Moon Twp, PA: frost dates by year

Last spring and first fall frost at NOAA station USC00365918, 2011 to 2025, measured from daily minimum temperatures.

Elevation 1,172 ft, 40.532, -80.217. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 26	Oct 26
Earliest	Apr 7 (2011)	Oct 9 (2012)
Latest	May 25 (2013)	Nov 15 (2022)
Trend	4.8 days earlier per decade	6.2 days later per decade
Years with data	15	15

At 28°F (hard freeze) the median last spring date is Apr 10 and the median first fall date is Nov 8.

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
2025	Apr 17	Oct 26	Apr 10	Nov 11
2024	Apr 7	Oct 28	Mar 25	Nov 30
2023	Apr 26	Oct 23	Apr 25	Nov 1
2022	Apr 30	Nov 15	Apr 28	Nov 15
2021	Apr 26	Nov 3	Apr 3	Nov 4
2020	May 10	Oct 17	May 10	Oct 31
2019	Apr 11	Nov 2	Apr 4	Nov 2
2018	Apr 29	Oct 19	Apr 11	Nov 11
2017	Apr 9	Nov 1	Mar 24	Nov 9
2016	Apr 14	Oct 26	Apr 13	Nov 12
2015	Apr 26	Oct 18	Apr 2	Oct 19
2014	Apr 25	Nov 2	Apr 17	Nov 8
2013	May 25	Oct 25	Apr 21	Nov 4
2012	Apr 29	Oct 9	Mar 30	Nov 6
2011	Apr 7	Oct 28	Mar 30	Nov 18

"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.