Checking current alerts… View NWS forecast and alerts.
Will it freeze in Carbondale in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Wed, Nov 11: 31°F (Wed, Nov 11, 6:00 PM EST to Thu, Nov 12, 6:00 AM EST).
Tonight: forecast low 52°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
4 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 52°F Above 36°F · Chance Rain Showers then Areas Of Fog
- Fri, Nov 6 44°F Above 36°F · Partly Cloudy then Slight Chance Rain Showers
- Sat, Nov 7 41°F Above 36°F · Rain Showers Likely
- Sun, Nov 8 35°F Frost possible · Slight Chance Light Rain
- Mon, Nov 9 34°F Frost possible · Partly Cloudy
- Tue, Nov 10 34°F Frost possible · Slight Chance Light Rain then Mostly Clear
- Wed, Nov 11 31°F Freeze · Slight Chance Light Rain
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 Carbondale
The median first fall hard-freeze date (28°F) is October 12, from NOAA’s 1991–2020 Climate Normals at Pleasant Mt 1 W. 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 | May 12 · May 27 · Jun 8 | Sep 10 · Sep 23 · Oct 3 | 118 days |
| 32°F freeze | Apr 30 · May 14 · May 29 | Sep 21 · Oct 1 · Oct 15 | 140 days |
| 28°F hard freeze | Apr 19 · May 3 · May 18 | Sep 30 · Oct 12 · Oct 31 | 163 days |
Average high temperature by month
1991–2020 normals at Pleasant Mt 1 W
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 Carbondale, PA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Pleasant Mt 1 W (station USC00367029, elevation 1,800 ft), 12 mi from Carbondale. 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 Carbondale
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Archbald, PA | 5.0 mi | Apr 23 | Oct 20 |
| Blakely, PA | 7.5 mi | Apr 23 | Oct 20 |
| Olyphant, PA | 9.3 mi | Apr 23 | Oct 20 |
| Dickson City, PA | 9.9 mi | Apr 23 | Oct 20 |
| Clarks Summit, PA | 12 mi | Apr 23 | Oct 20 |
| Dunmore, PA | 12 mi | Apr 23 | Oct 20 |
| Scranton, PA | 14 mi | Apr 23 | Oct 20 |
| Taylor, PA | 16 mi | Apr 23 | Oct 20 |
| Moosic, PA | 18 mi | Apr 23 | Oct 20 |
| Old Forge, PA | 19 mi | Apr 23 | Oct 20 |
Frequently asked questions
When is the last frost in Carbondale?
On average, the last spring frost (32°F) in Carbondale is around May 14. In about 1 year in 10 it comes after May 29, and in 9 years in 10 it comes after April 30.
When is the first frost in Carbondale?
The first fall frost (32°F) usually arrives around October 1. There’s a 10% chance of a freeze by September 21 and a 90% chance by October 15.
Can it frost in Carbondale 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 27.
What growing zone is Carbondale?
Carbondale is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 18407. See growing zones in Pennsylvania.
More: all Pennsylvania frost dates · Pennsylvania growing zones · frost vs. freeze