Photo: Ebyabe · CC BY-SA 3.0Darien’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 92°, a January night drops to 43°, and snow is almost unheard of.
A year in Darien at a glance
Each month’s typical high and low, and what it brings.
What stands out about Darien’s climate
Compared with towns across the U.S., with Darien’s place in Georgia beside it.
What a year in Darien feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 298 frost-free days a year
In half of years the last 32° night comes by February 20 and the first by December 19. Frost and day counts come from NOAA’s station at Sapelo Is, GA, 9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Darien’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 22°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 49 inches of rain a year
August is the wettest month and November the driest. Rain falls on about 101 days a year. Snow is rare: about 0.0" in a normal year at Sapelo Is, GA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Darien
35% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55°: December and January.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Sapelo Is, GA.
Living with Darien’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
298 frost-free days in zone 9a. The last frost comes by Feb 20 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Dec 19.
Months with highs of 62–84° and lows of 40° or more: February, March, April, May, October, November and December. 13 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Darien from natural hazards, hurricanes are the largest share (75%); heat waves, cold waves, winter storms and ice storms together are 2%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Darien and similar climates
TownRatings has no climate map of the towns around Darien yet.
Climates most like Darien’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.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Darien, GA | 43° | 92° | 49" | 0.0" |
| Angleton, TX | 45° | 92° | 50" | 0.0" |
| Wildwood, FL | 46° | 92° | 50" | 0.0" |
| Moncks Corner, SC | 37° | 93° | 50" | 0.0" |
| Phenix City, AL | 36° | 92° | 51" | 0.0" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Darien averaged 1.1° warmer than the 1900s. The biggest change is in December (+1.8°).
A smaller shift than in 73% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Darien compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Darien’s place among Georgia’s.
Darien weather by month
Highs, lows and precipitation from NOAA’s grid at Darien’s center; snow, wet days and snow on the ground from Sapelo Is, GA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 62° | 43° | 3.5" | 0.0" | 9 | 0 | 47° – 59° |
| February | 65° | 46° | 3.0" | 0.0" | 8 | 0 | 47° – 63° |
| March | 71° | 51° | 3.5" | 0.0" | 7 | 0 | 55° – 68° |
| April | 77° | 58° | 3.2" | 0.0" | 7 | 0 | 62° – 72° |
| May | 84° | 66° | 2.9" | 0.0" | 7 | 0 | 71° – 79° |
| June | 89° | 72° | 6.0" | 0.0" | 10 | 0 | 77° – 85° |
| July | 92° | 75° | 5.3" | 0.0" | 10 | 0 | 82° – 86° |
| August | 90° | 75° | 6.5" | 0.0" | 12 | 0 | 80° – 85° |
| September | 86° | 71° | 5.4" | 0.0" | 11 | 0 | 76° – 83° |
| October | 79° | 62° | 4.1" | 0.0" | 7 | 0 | 67° – 76° |
| November | 71° | 52° | 2.1" | 0.0" | 6 | 0 | 56° – 67° |
| December | 64° | 46° | 2.9" | 0.0" | 8 | 0 | 45° – 65° |
| Year | 77° | 60° | 48.5" | 0.0" | 101 | 0 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 45° to 65°. July is the most reliable, staying within 5°.
Where Darien’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 Darien’s center.
- Snow: Sapelo Is, GA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Sapelo Is, GA, 9 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 Darien’s climate
What is the weather like in Darien?
A typical July afternoon reaches 92°, a January night drops to 43°, and snow is almost unheard of. Milder January nights than 92% of U.S. towns; hotter July afternoons than 86% of U.S. towns.
How cold does it get in Darien in winter?
January nights average 43°. About 12 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 47°.
How much snow does Darien get?
About 0.0 inches in a normal winter at Sapelo Is, GA, so most winters see none.
How hot does it get in Darien?
July, with a typical high of 92° and a low of 75°. About 62 days a year reach 90° (Sapelo Is, GA).
When is the first and last frost in Darien?
In half of years the last spring frost (32°) comes by February 20 and the first fall frost by December 19, about 298 frost-free days, at Sapelo Is, GA.
What growing zone is Darien in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 22°.
What is the best time of year to visit Darien?
By one simple rule (highs of 62–84° and lows of 40° or more), February, March, April, May, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Darien getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 73% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Darien.
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.