Frost dates 2026–2027

Frost dates for Titusville, Pennsylvania

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Titusville Wtr Wks, 1.2 mi away (close match).

Last spring frostMay 12
First fall frostOct 10
149 frost-free days
Last spring frostMay 121 year in 10 after May 28
First fall frostOct 101 year in 10 by Sep 25
Growing season149 daysbetween median 32°F dates
Hardiness zoneZone 6a−10 to −5°F average extreme low

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Will it freeze in Titusville in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Sun, Nov 8: 31°F (Sun, Nov 8, 6:00 PM EST to Mon, Nov 9, 6:00 AM EST).

Tonight: forecast low 44°F. Above 36°F.

NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.

6 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 Titusville

The median first fall hard-freeze date (28°F) is October 21, from NOAA’s 1991–2020 Climate Normals at Titusville Wtr Wks. 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 10 · May 25 · Jun 7 Sep 14 · Sep 29 · Oct 11 124 days
32°F freeze Apr 29 · May 12 · May 28 Sep 25 · Oct 10 · Oct 23 149 days
28°F hard freeze Apr 17 · May 1 · May 19 Oct 4 · Oct 21 · Nov 5 172 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00368888. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Titusville Wtr Wks

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 Titusville, PA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Titusville Wtr Wks (station USC00368888, elevation 1,220 ft), 1.2 mi from Titusville. 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 Titusville

CityDistanceLast spring frostFirst fall frost
Oil City, PA 14 mi May 2 Oct 23
Franklin, PA 19 mi May 2 Oct 23
Corry, PA 21 mi May 7 Oct 10
Meadville, PA 25 mi Apr 30 Oct 23
Edinboro, PA 29 mi May 7 Oct 10
Warren, PA 31 mi May 4 Oct 21
Grove City, PA 39 mi May 7 Oct 14
Jamestown, NY 39 mi May 8 Oct 13
Erie, PA 40 mi Apr 26 Nov 4
Greenville, PA 40 mi May 4 Oct 14

Frequently asked questions

When is the last frost in Titusville?

On average, the last spring frost (32°F) in Titusville is around May 12. In about 1 year in 10 it comes after May 28, and in 9 years in 10 it comes after April 29.

When is the first frost in Titusville?

The first fall frost (32°F) usually arrives around October 10. There’s a 10% chance of a freeze by September 25 and a 90% chance by October 23.

Can it frost in Titusville 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 25.

What growing zone is Titusville?

Titusville 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 16354. See growing zones in Pennsylvania.

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