Frost history / Milanville, PA
Milanville, PA: frost dates by year
Last spring and first fall frost at NOAA station USC00365738, 1963 to 2019, measured from daily minimum temperatures.
Elevation 760 ft, 41.672, -75.064. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | May 18 | Oct 5 |
| Earliest | Apr 29 (2019) | Aug 30 (1965) |
| Latest | Jul 21 (1965) | Oct 28 (2011) |
| Trend | 4.8 days earlier per decade | 5.6 days later per decade |
| Years with data | 22 | 23 |
At 28°F (hard freeze) the median last spring date is May 3 and the median first fall date is Oct 18.
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 |
|---|---|---|---|---|
| 2019 | Apr 29 | Oct 5 | Apr 5 | Nov 1 |
| 2018 | May 1 | Oct 19 | Apr 23 | Oct 19 |
| 2017 | May 4 | Oct 17 | Apr 8 | Oct 17 |
| 2016 | May 16 | Oct 10 | Apr 14 | Oct 26 |
| 2015 | May 14 | Oct 17 | Apr 27 | Oct 18 |
| 2014 | May 20 | Oct 5 | Apr 25 | Oct 31 |
| 2013 | May 27 | Oct 21 | Apr 23 | Oct 24 |
| 2012 | Apr 30 | Oct 13 | Apr 30 | Oct 13 |
| 2011 | May 6 | Oct 28 | Apr 22 | Oct 28 |
| 2010 | May 11 | Oct 10 | May 11 | Oct 23 |
| 2009 | no data | Oct 12 | no data | Oct 19 |
| 1975 | May 8 | no data | Apr 29 | no data |
| 1974 | May 9 | Sep 23 | May 9 | Sep 24 |
| 1973 | May 20 | Sep 21 | May 1 | Oct 22 |
| 1972 | Jun 11 | Oct 1 | May 11 | Oct 10 |
| 1971 | May 24 | Sep 26 | May 15 | Nov 5 |
| 1970 | May 8 | Oct 5 | May 8 | Oct 18 |
| 1969 | May 28 | Sep 19 | May 28 | Oct 15 |
| 1968 | May 26 | Sep 29 | May 9 | Oct 5 |
| 1967 | Jun 2 | Sep 1 | May 31 | Sep 11 |
| 1966 | Jun 3 | Sep 16 | May 12 | Sep 17 |
| 1965 | Jul 21 | Aug 30 | May 14 | Sep 28 |
| 1964 | Jun 6 | Sep 14 | May 5 | Sep 14 |
| 1963 | no data | Sep 14 | no data | Sep 23 |
"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.