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USDA Hardiness Zone 8a

Frost Dates for 30622 — Bogart, Georgia

NOAA 1991–2020 normals from U Of Ga Plt Sci, GA (840 ft), 4 miles south.

Updated

In Bogart, the last spring frost (32°F) is around March 27 in half of years and has passed by April 12 in nine years out of ten. The first fall frost comes around November 8, as early as October 26 one year in ten, leaving a typical freeze-free season of 228 days (NOAA, U Of Ga Plt Sci, GA).

Last spring frost
March 27

50% probability

First fall frost
November 8

50% probability

Growing season
228 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
0%

0 of 20 observed

Snow per year
0"

NOAA normal

Frost risk by date in Bogart

Half of springs at U Of Ga Plt Sci, GA see their last 32°F night by March 27; only one in ten is past it by March 5, and one in ten still has one after April 12. Planting tender crops after April 3 leaves a 30% risk of a frost on them, after April 7 20%, and after April 12 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 70% of the 127 Georgia 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 26 one year in ten, and holds off past November 29 one year in ten. A hard freeze of 28°F follows 14 days later, around November 22; in spring the one-in-ten date for 28°F is March 31, 12 days before the 32°F one. The freeze-free season lasts 228 days in a typical year, shorter than at 61% of the 127 Georgia stations; it reaches 256 days one year in ten and falls short of 205 one year in ten. On average 60 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 11 days longer, to about April 7, and return around October 29. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 70%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 23Mar 29Apr 1Apr 4Apr 7Apr 11Apr 14Apr 17Apr 22
32°FMar 5Mar 14Mar 18Mar 23Mar 27Mar 31Apr 3Apr 7Apr 12
28°FFeb 17Feb 25Mar 2Mar 7Mar 12Mar 16Mar 19Mar 25Mar 31
24°FJan 25Feb 3Feb 11Feb 18Feb 25Mar 1Mar 6Mar 14Mar 19
20°F94% of yrsJan 7Jan 17Jan 25Jan 31Feb 4Feb 10Feb 19Feb 27Mar 6
16°F70% of yrsDec 29Jan 6Jan 12Jan 19Jan 25Jan 31Feb 3Feb 11Feb 24
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 18Oct 22Oct 24Oct 27Oct 29Nov 1Nov 3Nov 6Nov 12
32°FOct 26Oct 31Nov 1Nov 5Nov 8Nov 11Nov 15Nov 21Nov 29
28°FNov 4Nov 9Nov 13Nov 17Nov 22Nov 27Dec 1Dec 7Dec 16
24°FNov 14Nov 23Nov 29Dec 4Dec 8Dec 14Dec 22Dec 29Jan 8
20°F94% of yrsNov 30Dec 8Dec 17Dec 24Dec 29Jan 3Jan 8Jan 14Jan 25
16°F70% of yrsDec 12Dec 23Dec 29Jan 3Jan 8Jan 12Jan 17Jan 25Feb 3

Freeze probabilities 1991–2020 at U Of Ga Plt Sci, GA, 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 30622 →Compare Bogart with another place →

Weather by month in Bogart

July is the warmest month at U Of Ga Plt Sci, GA, averaging 91°F by day and 69°F at night; January is the coldest at 53°F and 32°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 37% of years.

Warmth for growing adds up to 4,994 growing degree days a year (base 50°F), fewer than at 70% of the 127 Georgia stations. 39% of them (1,955) have built up by the end of June, and July adds the most, 917. Precipitation totals 51.3 inches a year, most in June (5.2") and least in May (3.3"); May to September bring 42% of it.

Monthly normals 1991–2020 at U Of Ga Plt Sci, GA
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan53324.5100%1733
Feb57354.799%1345
Mar65414.992%7162
Apr73483.437%1326
May81573.30%0594
Jun88655.20%0795
Jul91694.30%0917
Aug89684.70%0874
Sep84624.20%0679
Oct74503.322%1387
Nov64404.189%7132
Dec56344.799%1650

Monthly normals 1991–2020 at U Of Ga Plt Sci, GA (840 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, Athens Ben Epps Airport, GA, 11 miles east of Bogart, has a last frost 4 days earlier (March 23), a first frost 2 days later (November 10), a season 4 days longer.

Frost dates for 30606 (Athens) →

When it snows in Bogart, Georgia

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at U Of Ga Plt Sci, GA, 4 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 30622

What to do and when, from the 50% frost dates for Bogart, Georgia
WhenWhat to do
January 16 – January 30Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 30 – February 13Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 27 – March 13Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 27 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 30622 is 4 miles from U Of Ga Plt Sci, GA, which stands at 840 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 30622 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 Georgia →

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 Georgia