National Weather ServicePennsylvaniaFreeze WarningArchive to October 1, 2026
Freeze Warnings in Pennsylvania
The National Weather Service issued 13 freeze warnings for Pennsylvania in 2025 and 21 a year on average in 2008-2025; in 2021-2025 it had the 21st most of any state. 2026 through September: 26, 97% above the average of 13 for those months in 2008-2025. Forest was covered most often (62 times since 2008).
How many freeze warnings does Pennsylvania get?
Every freeze warning that covered part of Pennsylvania. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 26 |
| 2025 | 13 |
| 2024 | 24 |
| 2023 | 28 |
| 2022 | 21 |
| 2021 | 12 |
| 2020 | 47 |
| 2019 | 6 |
| 2018 | 14 |
| 2017 | 10 |
| 2016 | 16 |
| 2015 | 16 |
| 2014 | 11 |
| 2013 | 26 |
| 2012 | 74 |
| 2011 | 7 |
| 2010 | 22 |
| 2009 | 20 |
| 2008 | 14 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Pennsylvania get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Pennsylvania?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Forest | 62 | 21 | May 12, 2026 |
| Jefferson | 61 | 21 | May 12, 2026 |
| Venango | 55 | 18 | May 12, 2026 |
| Clarion | 55 | 18 | May 12, 2026 |
| Berks | 55 | 10 | April 21, 2026 |
| Adams | 55 | 11 | April 21, 2026 |
| York | 53 | 9 | April 21, 2026 |
| Crawford | 52 | 16 | May 12, 2026 |
| Indiana | 51 | 16 | May 12, 2026 |
| Cumberland | 51 | 11 | April 21, 2026 |
| Butler | 51 | 18 | May 12, 2026 |
| Mercer | 50 | 16 | May 12, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a freeze warning?
A freeze warning means temperatures at or below 32°F are expected during the growing season, enough to kill crops and sensitive plants. Since 2024-2025 it also covers the colder nights that had a hard freeze warning of their own. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. AreaZine's counts include the hard freeze warnings issued before the change. The national record · Every warning type in Pennsylvania.