Frost dates 2026–2027

Frost dates for Florence, Oregon

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Florence #2, 1.1 mi away (close match).

Last spring frostApr 10
First fall frostNov 15
220 frost-free days
Last spring frostApr 101 year in 10 after May 5
First fall frostNov 151 year in 10 by Oct 23
Growing season220 daysbetween median 32°F dates
Hardiness zoneZone 9a20 to 25°F average extreme low

Checking current alerts… View NWS forecast and alerts.

Will it freeze in Florence in the next 7 nights?

No overnight lows at or below 32°F are forecast in Florence during the next 7 nights in the available NWS frost forecast.

Tonight: forecast low 43°F. Above 36°F.

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

No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.

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 Florence

The median first fall hard-freeze date (28°F) is December 12, from NOAA’s 1991–2020 Climate Normals at Florence #2. 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 Apr 18 · May 8 · May 30 Sep 17 · Oct 15 · Nov 9 159 days
32°F freeze Mar 6 · Apr 10 · May 5 Oct 23 · Nov 15 · Dec 13 220 days
28°F hard freeze Dec 25 · Feb 26 · Apr 1 Nov 12 · Dec 12 · Feb 17 294 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00352973. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Florence #2

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 Florence, OR come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Florence #2 (station USC00352973, elevation 75 ft), 1.1 mi from Florence. 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 Florence

CityDistanceLast spring frostFirst fall frost
Veneta, OR 38 mi Apr 18 Oct 25
North Bend, OR 41 mi Feb 21 Dec 9
Coos Bay, OR 43 mi Feb 21 Dec 9
Newport, OR 43 mi Feb 19 Dec 16
Junction City, OR 47 mi Apr 11 Oct 23
Eugene, OR 49 mi Apr 11 Oct 23
Philomath, OR 53 mi May 15 Oct 8
Cottage Grove, OR 54 mi Apr 24 Oct 25
Creswell, OR 55 mi Apr 24 Oct 25
Springfield, OR 56 mi Apr 11 Oct 23

Frequently asked questions

When is the last frost in Florence?

On average, the last spring frost (32°F) in Florence is around April 10. In about 1 year in 10 it comes after May 5, and in 9 years in 10 it comes after March 6.

When is the first frost in Florence?

The first fall frost (32°F) usually arrives around November 15. There’s a 10% chance of a freeze by October 23 and a 90% chance by December 13.

Can it frost in Florence 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 8.

What growing zone is Florence?

Florence is in USDA Plant Hardiness Zone 9a (average annual extreme minimum temperature 20 to 25°F), based on the 2023 USDA map for ZIP code 97439. See growing zones in Oregon.

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