Salamanca 2, NY: frost dates by year

Last spring and first fall frost at NOAA station USC00307400, 1991 to 2007, measured from daily minimum temperatures.

Elevation 1,415 ft, 42.151, -78.720. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	May 25	Sep 25
Earliest	Apr 30 (1998)	Sep 4 (1997)
Latest	Jun 3 (1993)	Oct 20 (2005)
Trend	3.2 days earlier per decade	11.6 days later per decade
Years with data	15	15

At 28°F (hard freeze) the median last spring date is May 16 and the median first fall date is Oct 4.

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
2007	May 21	no data	May 13	no data
2006	May 25	Sep 30	May 24	Oct 13
2005	May 19	Oct 20	May 18	Oct 20
2004	May 30	Oct 4	May 6	Oct 5
2003	May 23	no data	Apr 28	no data
2002	no data	Oct 8	no data	Oct 8
2001	May 31	Sep 15	May 31	Sep 30
2000	May 17	Sep 25	May 16	Sep 29
1999	May 10	Sep 22	Apr 28	Oct 7
1998	Apr 30	Oct 2	Apr 28	Oct 23
1997	May 28	Sep 4	May 23	Oct 17
1996	Jun 1	Oct 4	May 31	Oct 4
1995	May 16	Sep 11	May 8	Sep 23
1994	May 28	Oct 2	May 14	Oct 3
1993	Jun 3	Sep 20	May 30	Sep 20
1992	May 30	Sep 24	May 28	Sep 24
1991	no data	Sep 20	no data	Sep 28

"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.