Frost history / Mahanoy City 2 N, PA

Mahanoy City 2 N, PA: frost dates by year

Last spring and first fall frost at NOAA station USC00365344, 2011 to 2025, measured from daily minimum temperatures.

Elevation 1,710 ft, 40.834, -76.144. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 29	Oct 21
Earliest	Apr 15 (2016)	Oct 13 (2012)
Latest	May 18 (2023)	Nov 3 (2021)
Trend	1.9 days later per decade	3.3 days later per decade
Years with data	15	14

At 28°F (hard freeze) the median last spring date is Apr 23 and the median first fall date is Oct 29.

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 27	Apr 10	Nov 11
2024	Apr 26	Oct 15	Apr 21	Oct 27
2023	May 18	Oct 31	Apr 25	Nov 2
2022	Apr 30	no data	Apr 30	no data
2021	May 9	Nov 3	Apr 23	Nov 3
2020	May 13	Oct 17	May 13	Oct 31
2019	Apr 29	Oct 19	Apr 29	Nov 2
2018	Apr 23	Oct 25	Apr 21	Oct 26
2017	May 9	Oct 17	Mar 30	Nov 9
2016	Apr 15	Oct 26	Apr 13	Oct 26
2015	Apr 26	Oct 18	Apr 25	Oct 19
2014	Apr 28	Oct 20	Apr 18	Oct 31
2013	May 14	Oct 23	May 14	Oct 26
2012	Apr 30	Oct 13	Apr 28	Oct 13
2011	Apr 22	Oct 28	Apr 6	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.