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Will it freeze in Bloomsburg in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Mon, Nov 9: 32°F (Mon, Nov 9, 6:00 PM EST to Tue, Nov 10, 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 · Areas Of Fog
- Fri, Nov 6 43°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 39°F Above 36°F · Chance Light Rain then Mostly Cloudy
- Sun, Nov 8 35°F Frost possible · Mostly Clear
- Mon, Nov 9 32°F Freeze · Mostly Clear
- Tue, Nov 10 32°F Freeze · Partly Cloudy
- Wed, Nov 11 29°F Freeze · 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 Bloomsburg
The median first fall hard-freeze date (28°F) is November 2, from NOAA’s 1991–2020 Climate Normals at Bear Gap. 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 22 · May 9 · May 26 | Sep 24 · Oct 6 · Oct 22 | 148 days |
| 32°F freeze | Apr 12 · Apr 27 · May 15 | Oct 4 · Oct 20 · Nov 5 | 172 days |
| 28°F hard freeze | Mar 28 · Apr 13 · May 3 | Oct 16 · Nov 2 · Nov 18 | 202 days |
Average high temperature by month
1991–2020 normals at Bear Gap
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 Bloomsburg, PA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Bear Gap (station USC00360457, elevation 1,015 ft), 13 mi from Bloomsburg. 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 Bloomsburg
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Berwick, PA | 11 mi | May 4 | Oct 11 |
| Mount Carmel, PA | 14 mi | Apr 27 | Oct 20 |
| Shamokin, PA | 16 mi | Apr 27 | Oct 20 |
| Sunbury, PA | 20 mi | Apr 30 | Oct 13 |
| Milton, PA | 21 mi | Apr 26 | Oct 20 |
| West Hazleton, PA | 22 mi | Apr 30 | Oct 22 |
| Lewisburg, PA | 23 mi | Apr 26 | Oct 20 |
| Hazleton, PA | 25 mi | Apr 30 | Oct 22 |
| Selinsgrove, PA | 25 mi | Apr 25 | Oct 22 |
| Pottsville, PA | 25 mi | Apr 30 | Oct 22 |
Frequently asked questions
When is the last frost in Bloomsburg?
On average, the last spring frost (32°F) in Bloomsburg is around April 27. In about 1 year in 10 it comes after May 15, and in 9 years in 10 it comes after April 12.
When is the first frost in Bloomsburg?
The first fall frost (32°F) usually arrives around October 20. There’s a 10% chance of a freeze by October 4 and a 90% chance by November 5.
Can it frost in Bloomsburg 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 9.
What growing zone is Bloomsburg?
Bloomsburg 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 17815. See growing zones in Pennsylvania.
More: all Pennsylvania frost dates · Pennsylvania growing zones · frost vs. freeze