Frost dates 2026–2027

Frost dates for Bay City, Texas

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Bay City Wtr Wks, 0.9 mi away (close match).

Last spring frostFeb 20
First fall frostDec 3
290 frost-free days
Last spring frostFeb 201 year in 10 after Mar 15
First fall frostDec 31 year in 10 by Nov 10
Growing season290 daysbetween median 32°F dates
Hardiness zoneZone 9b25 to 30°F average extreme low

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Will it freeze in Bay City in the next 7 nights?

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

Tonight: forecast low 63°F. Above 36°F.

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

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 Bay City

The median first fall hard-freeze date (28°F) is December 22, from NOAA’s 1991–2020 Climate Normals at Bay City 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 Feb 11 · Mar 7 · Apr 1 Nov 3 · Nov 20 · Dec 9 258 days
32°F freeze Jan 19 · Feb 20 · Mar 15 Nov 10 · Dec 3 · Jan 1 290 days
28°F hard freeze Dec 27 · Jan 31 · Mar 5 Nov 24 · Dec 22 · Jan 23 329 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00410569. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Bay City 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 Bay City, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Bay City Wtr Wks (station USC00410569, elevation 52 ft), 0.9 mi from Bay City. 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 Bay City

CityDistanceLast spring frostFirst fall frost
El Campo, TX 24 mi Feb 23 Dec 5
Wharton, TX 25 mi Feb 23 Dec 5
Lake Jackson, TX 31 mi Feb 13 Dec 8
Clute, TX 34 mi Jan 27 Jan 1
Angleton, TX 35 mi Jan 29 Dec 31
Freeport, TX 37 mi Jan 27 Jan 1
Rosenberg, TX 40 mi Feb 9 Dec 13
Edna, TX 42 mi Feb 18 Dec 4
Richmond, TX 43 mi Feb 9 Dec 13
Iowa Colony, TX 45 mi Jan 31 Dec 27

Frequently asked questions

When is the last frost in Bay City?

On average, the last spring frost (32°F) in Bay City is around February 20. In about 1 year in 10 it comes after March 15, and in 9 years in 10 it comes after January 19.

When is the first frost in Bay City?

The first fall frost (32°F) usually arrives around December 3. There’s a 10% chance of a freeze by November 10 and a 90% chance by January 1.

Can it frost in Bay City 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 March 7.

What growing zone is Bay City?

Bay City is in USDA Plant Hardiness Zone 9b (average annual extreme minimum temperature 25 to 30°F), based on the 2023 USDA map for ZIP code 77414. See growing zones in Texas.

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