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USDA Hardiness Zone 8a

Frost Dates for 35763 — Owens Cross Roads, Alabama

NOAA 1991–2020 normals from Owens Cross Roads 3S, AL (590 ft), 5 miles south.

Updated

In Owens Cross Roads, the last spring frost (32°F) is around April 4 in half of years and has passed by April 20 in nine years out of ten. The first fall frost comes around October 30, as early as October 17 one year in ten, leaving a typical freeze-free season of 210 days (NOAA, Owens Cross Roads 3S, AL).

Last spring frost
April 4

50% probability

First fall frost
October 30

50% probability

Growing season
210 days

freeze-free, 50%

Hardiness zone
8a

10 to 15°F (-12.2 to -9.4°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
19%

3 of 16 observed

Snow per year
—

NOAA normal

Frost risk by date in Owens Cross Roads

Half of springs at Owens Cross Roads 3S, AL see their last 32°F night by April 4; only one in ten is past it by March 18, and one in ten still has one after April 20. Planting tender crops after April 10 leaves a 30% risk of a frost on them, after April 14 20%, and after April 20 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 October 30 in half of years, as early as October 17 one year in ten, and holds off past November 13 one year in ten. A hard freeze of 28°F follows 9 days later, around November 8; in spring the one-in-ten date for 28°F is April 9, 11 days before the 32°F one. The freeze-free season lasts 210 days in a typical year, shorter than at 85% of the 115 Alabama stations; it reaches 229 days one year in ten and falls short of 189 one year in ten. On average 78 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 16, and return around October 22. Severe cold of 16°F or below comes in 91% of winters, usually between January 1 and February 4.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 31Apr 5Apr 9Apr 12Apr 16Apr 19Apr 22Apr 26Apr 30
32°FMar 18Mar 24Mar 29Apr 1Apr 4Apr 7Apr 10Apr 14Apr 20
28°FMar 2Mar 10Mar 15Mar 19Mar 24Mar 27Mar 31Apr 4Apr 9
24°FFeb 13Feb 22Feb 28Mar 4Mar 8Mar 13Mar 17Mar 23Mar 30
20°FJan 23Feb 2Feb 8Feb 15Feb 20Feb 27Mar 2Mar 8Mar 15
16°F91% of yrsJan 7Jan 17Jan 24Jan 31Feb 4Feb 8Feb 16Feb 25Mar 3
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 8Oct 13Oct 17Oct 19Oct 22Oct 23Oct 26Oct 29Nov 2
32°FOct 17Oct 21Oct 25Oct 27Oct 30Nov 1Nov 4Nov 7Nov 13
28°FOct 26Oct 31Nov 3Nov 5Nov 8Nov 11Nov 15Nov 20Nov 30
24°FNov 5Nov 9Nov 14Nov 17Nov 21Nov 25Nov 30Dec 5Dec 14
20°FNov 15Nov 21Nov 27Dec 1Dec 6Dec 12Dec 23Dec 31Jan 9
16°F91% of yrsDec 1Dec 8Dec 16Dec 25Jan 1Jan 5Jan 10Jan 16Jan 30

Freeze probabilities 1991–2020 at Owens Cross Roads 3S, 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 35763 →Compare Owens Cross Roads with another place →

Weather by month in Owens Cross Roads

July is the warmest month at Owens Cross Roads 3S, AL, averaging 88°F by day and 68°F at night; January is the coldest at 50°F and 30°F. A freezing night is all but certain in every month from November 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 61% of years.

Warmth for growing adds up to 4,600 growing degree days a year (base 50°F), fewer than at 95% of the 115 Alabama stations. 38% of them (1,756) have built up by the end of June, and July adds the most, 873. Precipitation totals 58.0 inches a year, most in December (6.2") and least in August (3.7"); May to September bring 37% of it.

Monthly normals 1991–2020 at Owens Cross Roads 3S, AL
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan50305.9100%1932
Feb55325.5100%1643
Mar63395.597%9127
Apr71465.161%1284
May78564.90%0531
Jun86644.50%0739
Jul88684.20%0873
Aug88673.70%0849
Sep84594.20%0645
Oct74473.754%2342
Nov62374.698%1292
Dec53326.2100%1743

Monthly normals 1991–2020 at Owens Cross Roads 3S, AL (590 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, Huntsville International Airport, AL, 18 miles west of Owens Cross Roads, has a last frost 11 days earlier (March 24), a first frost 9 days later (November 8), a season 19 days longer.

Frost dates for 35758 (Madison) →

When it snows in Owens Cross Roads, Alabama

Measurable snow is rare here: only 3 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Guntersville No.2, AL, 21.6 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 35763

What to do and when, from the 50% frost dates for Owens Cross Roads, Alabama
WhenWhat to do
January 24 – February 7Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 7 – February 21Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 7 – March 21Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 4 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 7Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 16Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 30 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 35763 is 5 miles from Owens Cross Roads 3S, AL, which stands at 590 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 9 other ZIP codes share the station; its figures are presented in full for 35811 (Huntsville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 35763 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°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 8a places in Alabama