Grayson 2 E, KY: frost dates by year

Last spring and first fall frost at NOAA station USC00153389, 1996 to 2014, measured from daily minimum temperatures.

Elevation 580 ft, 38.335, -82.907. Download the data (JSON) · NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 29	Oct 18
Earliest	Apr 7 (2011)	Oct 3 (2003)
Latest	May 23 (2002)	Nov 2 (2002)
Trend	3.5 days earlier per decade	little change (less than half a day per decade)
Years with data	18	17

At 28°F (hard freeze) the median last spring date is Apr 12 and the median first fall date is Oct 23.

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
2014	Apr 18	no data	Apr 18	no data
2013	May 15	Oct 20	Apr 7	Oct 26
2012	Apr 25	Oct 11	Apr 25	Oct 11
2011	Apr 7	Oct 22	Apr 6	Oct 30
2010	Apr 30	Oct 17	Apr 11	Oct 23
2009	May 20	Oct 18	Apr 13	Oct 19
2008	May 1	Oct 19	Apr 17	Oct 19
2007	Apr 18	Oct 14	Apr 11	Oct 29
2006	Apr 11	Oct 13	Apr 11	Oct 14
2005	May 5	Oct 26	May 5	Oct 29
2004	May 5	Oct 17	Apr 7	Nov 9
2003	Apr 25	Oct 3	Apr 1	Oct 3
2002	May 23	Nov 2	Apr 8	Nov 2
2001	Apr 30	no data	Apr 20	no data
2000	Apr 28	Oct 8	Apr 2	Oct 8
1999	Apr 26	Oct 21	Apr 14	Oct 25
1998	Apr 14	Oct 23	Apr 12	Oct 23
1997	May 17	Oct 21	Apr 17	Oct 22
1996	no data	Oct 12	no data	Nov 2

"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.