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Climate in Atlanta · NOAA 1991–2020 normals

Atlanta’s winters are milder and less snowy than most of the U.S.

A typical July afternoon reaches 93°, a January night drops to 37°, and snow is almost unheard of.

Milder January nights than 85% of U.S. towns#126Mildest winters  of 160 in LA
Wetter than 97% of U.S. towns#122 wettest of 160 in LA
All LA rankings →

A year in Atlanta at a glance

Each month’s typical high and low, and what it brings.

Jan59°37°
Feb63°41°
Mar70°47° Last frost ~Mar 13
Apr77°54° 1 day 90°+Wettest
May84°62° 5 days 90°+
Jun90°69° 16 days 90°+
Jul93°72° 25 days 90°+
Aug93°71° 25 days 90°+
Sep88°65° 15 days 90°+
Oct79°54° 3 days 90°+
Nov now68°44° First frost ~Nov 10
Dec60°39°

What stands out about Atlanta’s climate

Compared with towns across the U.S., with Atlanta’s place in Louisiana beside it.

A normal year

What a year in Atlanta feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
61° / 39°
Snow is rare
Spring
77° / 54°
Last frost around Mar 13
Summer
92° / 71°
89 days reach 90°
Fall
79° / 54°
First frost around Nov 10
Best months to be outsideFebMarAprOctNovHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 242 frost-free days a year

In half of years the last 32° night comes by March 13 and the first by November 10. Frost and day counts come from NOAA’s station at Winnfield 3 N, LA, 12 miles from the town’s center, at about the same height.

45
nights at or below 32° in a normal year
152nd fewest of 160 in Louisiana
Fewer freezing nights than 81% of U.S. towns
0
nights at or below 0°
None in a normal year
89
days that reach 90°
66th most of 160 in Louisiana
More 90° days than 89% of U.S. towns
6
days that reach 100°
32nd most of 160 in Louisiana
More 100° days than 87% of U.S. towns
8bUSDA zone
Plant hardiness zone 8b

The 2023 USDA map puts Atlanta’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 20°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

14
JFMAMJJASOND

90° days by month

Average days at 90° or more

25
JFMAMJJASOND
Rain & snow

About 58 inches of rain a year

April is the wettest month and August the driest. Rain falls on about 98 days a year. Snow is rare: about 0.3" in a normal year at Winnfield 3 N, LA, so most winters see none.

58"
Rain + melted snow a year
122nd wettest of 160 in Louisiana
Wetter than 97% of U.S. towns
0.3"
Snow in a normal winter
Less snow than 82% of U.S. towns

Rain + melted snow by month

Inches of water

5.8"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Atlanta

49% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55° run from December through February.

2,238 heating degree daysLess heating than 86% of U.S. towns
2,376 cooling degree daysMore cooling than 87% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Winnfield 3 N, LA.

Living here

Living with Atlanta’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

242 frost-free days in zone 8b. The last frost comes by Mar 13 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 10.

Get outside

Months with highs of 62–84° and lows of 40° or more: February, March, April, October and November.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Atlanta from natural hazards, river flooding is the largest share (57%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door & far away

Atlanta and similar climates

TownRatings has no climate map of the towns around Atlanta yet.

Climates most like Atlanta’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Atlanta, LA37°93°58"0.3"
Richland, MS36°92°58"1.0"
Andalusia, AL37°91°59"0.3"
Magalia, CA38°92°61"0.1"
Marianna, FL40°92°55"0.0"

Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.

Then and now

Warmer than it used to be

The last 30 years in Atlanta averaged 0.7° warmer than the 1900s. The biggest change is in March (+1.1°).

+0.7°1991–2020 vs. 1901–2000

A smaller shift than in 93% of U.S. towns.

Winter+0.9°now 50°, was 49°
Spring+0.7°now 66°, was 65°
Summer+0.5°now 81°, was 81°
Fall+0.7°now 67°, was 66°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Atlanta compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Atlanta’s place among Louisiana’s.

Summer heat93° July high
Hotter July afternoons than 90% of U.S. towns27th hottest of 160 in Louisiana
Winter cold37° January low
Milder January nights than 85% of U.S. towns126th mildest of 160 in Louisiana
Precipitation58" a year
Wetter than 97% of U.S. towns122nd wettest of 160 in Louisiana
Snow0.3" a winter
Less snow than 82% of U.S. townsNot ranked: under an inch a year
Hot days89 days at 90°+
More 90° days than 89% of U.S. towns66th most of 160 in Louisiana
Freezing nights45 a year
Fewer freezing nights than 81% of U.S. towns152nd fewest of 160 in Louisiana
Growing season242 frost-free days
A longer frost-free season than 88% of U.S. towns132nd longest of 143 in Louisiana
Month by month

Atlanta weather by month

Highs, lows and precipitation from NOAA’s grid at Atlanta’s center; snow, wet days and snow on the ground from Winnfield 3 N, LA. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January59°37°5.7"0.2"10042° – 55°
February63°41°5.3"0.0"9044° – 61°
March70°47°5.3"0.0"9052° – 67°
April77°54°5.8"0.0"7060° – 70°
May84°62°4.3"0.0"8070° – 77°
June90°69°4.5"0.0"9077° – 84°
July93°72°4.4"0.0"8079° – 87°
August93°71°3.8"0.0"8077° – 88°
September88°65°3.8"0.0"6074° – 81°
October79°54°4.8"0.0"7062° – 73°
November68°44°4.9"0.0"8051° – 61°
December60°39°5.8"0.1"10040° – 57°
Year77°55°58.4"0.3"980
Year to year

How much a month can swing

A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 44° to 61°. May is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Atlanta’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Atlanta’s center.
  • Snow: Winnfield 3 N, LA.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Winnfield 3 N, LA, 12 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Atlanta’s climate

What is the weather like in Atlanta?

A typical July afternoon reaches 93°, a January night drops to 37°, and snow is almost unheard of. Milder January nights than 85% of U.S. towns; hotter July afternoons than 90% of U.S. towns.

How cold does it get in Atlanta in winter?

January nights average 37°. About 45 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 42°.

How much snow does Atlanta get?

About 0.3 inches in a normal winter at Winnfield 3 N, LA, so most winters see none.

How hot does it get in Atlanta?

July, with a typical high of 93° and a low of 72°. About 89 days a year reach 90° and 6 reach 100° (Winnfield 3 N, LA).

When is the first and last frost in Atlanta?

In half of years the last spring frost (32°) comes by March 13 and the first fall frost by November 10, about 242 frost-free days, at Winnfield 3 N, LA.

What growing zone is Atlanta in?

Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 20°.

What is the best time of year to visit Atlanta?

By one simple rule (highs of 62–84° and lows of 40° or more), February, March, April, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Atlanta getting warmer?

Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 93% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Atlanta.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.