Apr 112004: Apr 122005: May 42006: Apr 272007: Apr 132008: Apr 282009: Apr 112010: Apr 82011: Apr 172012: Mar 102013: May 42014: May 172015: Apr 102016: Apr 132017: Apr 282018: Apr 202019: Apr 152020: Apr 182021: Apr 22

First fall frost (32°F)

Sep 27Oct 12Oct 27Nov 11Nov 26201020202003: Oct 262004: Oct 22005: Oct 82006: Oct 122007: Oct 262008: Oct 272009: Oct 102010: Oct 282011: Oct 202012: Oct 72013: Oct 192014: Oct 292015: Oct 292016: Oct 132017: Oct 272018: Oct 112019: Oct 112020: Oct 242021: Nov 12

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
2021Apr 22Nov 12Apr 22Nov 13
2020Apr 18Oct 24Apr 16Oct 26
2019Apr 15Oct 11Apr 14Oct 12
2018Apr 20Oct 11Apr 20Oct 15
2017Apr 28Oct 27Apr 27Oct 28
2016Apr 13Oct 13Apr 9Nov 12
2015Apr 10Oct 29Mar 28Nov 13
2014May 17Oct 29Apr 16Oct 31
2013May 4Oct 19Apr 25Nov 12
2012Mar 10Oct 7Mar 10Oct 7
2011Apr 17Oct 20Mar 29Oct 20
2010Apr 8Oct 28Mar 23Nov 5
2009Apr 11Oct 10Apr 8Oct 10
2008Apr 28Oct 27Apr 15Oct 27
2007Apr 13Oct 26Apr 9Nov 3
2006Apr 27Oct 12Mar 29Oct 19
2005May 4Oct 8May 3Oct 24
2004Apr 12Oct 2Apr 12Nov 3
2003Apr 11Oct 26Apr 11Oct 26

"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.