Skip to content

USDA Hardiness Zone 9a

Frost Dates for 39837 — Colquitt, Georgia

NOAA 1991–2020 normals from Newton 11 SW, GA (156 ft), 14 miles east.

Updated

In Colquitt, the last spring frost (32°F) is around March 7 in half of years and has passed by March 28 in nine years out of ten. The first fall frost comes around November 19, as early as November 3 one year in ten, leaving a typical freeze-free season of 259 days (NOAA, Newton 11 SW, GA).

Last spring frost
March 7

50% probability

First fall frost
November 19

50% probability

Growing season
259 days

freeze-free, 50%

Hardiness zone
9a

20 to 25°F (-6.7 to -3.9°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
0%

0 of 19 observed

Snow per year
—

NOAA normal

Frost risk by date in Colquitt

Half of springs at Newton 11 SW, GA see their last 32°F night by March 7; only one in ten is past it by February 12, and one in ten still has one after March 28. Planting tender crops after March 15 leaves a 30% risk of a frost on them, after March 20 20%, and after March 28 10%. The 21 days between the even-odds date and the one-in-ten date is wider than at 83% of the 127 Georgia stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by November 19 in half of years, as early as November 3 one year in ten, and holds off past December 15 one year in ten. A hard freeze of 28°F follows 17 days later, around December 6; in spring the one-in-ten date for 28°F is March 14, 14 days before the 32°F one. The freeze-free season lasts 259 days in a typical year, longer than at 85% of the 127 Georgia stations; it reaches 291 days one year in ten and falls short of 234 one year in ten. On average 28 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 14 days longer, to about March 21, and return around November 7. Nights of 24°F, cold enough to damage hardier plants, come in 87% of winters and 16°F in 16%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FFeb 28Mar 7Mar 12Mar 17Mar 21Mar 25Mar 30Apr 3Apr 9
32°FFeb 12Feb 22Feb 27Mar 3Mar 7Mar 10Mar 15Mar 20Mar 28
28°F99% of yrsJan 25Feb 3Feb 9Feb 15Feb 20Feb 26Mar 1Mar 8Mar 14
24°F87% of yrsJan 5Jan 17Jan 24Jan 30Feb 4Feb 9Feb 16Feb 23Mar 2
20°F51% of yrsDec 30Jan 5Jan 12Jan 19Jan 25Jan 30Feb 3Feb 9Feb 23
16°F16% of yrstoo rare for a date
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 25Oct 30Nov 2Nov 5Nov 7Nov 11Nov 14Nov 18Nov 24
32°FNov 3Nov 8Nov 13Nov 16Nov 19Nov 24Nov 28Dec 4Dec 15
28°F99% of yrsNov 13Nov 20Nov 25Dec 1Dec 6Dec 13Dec 25Jan 2Jan 10
24°F87% of yrsNov 28Dec 7Dec 16Dec 26Jan 1Jan 5Jan 10Jan 18Feb 1
20°F51% of yrsDec 12Dec 27Jan 2Jan 7Jan 11Jan 16Jan 24Feb 1Feb 10
16°F16% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Newton 11 SW, 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 39837 →Compare Colquitt with another place →

Weather by month in Colquitt

July is the warmest month at Newton 11 SW, GA, averaging 91°F by day and 71°F at night; January is the coldest at 61°F and 39°F. A freezing night is all but certain in every month from January to February (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 62% of years.

Warmth for growing adds up to 6,394 growing degree days a year (base 50°F), more than at 86% of the 127 Georgia stations. 42% of them (2,695) have built up by the end of June, and July adds the most, 964. Precipitation totals 49.7 inches a year, most in August (5.4") and least in May (2.4"); May to September bring 43% of it.

Monthly normals 1991–2020 at Newton 11 SW, GA
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan61393.897%11125
Feb65424.791%6158
Mar72485.162%2325
Apr78544.36%<1482
May85622.40%0735
Jun89695.30%0871
Jul91714.80%0964
Aug90715.40%0950
Sep87673.70%0802
Oct80562.45%<1557
Nov70463.471%3263
Dec64424.490%8162

Monthly normals 1991–2020 at Newton 11 SW, GA (156 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, Donalsonville, GA, 16 miles southwest of Colquitt, has a last frost 1 day earlier (March 6), a first frost 4 days later (November 23), a season 5 days longer.

Frost dates for 39845 (Donalsonville) →

When it snows in Colquitt, Georgia

Measurable snow is rare here: only 0 of 19 winters from 1991 to 2020 recorded 0.1 inch or more at Bainbridge International Paper, GA, 22.8 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 39837

What to do and when, from the 50% frost dates for Colquitt, Georgia
WhenWhat to do
December 27 – January 10Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 10 – January 24Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 7 – February 21Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 7 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 27Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by November 5Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 19 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 39837 is 14 miles from Newton 11 SW, GA, which stands at 156 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 39837 in zone 9a, the band where the coldest night of the year averaged 20 to 25°F (-6.7 to -3.9°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.

Other zone 9a places in Georgia