Ithaca 13 E, NY: frost dates by year

Last spring and first fall frost at NOAA station USW00064758, 2005 to 2024, measured from daily minimum temperatures.

Elevation 1,228 ft, 42.440, -76.246. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	May 14	Oct 9
Earliest	Apr 26 (2024)	Sep 17 (2013)
Latest	Jun 1 (2009)	Oct 31 (2023)
Trend	5.0 days earlier per decade	2.7 days later per decade
Years with data	19	20

At 28°F (hard freeze) the median last spring date is May 9 and the median first fall date is Oct 19.

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
2024	Apr 26	Oct 11	Apr 26	Oct 25
2023	May 27	Oct 31	May 18	Nov 1
2022	May 10	Oct 18	May 9	Oct 19
2021	May 14	Oct 22	Apr 26	Nov 3
2020	May 14	Sep 18	May 14	Sep 19
2019	no data	Oct 5	no data	Oct 19
2018	May 1	Oct 18	May 1	Oct 18
2017	May 9	Oct 1	Apr 23	Nov 7
2016	May 19	Sep 25	May 10	Oct 11
2015	May 23	Oct 17	May 23	Oct 17
2014	May 19	Sep 19	May 7	Oct 12
2013	May 27	Sep 17	May 14	Oct 29
2012	Apr 30	Oct 8	Apr 30	Oct 12
2011	May 6	Oct 6	Apr 22	Oct 28
2010	May 11	Oct 9	May 11	Oct 13
2009	Jun 1	Oct 11	May 19	Oct 12
2008	May 29	Oct 4	May 1	Oct 7
2007	May 22	Oct 13	May 14	Oct 28
2006	May 7	Oct 7	May 7	Oct 15
2005	May 19	Oct 20	May 13	Oct 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.