Erie Intl Ap, PA: frost dates by year

Last spring and first fall frost at NOAA station USW00014860, 1951 to 2024, measured from daily minimum temperatures.

Elevation 730 ft, 42.080, -80.183. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 29	Oct 31
Earliest	Apr 8 (1955)	Oct 3 (1974)
Latest	Jun 11 (1972)	Nov 25 (1963)
Trend	1.0 days earlier per decade	2.3 days later per decade
Years with data	74	74

At 28°F (hard freeze) the median last spring date is Apr 13 and the median first fall date is Nov 12.

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	Nov 13	Mar 30	Nov 13
2023	Apr 27	Oct 31	Apr 8	Nov 27
2022	Apr 29	Oct 28	Mar 29	Nov 18
2021	Apr 26	Nov 20	Mar 20	Dec 7
2020	May 13	Nov 17	Mar 22	Dec 15
2019	Apr 29	Nov 8	Mar 27	Nov 12
2018	Apr 30	Nov 10	Apr 10	Nov 10
2017	May 9	Nov 9	Mar 23	Nov 10
2016	Apr 14	Nov 12	Apr 13	Dec 8
2015	Apr 28	Nov 22	Apr 1	Nov 29
2014	Apr 24	Nov 13	Apr 16	Nov 15
2013	Apr 21	Oct 29	Apr 21	Nov 20
2012	Apr 29	Nov 6	Apr 29	Nov 6
2011	Apr 30	Oct 28	Apr 2	Nov 5
2010	May 10	Nov 1	Mar 30	Nov 26
2009	May 18	Oct 18	Apr 13	Oct 18
2008	Apr 15	Oct 23	Apr 3	Nov 19
2007	Apr 20	Nov 3	Apr 14	Nov 23
2006	May 23	Nov 2	Mar 27	Nov 21
2005	Apr 14	Nov 16	Mar 26	Nov 17
2004	May 4	Nov 9	Apr 6	Nov 13
2003	Apr 27	Nov 8	Apr 24	Nov 9
2002	May 20	Oct 25	Apr 7	Oct 31
2001	Apr 29	Oct 8	Apr 19	Dec 16
2000	Apr 28	Oct 30	Apr 13	Nov 19
1999	Apr 25	Nov 16	Mar 28	Nov 30
1998	Apr 11	Oct 31	Apr 6	Dec 14
1997	May 7	Nov 6	Apr 14	Nov 13
1996	Apr 24	Nov 3	Apr 10	Nov 12
1995	Apr 16	Nov 3	Apr 16	Nov 6
1994	Apr 23	Nov 23	Apr 8	Nov 23
1993	Apr 27	Oct 11	Apr 27	Nov 8
1992	Apr 15	Nov 7	Apr 6	Nov 7
1991	Apr 12	Nov 3	Apr 3	Nov 3
1990	Apr 18	Oct 27	Apr 12	Nov 20
1989	Apr 24	Nov 4	Apr 23	Nov 17
1988	Apr 25	Oct 30	Mar 22	Oct 31
1987	May 5	Oct 26	Apr 1	Nov 20
1986	Apr 24	Oct 19	Apr 13	Nov 13
1985	Apr 17	Oct 29	Apr 10	Oct 29
1984	Apr 11	Nov 3	Apr 11	Nov 3
1983	May 10	Oct 29	Apr 1	Oct 30
1982	Apr 29	Oct 23	Apr 15	Nov 15
1981	May 20	Oct 24	Apr 21	Nov 10
1980	May 16	Oct 23	Apr 24	Nov 2
1979	May 2	Nov 4	Apr 19	Nov 12
1978	May 3	Oct 17	Apr 23	Oct 17
1977	May 8	Oct 14	Apr 29	Nov 13
1976	May 8	Oct 27	Apr 12	Nov 5
1975	Apr 28	Oct 27	Apr 22	Oct 30
1974	May 8	Oct 3	Apr 20	Oct 18
1973	Apr 25	Nov 6	Apr 14	Nov 10
1972	Jun 11	Oct 10	Apr 28	Oct 19
1971	Apr 27	Nov 7	Apr 15	Nov 7
1970	May 7	Nov 8	May 7	Nov 8
1969	May 1	Oct 22	Apr 20	Oct 24
1968	May 7	Oct 31	Apr 11	Nov 21
1967	May 23	Nov 4	Apr 12	Nov 5
1966	May 11	Oct 26	Apr 14	Nov 3
1965	Apr 25	Oct 28	Apr 19	Oct 29
1964	Apr 11	Oct 11	Apr 9	Nov 21
1963	May 24	Nov 25	Apr 15	Dec 1
1962	Apr 20	Oct 25	Apr 17	Nov 25
1961	May 2	Nov 8	Apr 9	Nov 10
1960	Apr 29	Nov 7	Apr 19	Nov 29
1959	Apr 23	Oct 28	Apr 22	Nov 15
1958	Apr 30	Oct 6	Apr 10	Nov 26
1957	May 17	Oct 12	Apr 15	Nov 9
1956	May 25	Oct 11	Apr 25	Nov 10
1955	Apr 8	Nov 4	Mar 30	Nov 17
1954	May 21	Oct 30	Apr 9	Nov 1
1953	Apr 24	Oct 8	Apr 19	Nov 5
1952	May 3	Oct 20	Apr 16	Oct 25
1951	Apr 21	Nov 1	Apr 21	Nov 3

"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.