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USDA Hardiness Zone 8a

Frost Dates for 35611 — Athens, Alabama

NOAA 1991–2020 normals from Athens, AL (689 ft), 4 miles east.

Updated

In Athens, the last spring frost (32°F) is around March 20 in half of years and has passed by April 7 in nine years out of ten. The first fall frost comes around November 12, as early as November 1 one year in ten, leaving a typical freeze-free season of 238 days (NOAA, Athens, AL).

Last spring frost
March 20

50% probability

First fall frost
November 12

50% probability

Growing season
238 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
43%

10 of 23 observed

Snow per year
1.3"

NOAA normal

Frost risk by date in Athens

Half of springs at Athens, AL see their last 32°F night by March 20; only one in ten is past it by March 1, and one in ten still has one after April 7. Planting tender crops after March 29 leaves a 30% risk of a frost on them, after April 2 20%, and after April 7 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 12 in half of years, as early as November 1 one year in ten, and holds off past December 1 one year in ten. A hard freeze of 28°F follows 12 days later, around November 24; in spring the one-in-ten date for 28°F is March 26, 12 days before the 32°F one. The freeze-free season lasts 238 days in a typical year, longer than at 61% of the 115 Alabama stations; it reaches 265 days one year in ten and falls short of 215 one year in ten. On average 63 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 April 4, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 68%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 17Mar 24Mar 29Apr 1Apr 4Apr 6Apr 10Apr 14Apr 19
32°FMar 1Mar 8Mar 13Mar 17Mar 20Mar 24Mar 29Apr 2Apr 7
28°FFeb 13Feb 21Feb 26Mar 1Mar 6Mar 11Mar 16Mar 20Mar 26
24°FJan 26Feb 2Feb 9Feb 14Feb 19Feb 25Mar 1Mar 6Mar 15
20°F93% of yrsJan 8Jan 17Jan 25Jan 31Feb 4Feb 10Feb 16Feb 24Mar 3
16°F68% of yrsDec 31Jan 8Jan 14Jan 20Jan 26Jan 31Feb 3Feb 9Feb 20
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 22Oct 25Oct 28Oct 31Nov 1Nov 4Nov 7Nov 10Nov 15
32°FNov 1Nov 3Nov 6Nov 9Nov 12Nov 15Nov 18Nov 24Dec 1
28°FNov 6Nov 12Nov 16Nov 20Nov 24Nov 29Dec 2Dec 7Dec 18
24°FNov 16Nov 25Dec 1Dec 4Dec 10Dec 19Dec 25Jan 1Jan 9
20°F93% of yrsDec 2Dec 10Dec 21Dec 27Jan 1Jan 5Jan 10Jan 16Jan 29
16°F68% of yrsDec 20Dec 29Jan 1Jan 5Jan 9Jan 14Jan 18Jan 27Feb 5

Freeze probabilities 1991–2020 at Athens, 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 35611 →Compare Athens with another place →

Weather by month in Athens

July is the warmest month at Athens, AL, averaging 90°F by day and 72°F at night; January is the coldest at 51°F and 34°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 87% of years and April still brings one in 24% of years.

Warmth for growing adds up to 5,436 growing degree days a year (base 50°F), fewer than at 57% of the 115 Alabama stations. 40% of them (2,148) have built up by the end of June, and July adds the most, 961. Precipitation totals 59.1 inches a year, most in December (6.3") and least in September (3.8"); May to September bring 38% of it.

Monthly normals 1991–2020 at Athens, AL
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan51345.5100%1846
Feb56375.499%1464
Mar65445.687%7193
Apr73515.424%1379
May80604.90%0633
Jun87684.80%0832
Jul90724.90%0961
Aug90713.90%0941
Sep85653.80%0741
Oct75534.09%1430
Nov63424.688%8152
Dec54376.399%1564

Monthly normals 1991–2020 at Athens, AL (689 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, Belle Mina 2 N, AL, 11 miles southeast of Athens, has a last frost 11 days later (March 31), a first frost 11 days earlier (November 1), a season 24 days shorter.

Frost dates for 35749 (Harvest) →

When it snows in Athens, Alabama

Measurable snow is rare here: only 10 of 23 winters from 1991 to 2020 recorded 0.1 inch or more at Athens, AL, 4.4 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 35611

What to do and when, from the 50% frost dates for Athens, Alabama
WhenWhat to do
January 9 – January 23Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 23 – February 6Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 20 – March 6Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 20 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 20Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 29Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 12 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 35611 is 4 miles from Athens, AL, which stands at 689 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 35611 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