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USDA Hardiness Zone 7b

Frost Dates for 35565 — Haleyville, Alabama

NOAA 1991–2020 normals from Haleyville, AL (920 ft), 1 miles west.

Updated

In Haleyville, the last spring frost (32°F) is around March 29 in half of years and has passed by April 16 in nine years out of ten. The first fall frost comes around November 9, as early as October 25 one year in ten, leaving a typical freeze-free season of 228 days (NOAA, Haleyville, AL).

Last spring frost
March 29

50% probability

First fall frost
November 9

50% probability

Growing season
228 days

freeze-free, 50%

Hardiness zone
7b

5 to 10°F (-15.0 to -12.2°C) coldest night

First snow
January 16

median, 1991–2020

Last snow
February 12

median, 1991–2020

Winters with snow
58%

11 of 19 observed

Snow per year
0.9"

NOAA normal

Frost risk by date in Haleyville

Half of springs at Haleyville, AL see their last 32°F night by March 29; only one in ten is past it by March 5, and one in ten still has one after April 16. Planting tender crops after April 5 leaves a 30% risk of a frost on them, after April 10 20%, and after April 16 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 46% of the 115 Alabama stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 9 in half of years, as early as October 25 one year in ten, and holds off past November 28 one year in ten. A hard freeze of 28°F follows 12 days later, around November 21; in spring the one-in-ten date for 28°F is April 3, 13 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 201 one year in ten. On average 57 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 12 days longer, to about April 10, and return around October 30. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 83%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 21Mar 30Apr 3Apr 7Apr 10Apr 13Apr 18Apr 22Apr 28
32°FMar 5Mar 14Mar 19Mar 24Mar 29Apr 1Apr 5Apr 10Apr 16
28°FFeb 20Feb 28Mar 4Mar 9Mar 14Mar 17Mar 22Mar 27Apr 3
24°FJan 31Feb 10Feb 18Feb 24Feb 28Mar 4Mar 9Mar 14Mar 20
20°F98% of yrsJan 13Jan 23Jan 31Feb 5Feb 11Feb 18Feb 25Mar 3Mar 11
16°F83% of yrsJan 2Jan 11Jan 18Jan 24Jan 30Feb 3Feb 10Feb 18Mar 2
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 16Oct 20Oct 23Oct 27Oct 30Nov 1Nov 4Nov 8Nov 15
32°FOct 25Oct 31Nov 3Nov 5Nov 9Nov 12Nov 16Nov 21Nov 28
28°FNov 4Nov 8Nov 13Nov 17Nov 21Nov 26Dec 1Dec 5Dec 12
24°FNov 11Nov 18Nov 25Dec 1Dec 3Dec 7Dec 14Dec 24Jan 1
20°F98% of yrsNov 23Dec 1Dec 6Dec 13Dec 22Dec 28Jan 2Jan 8Jan 16
16°F83% of yrsDec 6Dec 18Dec 26Jan 1Jan 3Jan 7Jan 12Jan 19Jan 31

Freeze probabilities 1991–2020 at Haleyville, 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 35565 →Compare Haleyville with another place →

Weather by month in Haleyville

July is the warmest month at Haleyville, AL, averaging 89°F by day and 69°F at night; January is the coldest at 51°F and 33°F. A freezing night is all but certain in every month from December to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 42% of years.

Warmth for growing adds up to 5,133 growing degree days a year (base 50°F), fewer than at 70% of the 115 Alabama stations. 39% of them (2,026) have built up by the end of June, and July adds the most, 905. Precipitation totals 66.2 inches a year, most in December (6.8") and least in September (4.4"); May to September bring 39% of it.

Monthly normals 1991–2020 at Haleyville, AL
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan51335.9100%1844
Feb56376.2100%1264
Mar65435.791%6194
Apr73505.942%1356
May79595.61%0589
Jun86665.60%0780
Jul89695.40%0905
Aug89695.00%0893
Sep84634.40%0708
Oct74524.622%<1408
Nov62425.190%7141
Dec53366.899%1453

Monthly normals 1991–2020 at Haleyville, AL (920 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, Russellville 4 SSE, AL, 17 miles north of Haleyville and 200 feet lower, has a last frost 7 days later (April 5), a first frost 12 days earlier (October 28), a season 23 days shorter.

Frost dates for 35581 (Phil Campbell) →

When it snows in Haleyville, Alabama

The first measurable snow (0.1 inch or more) in Haleyville usually arrives around January 16, and the last of the season around February 12. Those are the middle dates across the winters of 1991–2020 at Haleyville, AL, 1.4 miles away: half of years saw snow earlier, half later. Snow fell in 58% of those winters. The last 32°F night of spring typically comes 45 days after the last snow.

Planting calendar for 35565

What to do and when, from the 50% frost dates for Haleyville, Alabama
WhenWhat to do
January 18 – February 1Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 1 – February 15Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 1 – March 15Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 29 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 17Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 26Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 9 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 35565 is 1 mile from Haleyville, AL, which stands at 920 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 35565 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°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 7b places in Alabama