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USDA Hardiness Zone 9a

Frost Dates for 32568 — Mc David, Florida

NOAA 1991–2020 normals from Bay Minette, AL (271 ft), 18 miles west.

Updated

In Mc David, the last spring frost (32°F) is around February 28 in half of years and has passed by March 21 in nine years out of ten. The first fall frost comes around November 25, as early as November 7 one year in ten, leaving a typical freeze-free season of 272 days (NOAA, Bay Minette, AL).

Last spring frost
February 28

50% probability

First fall frost
November 25

50% probability

Growing season
272 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
0.2"

NOAA normal

Frost risk by date in Mc David

Half of springs at Bay Minette, AL see their last 32°F night by February 28; only one in ten is past it by February 3, and one in ten still has one after March 21. Planting tender crops after March 9 leaves a 30% risk of a frost on them, after March 15 20%, and after March 21 10%. The 21 days between the even-odds date and the one-in-ten date is narrower than at 75% of the 101 Florida 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 25 in half of years, as early as November 7 one year in ten, and holds off past December 20 one year in ten. A hard freeze of 28°F follows 17 days later, around December 12; in spring the one-in-ten date for 28°F is March 10, 11 days before the 32°F one. The freeze-free season lasts 272 days in a typical year, shorter than at 76% of the 102 Florida stations; it reaches 306 days one year in ten and falls short of 244 one year in ten. On average 20 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 15 days longer, to about March 15, and return around November 14. Nights of 24°F, cold enough to damage hardier plants, come in 80% of winters and 16°F in 15%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FFeb 24Mar 1Mar 6Mar 11Mar 15Mar 18Mar 23Mar 27Apr 3
32°FFeb 3Feb 13Feb 19Feb 25Feb 28Mar 4Mar 9Mar 15Mar 21
28°F98% of yrsJan 13Jan 24Jan 31Feb 5Feb 12Feb 18Feb 25Mar 2Mar 10
24°F80% of yrsDec 30Jan 9Jan 17Jan 23Jan 30Feb 2Feb 6Feb 17Feb 28
20°F44% of yrstoo rare for a date
16°F15% 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 31Nov 4Nov 7Nov 11Nov 14Nov 17Nov 21Nov 24Dec 1
32°FNov 7Nov 12Nov 17Nov 21Nov 25Nov 29Dec 3Dec 9Dec 20
28°F98% of yrsNov 19Nov 27Dec 1Dec 6Dec 12Dec 20Dec 30Jan 4Jan 14
24°F80% of yrsDec 3Dec 11Dec 18Dec 28Jan 1Jan 6Jan 13Jan 21Feb 1
20°F44% of yrstoo rare for a date
16°F15% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Bay Minette, 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 32568 →Compare Mc David with another place →

Weather by month in Mc David

July is the warmest month at Bay Minette, AL, averaging 90°F by day and 74°F at night; January is the coldest at 61°F and 41°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 85% of years and March still brings one in 48% of years.

Warmth for growing adds up to 6,695 growing degree days a year (base 50°F), fewer than at 89% of the 158 Florida stations. 42% of them (2,835) have built up by the end of June, and July adds the most, 984. Precipitation totals 71.9 inches a year, most in July (8.2") and least in October (3.9"); May to September bring 50% of it.

Monthly normals 1991–2020 at Bay Minette, AL
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan61416.197%8139
Feb65445.185%4178
Mar71504.948%1352
Apr77575.42%0511
May84655.90%0756
Jun89717.70%0898
Jul90748.20%0984
Aug90737.10%0976
Sep87697.30%0843
Oct79593.92%<1587
Nov70494.660%2298
Dec63435.786%6172

Monthly normals 1991–2020 at Bay Minette, AL (271 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, Atmore, AL, 21 miles north of Mc David, has the same 50% last-frost date, a first frost 2 days later (November 27), a season 2 days shorter.

Frost dates for 36502 (Atmore) →

When it snows in Mc David, Florida

Measurable snow is rare here: only 2 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Bay Minette, AL, 18.2 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 32568

What to do and when, from the 50% frost dates for Mc David, Florida
WhenWhat to do
December 20 – January 3Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 3 – January 17Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
January 31 – February 14Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
February 28 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by September 2Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by November 11Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 25 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 32568 is 18 miles from Bay Minette, AL, which stands at 271 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 36507 (Bay Minette). The 2023 USDA Plant Hardiness Zone Map lists ZIP 32568 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 Florida →

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 Florida