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USDA Hardiness Zone 9a

Frost Dates for 36535 — Foley, Alabama

NOAA 1991–2020 normals from Robertsdale, AL (161 ft), 12 miles north.

Updated

In Foley, the last spring frost (32°F) is around March 5 in half of years and has passed by March 26 in nine years out of ten. The first fall frost comes around November 23, as early as November 5 one year in ten, leaving a typical freeze-free season of 264 days (NOAA, Robertsdale, AL).

Last spring frost
March 5

50% probability

First fall frost
November 23

50% probability

Growing season
264 days

freeze-free, 50%

Hardiness zone
9a

20 to 25°F (-6.7 to -3.9°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
10%

2 of 20 observed

Snow per year
0.1"

NOAA normal

Frost risk by date in Foley

Half of springs at Robertsdale, AL see their last 32°F night by March 5; only one in ten is past it by February 12, and one in ten still has one after March 26. Planting tender crops after March 14 leaves a 30% risk of a frost on them, after March 19 20%, and after March 26 10%. The 21 days between the even-odds date and the one-in-ten date is wider than at 88% of the 115 Alabama stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by November 23 in half of years, as early as November 5 one year in ten, and holds off past December 15 one year in ten. A hard freeze of 28°F follows 16 days later, around December 9; in spring the one-in-ten date for 28°F is March 14, 12 days before the 32°F one. The freeze-free season lasts 264 days in a typical year, longer than at 90% of the 115 Alabama stations; it reaches 298 days one year in ten and falls short of 236 one year in ten. On average 28 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 16 days longer, to about March 21, and return around November 12. Nights of 24°F, cold enough to damage hardier plants, come in 88% of winters and 16°F in 19%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FFeb 28Mar 7Mar 12Mar 17Mar 21Mar 25Mar 29Apr 2Apr 8
32°FFeb 12Feb 20Feb 26Mar 1Mar 5Mar 10Mar 14Mar 19Mar 26
28°F99% of yrsJan 24Jan 31Feb 8Feb 16Feb 21Feb 25Feb 28Mar 6Mar 14
24°F88% of yrsJan 4Jan 17Jan 26Jan 31Feb 3Feb 9Feb 16Feb 23Mar 1
20°F55% of yrsDec 27Jan 4Jan 10Jan 18Jan 23Jan 31Feb 2Feb 9Feb 20
16°F19% of yrstoo rare for a date
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 27Nov 1Nov 5Nov 8Nov 12Nov 16Nov 19Nov 23Nov 30
32°FNov 5Nov 11Nov 15Nov 19Nov 23Nov 28Dec 1Dec 6Dec 15
28°F99% of yrsNov 17Nov 24Dec 1Dec 4Dec 9Dec 18Dec 26Jan 2Jan 10
24°F88% of yrsDec 1Dec 10Dec 19Dec 28Jan 2Jan 6Jan 12Jan 19Feb 1
20°F55% of yrsDec 13Dec 26Jan 1Jan 5Jan 10Jan 16Jan 22Jan 31Feb 6
16°F19% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Robertsdale, AL, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 36535 →Compare Foley with another place →

Weather by month in Foley

July is the warmest month at Robertsdale, AL, averaging 90°F by day and 72°F at night; January is the coldest at 61°F and 39°F. A freezing night is all but certain in January (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 90% of years and March still brings one in 60% of years.

Warmth for growing adds up to 6,365 growing degree days a year (base 50°F), more than at 84% of the 115 Alabama stations. 42% of them (2,657) have built up by the end of June, and July adds the most, 961. Precipitation totals 69.0 inches a year, most in July (9.1") and least in October (4.2"); May to September bring 49% of it.

Monthly normals 1991–2020 at Robertsdale, AL
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan61395.598%10126
Feb65424.590%6160
Mar71485.560%2317
Apr77545.63%0466
May84624.40%0718
Jun88707.10%0870
Jul90729.10%0961
Aug90726.90%0950
Sep87676.40%0807
Oct79574.23%0553
Nov70474.865%3274
Dec63415.089%7164

Monthly normals 1991–2020 at Robertsdale, AL (161 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Fairhope 3 NE, AL, 15 miles northwest of Foley, has a last frost 10 days later (March 15), a first frost 4 days earlier (November 19), a season 13 days shorter.

Frost dates for 36526 (Daphne) →

When it snows in Foley, Alabama

Measurable snow is rare here: only 2 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Robertsdale, AL, 11.6 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 36535

What to do and when, from the 50% frost dates for Foley, Alabama
WhenWhat to do
December 25 – January 8Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 8 – January 22Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 5 – February 19Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 5 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 31Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by November 9Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 23 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 36535 is 12 miles from Robertsdale, AL, which stands at 161 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 36535 in zone 9a, the band where the coldest night of the year averaged 20 to 25°F (-6.7 to -3.9°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Alabama →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

ZIP codes measured at the same station

Other zone 9a places in Alabama