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Will it freeze in Uniontown in the next 7 nights?
No overnight lows at or below 32°F are forecast in Uniontown during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 49°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 49°F Above 36°F · Partly Cloudy
- Fri, Nov 6 39°F Above 36°F · Chance Light Rain
- Sat, Nov 7 37°F Above 36°F · Chance Light Rain then Mostly Cloudy
- Sun, Nov 8 34°F Frost possible · Mostly Clear
- Mon, Nov 9 38°F Above 36°F · Mostly Clear
- Tue, Nov 10 37°F Above 36°F · Mostly Clear
- Wed, Nov 11 36°F Frost possible · Partly Cloudy
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Uniontown
The median first fall hard-freeze date (28°F) is October 28, from NOAA’s 1991–2020 Climate Normals at Uniontown 1 NE. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Apr 25 · May 10 · May 27 | Sep 25 · Oct 7 · Oct 20 | 150 days |
| 32°F freeze | Apr 15 · Apr 30 · May 18 | Oct 5 · Oct 18 · Oct 30 | 171 days |
| 28°F hard freeze | Mar 31 · Apr 17 · May 6 | Oct 14 · Oct 28 · Nov 10 | 195 days |
Average high temperature by month
1991–2020 normals at Uniontown 1 NE
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Uniontown, PA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Uniontown 1 NE (station USC00369050, elevation 956 ft), 1.1 mi from Uniontown. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Uniontown
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Connellsville, PA | 11 mi | Apr 22 | Oct 27 |
| Monessen, PA | 19 mi | Apr 13 | Nov 5 |
| Morgantown, WV | 22 mi | Apr 23 | Oct 24 |
| Clairton, PA | 29 mi | May 2 | Oct 20 |
| Jefferson Hills, PA | 30 mi | Apr 18 | Oct 28 |
| Greensburg, PA | 30 mi | May 1 | Oct 13 |
| Jeannette, PA | 30 mi | Apr 22 | Oct 25 |
| White Oak, PA | 30 mi | May 2 | Oct 20 |
| McKeesport, PA | 31 mi | May 2 | Oct 20 |
| Pleasant Hills, PA | 32 mi | Apr 18 | Oct 28 |
Frequently asked questions
When is the last frost in Uniontown?
On average, the last spring frost (32°F) in Uniontown is around April 30. In about 1 year in 10 it comes after May 18, and in 9 years in 10 it comes after April 15.
When is the first frost in Uniontown?
The first fall frost (32°F) usually arrives around October 18. There’s a 10% chance of a freeze by October 5 and a 90% chance by October 30.
Can it frost in Uniontown after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after May 10.
What growing zone is Uniontown?
Uniontown is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 15401. See growing zones in Pennsylvania.
More: all Pennsylvania frost dates · Pennsylvania growing zones · frost vs. freeze