Copake, NY: frost dates by year

Last spring and first fall frost at NOAA station USC00301761, 1988 to 2005, measured from daily minimum temperatures.

Elevation 550 ft, 42.113, -73.552. Download the data (JSON) · NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	May 8	Oct 2
Earliest	Apr 27 (1991)	Sep 18 (1990)
Latest	May 29 (1994)	Oct 15 (2002)
Trend	2.0 days later per decade	9.7 days later per decade
Years with data	17	17

At 28°F (hard freeze) the median last spring date is Apr 29 and the median first fall date is Oct 11.

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
2005	May 14	no data	May 13	no data
2004	May 5	Oct 6	Apr 7	Nov 4
2003	May 4	Oct 3	Apr 25	Oct 20
2002	May 22	Oct 15	May 21	Oct 15
2001	May 16	Oct 8	Apr 29	Oct 9
2000	May 2	Sep 29	Apr 14	Sep 30
1999	May 2	Oct 6	Apr 30	Oct 8
1998	Apr 30	Oct 5	Apr 29	Nov 4
1997	May 9	Oct 2	Apr 17	Oct 3
1996	May 16	Oct 4	May 15	Oct 5
1995	May 10	Sep 29	May 8	Nov 6
1994	May 29	Oct 3	Apr 24	Oct 12
1993	Apr 29	Sep 20	Apr 29	Oct 11
1992	May 8	Sep 25	Apr 16	Oct 1
1991	Apr 27	Sep 28	Apr 15	Oct 21
1990	May 13	Sep 18	Apr 20	Oct 28
1989	May 5	Sep 25	Apr 29	Oct 10
1988	no data	Sep 29	no data	Oct 7

"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.