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USDA Hardiness Zone 8b

Frost Dates for 36522 — Citronelle, Alabama

NOAA 1991–2020 normals from Chatom, AL (285 ft), 27 miles north.

Updated

In Citronelle, the last spring frost (32°F) is around March 26 in half of years and has passed by April 11 in nine years out of ten. The first fall frost comes around November 8, as early as October 25 one year in ten, leaving a typical freeze-free season of 228 days (NOAA, Chatom, AL).

Last spring frost
March 26

50% probability

First fall frost
November 8

50% probability

Growing season
228 days

freeze-free, 50%

Hardiness zone
8b

15 to 20°F (-9.4 to -6.7°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
15%

3 of 20 observed

Snow per year
0.2"

NOAA normal

Frost risk by date in Citronelle

Half of springs at Chatom, AL see their last 32°F night by March 26; only one in ten is past it by March 3, and one in ten still has one after April 11. Planting tender crops after April 3 leaves a 30% risk of a frost on them, after April 6 20%, and after April 11 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 80% of the 115 Alabama stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 8 in half of years, as early as October 25 one year in ten, and holds off past November 27 one year in ten. A hard freeze of 28°F follows 12 days later, around November 20; in spring the one-in-ten date for 28°F is March 31, 11 days before the 32°F one. The freeze-free season lasts 228 days in a typical year, shorter than at 58% of the 115 Alabama stations; it reaches 254 days one year in ten and falls short of 203 one year in ten. On average 51 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 13 days longer, to about April 8, and return around October 29. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 57%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 21Mar 28Apr 2Apr 5Apr 8Apr 11Apr 15Apr 19Apr 24
32°FMar 3Mar 13Mar 18Mar 23Mar 26Mar 30Apr 3Apr 6Apr 11
28°FFeb 17Feb 25Feb 28Mar 5Mar 10Mar 15Mar 19Mar 24Mar 31
24°FJan 27Feb 5Feb 13Feb 18Feb 24Feb 28Mar 4Mar 9Mar 17
20°F91% of yrsJan 1Jan 14Jan 24Jan 30Feb 4Feb 10Feb 17Feb 24Mar 3
16°F57% of yrsDec 28Jan 4Jan 12Jan 17Jan 24Jan 30Feb 2Feb 7Feb 18
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 15Oct 20Oct 24Oct 26Oct 29Nov 1Nov 3Nov 6Nov 12
32°FOct 25Oct 30Nov 1Nov 5Nov 8Nov 11Nov 15Nov 20Nov 27
28°FNov 2Nov 7Nov 12Nov 16Nov 20Nov 25Nov 30Dec 4Dec 12
24°FNov 11Nov 19Nov 25Dec 1Dec 4Dec 9Dec 16Dec 27Jan 6
20°F91% of yrsNov 25Dec 4Dec 12Dec 21Dec 29Jan 2Jan 7Jan 14Jan 30
16°F57% of yrsDec 9Dec 23Dec 30Jan 3Jan 8Jan 13Jan 20Jan 28Feb 4

Freeze probabilities 1991–2020 at Chatom, 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 36522 →Compare Citronelle with another place →

Weather by month in Citronelle

July is the warmest month at Chatom, AL, averaging 92°F by day and 69°F at night; January is the coldest at 59°F and 34°F. A freezing night is all but certain in every month from November to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 89% of years and April still brings one in 36% of years.

Warmth for growing adds up to 5,782 growing degree days a year (base 50°F), more than at 63% of the 115 Alabama stations. 41% of them (2,383) have built up by the end of June, and July adds the most, 945.

Monthly normals 1991–2020 at Chatom, AL
MonthHigh °FLow °F32°F nightNights ≤ 32°FGDD 50°F
Jan5934100%1583
Feb643797%11115
Mar724389%5260
Apr784936%<1414
May85580%0671
Jun90660%0841
Jul92690%0945
Aug91690%0928
Sep87640%0763
Oct795225%<1473
Nov694191%7193
Dec6236100%1395

Monthly normals 1991–2020 at Chatom, AL (285 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, Mobile, AL, 27 miles south of Citronelle, has a last frost 23 days earlier (March 3), a first frost 17 days later (November 25), a season 40 days longer.

Frost dates for 36695 (Mobile) →

When it snows in Citronelle, Alabama

Measurable snow is rare here: only 3 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Leakesville, MS, 18 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 36522

What to do and when, from the 50% frost dates for Citronelle, Alabama
WhenWhat to do
January 15 – January 29Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 29 – February 12Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 26 – March 12Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 26 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 16Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 25Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 8 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 36522 is 27 miles from Chatom, AL, which stands at 285 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. That is farther than 25 miles, so local frost can differ noticeably from these figures. 4 other ZIP codes share the station; its figures are presented in full for 36558 (Millry). The 2023 USDA Plant Hardiness Zone Map lists ZIP 36522 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°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 8b places in Alabama