Frost history / Eisenhower Nhs, PA
Eisenhower Nhs, PA: frost dates by year
Last spring and first fall frost at NOAA station USC00362537, 1982 to 2008, measured from daily minimum temperatures.
Elevation 540 ft, 39.805, -77.229. Download the data (JSON), NOAA daily records
Summary at 32°F
| Last spring frost | First fall frost | |
|---|---|---|
| Median | Apr 28 | Oct 11 |
| Earliest | Apr 13 (1992) | Sep 25 (1983) |
| Latest | May 26 (1983) | Nov 3 (1984) |
| Trend | 2.2 days earlier per decade | 3.8 days later per decade |
| Years with data | 17 | 22 |
At 28°F (hard freeze) the median last spring date is Apr 14 and the median first fall date is Oct 21.
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 |
|---|---|---|---|---|
| 2008 | Apr 18 | Oct 19 | Apr 17 | Oct 20 |
| 2007 | no data | Oct 29 | no data | Oct 29 |
| 2006 | Apr 27 | Oct 13 | Apr 25 | Oct 14 |
| 2005 | May 5 | Oct 29 | Apr 17 | Nov 11 |
| 2004 | Apr 28 | Oct 18 | Apr 6 | Nov 10 |
| 2002 | May 22 | no data | Apr 7 | no data |
| 2001 | no data | Oct 8 | no data | Oct 8 |
| 2000 | no data | Oct 10 | no data | Nov 6 |
| 1996 | no data | Oct 4 | no data | Oct 12 |
| 1995 | Apr 25 | Oct 17 | Apr 16 | Nov 5 |
| 1994 | May 14 | Oct 11 | Apr 8 | Oct 28 |
| 1993 | Apr 28 | Oct 1 | Apr 7 | Oct 11 |
| 1992 | Apr 13 | Oct 6 | Apr 4 | Oct 20 |
| 1991 | Apr 23 | Oct 14 | Apr 4 | Oct 21 |
| 1990 | Apr 19 | Oct 20 | Apr 19 | Oct 27 |
| 1989 | Apr 24 | Sep 28 | Apr 24 | Nov 4 |
| 1988 | Apr 26 | Oct 6 | Apr 22 | Oct 9 |
| 1987 | May 5 | Oct 9 | Apr 2 | Oct 14 |
| 1986 | May 4 | Oct 11 | Apr 14 | Oct 20 |
| 1985 | May 4 | Oct 12 | Apr 10 | Oct 29 |
| 1984 | no data | Nov 3 | no data | Nov 3 |
| 1983 | May 26 | Sep 25 | Apr 17 | Oct 22 |
| 1982 | no data | Oct 17 | no data | Oct 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.