Frost dates 2026–2027

Frost dates for Nanticoke, Pennsylvania

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Francis E Walter Dam, 15 mi away (close match).

Last spring frostMay 7
First fall frostOct 6
153 frost-free days
Last spring frostMay 71 year in 10 after May 23
First fall frostOct 61 year in 10 by Sep 22
Growing season153 daysbetween median 32°F dates
Hardiness zoneZone 6b−5 to 0°F average extreme low

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Will it freeze in Nanticoke 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 53°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.

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 Nanticoke

The median first fall hard-freeze date (28°F) is October 19, from NOAA’s 1991–2020 Climate Normals at Francis E Walter Dam. This is the 50% probability date, not a forecast for this year.

TemperatureLast 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 2 · May 20 · Jun 2 Sep 13 · Sep 27 · Oct 8 129 days
32°F freeze Apr 22 · May 7 · May 23 Sep 22 · Oct 6 · Oct 22 153 days
28°F hard freeze Apr 9 · Apr 24 · May 11 Oct 3 · Oct 19 · Nov 4 176 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00363018. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Francis E Walter Dam

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 Nanticoke, PA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Francis E Walter Dam (station USC00363018, elevation 1,509 ft), 15 mi from Nanticoke. 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 Nanticoke

CityDistanceLast spring frostFirst fall frost
Plymouth, PA 3.7 mi Apr 23 Oct 20
Wilkes-Barre, PA 7.5 mi Apr 23 Oct 20
Kingston, PA 7.5 mi Apr 23 Oct 20
Swoyersville, PA 9.3 mi Apr 23 Oct 20
Exeter, PA 13 mi Apr 23 Oct 20
Pittston, PA 14 mi Apr 23 Oct 20
Duryea, PA 16 mi Apr 23 Oct 20
West Hazleton, PA 16 mi Apr 30 Oct 22
Berwick, PA 17 mi May 4 Oct 11
Hazleton, PA 17 mi Apr 30 Oct 22

Frequently asked questions

When is the last frost in Nanticoke?

On average, the last spring frost (32°F) in Nanticoke is around May 7. In about 1 year in 10 it comes after May 23, and in 9 years in 10 it comes after April 22.

When is the first frost in Nanticoke?

The first fall frost (32°F) usually arrives around October 6. There’s a 10% chance of a freeze by September 22 and a 90% chance by October 22.

Can it frost in Nanticoke 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 20.

What growing zone is Nanticoke?

Nanticoke 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 18634. See growing zones in Pennsylvania.

More: all Pennsylvania frost dates · Pennsylvania growing zones · frost vs. freeze