Frost history / Bonner Springs, KS

Bonner Springs, KS: frost dates by year

Last spring and first fall frost at NOAA station USC00140957, 2007 to 2021, measured from daily minimum temperatures.

Elevation 850 ft, 39.064, -94.896. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 17	Oct 28
Earliest	Mar 30 (2010)	Oct 6 (2012)
Latest	May 17 (2014)	Nov 10 (2016)
Trend	1.1 days later per decade	little change (less than half a day per decade)
Years with data	14	15

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Oct 28.

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)

First fall frost (32°F)

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

Year	Last spring 32°F	First fall 32°F	Last spring 28°F	First fall 28°F
2021	Apr 23	Oct 30	Apr 23	Nov 3
2020	Apr 19	Oct 16	Apr 14	Oct 26
2019	Apr 14	Oct 12	Apr 2	Oct 12
2018	Apr 26	Oct 15	Apr 17	Oct 16
2017	Apr 8	Oct 28	Mar 16	Oct 28
2016	Apr 13	Nov 10	Apr 13	Nov 19
2015	Apr 5	Oct 29	Apr 5	Nov 13
2014	May 17	Oct 30	Apr 16	Nov 1
2013	May 12	Oct 23	Apr 25	Oct 25
2012	Apr 21	Oct 6	Mar 10	Oct 7
2011	May 3	Oct 19	Apr 6	Oct 21
2010	Mar 30	Oct 29	Mar 30	Oct 29
2009	Apr 14	Oct 10	Apr 8	Nov 26
2008	Apr 15	Oct 28	Apr 15	Oct 28
2007	no data	Oct 28	no data	Nov 1

"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.