Ashburn, Georgia climate: Normal weather by month, frost dates and records
Ashburn's normal year runs from 36°F January nights to 91°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.7°C, January lows of 2°C, July highs of 33°C.
- NOAA stationAshburn (3 mi ENE)
- Station IDUSC00090406
- Location31.70°N 83.62°W
- Elevation435 ft (133 m)
- From the center2 miles
- Population4,239
On October 23, the normal high in Ashburn is 76°F and the normal low 51°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Ashburn.
- Jan 59° 36°
- Feb 64° 40°
- Mar 71° 46°
- Apr 78° 52°
- May 85° 61°
- Jun 90° 69°
- Jul 91° 71°
- Aug 91° 70°
- Sep 87° 65°
- Oct 79° 54°
- Nov 69° 45°
- Dec 63° 39°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Ashburn each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 36°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 59°F | 36°F | 47.7°F | – | <1 | 13 | 10 h 20 min |
| February | 64°F | 40°F | 51.8°F | – | <1 | 6 | 11 h |
| March | 71°F | 46°F | 58.4°F | – | <1 | 2 | 12 h |
| April | 78°F | 52°F | 65.0°F | – | <1 | <1 | 13 h |
| May | 85°F | 61°F | 73.3°F | – | 7 | <1 | 13 h 40 min |
| June | 90°F | 69°F | 79.2°F | – | 15 | <1 | 14 h 10 min |
| July | 91°F | 71°F | 80.8°F | – | 23 | <1 | 14 h |
| August | 91°F | 70°F | 80.4°F | – | 19 | <1 | 13 h 20 min |
| September | 87°F | 65°F | 76.0°F | – | 9 | <1 | 12 h 20 min |
| October | 79°F | 54°F | 66.6°F | – | <1 | <1 | 11 h 30 min |
| November | 69°F | 45°F | 57.0°F | – | <1 | 3 | 10 h 30 min |
| December | 63°F | 39°F | 50.9°F | – | <1 | 11 | 10 h 10 min |
| Year (annual) | 77°F | 54°F | 65.6°F | – | 74 | 36 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 15°C | 2°C | 8.7°C |
| February | 18°C | 4°C | 11.0°C |
| March | 22°C | 8°C | 14.7°C |
| April | 25°C | 11°C | 18.3°C |
| May | 30°C | 16°C | 22.9°C |
| June | 32°C | 20°C | 26.2°C |
| July | 33°C | 22°C | 27.1°C |
| August | 33°C | 21°C | 26.9°C |
| September | 30°C | 19°C | 24.4°C |
| October | 26°C | 12°C | 19.2°C |
| November | 21°C | 7°C | 13.9°C |
| December | 17°C | 4°C | 10.5°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Tifton (20 miles away), gets 0 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00090406; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Ashburn?
Normal highs sit between 65°F and 85°F in March, April, October and November.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00090406.
When is the last frost in Ashburn?
In Ashburn, the last spring frost (32°F) comes after March 11 in half of years and after March 29 in one year in ten; the first autumn frost comes before November 20 in half of years and before November 1 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- March 111 year in 10 after March 29; 9 in 10 after February 19
- First autumn frost, half of years before
- November 201 year in 10 before November 1; 9 in 10 before December 12
NOAA puts the median frost-free season at 256 days, and the season without a hard freeze (28°F) at 287 days.
A hard freeze (28°F) comes after February 26 in half of springs and before December 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Ashburn in zone 9a in ZIP code 31714, the nearest ZIP area.
Frost dates for every NOAA station in Georgia · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00090406; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Ashburn?
In a normal year in Ashburn, 74 days a year reach 90°F (1 of them 100°F or more) and 36 nights fall to 32°F or colder.
- Days at 90°F or more
- 74a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 36a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00090406.
How sunny is Ashburn?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Ashburn, 4.8 kWh per square metre a day. May is the sunniest month (84%) and February the cloudiest (73%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 3.1 |
| February | 73% | 3.6 |
| March | 77% | 4.8 |
| April | 81% | 5.9 |
| May | 84% | 6.5 |
| June | 80% | 6.3 |
| July | 83% | 6.3 |
| August | 81% | 5.7 |
| September | 81% | 5.0 |
| October | 81% | 4.2 |
| November | 81% | 3.4 |
| December | 74% | 2.7 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Ashburn need?
A normal year in Ashburn brings 2,002 heating degree days, 63% fewer than the median U.S. place (5,373), and 2,245 cooling degree days, 2.5 times the median (908). Three months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,071 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 538 | 1 |
| February | 374 | 3 |
| March | 226 | 23 |
| April | 81 | 81 |
| May | 10 | 266 |
| June | 0 | 425 |
| July | 0 | 490 |
| August | 0 | 477 |
| September | 2 | 333 |
| October | 71 | 119 |
| November | 261 | 22 |
| December | 440 | 5 |
| Year (annual) | 2,002 | 2,245 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00090406. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Ashburn's climate compare?
Ashburn is warmer than 70 of the other 100 places with their own NOAA record in Georgia. Across the 7,247 U.S. stations with normals, its annual mean of 65.6°F is warmer than 89%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Ashburn share this climate record?
6 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Sylvester, GA5,413 people · 17 mi SW
- Sycamore, GA743 people · 2 mi S
- Poulan, GA724 people · 16 mi SW
- Arabi, GA455 people · 10 mi NW
- Sumner, GA433 people · 15 mi SW
- Rebecca, GA206 people · 11 mi NE
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Ashburn's climate
What is the coldest month in Ashburn?
January, with a normal high of 59°F and a normal low of 36°F. The warmest is July (91°F by day, 71°F at night).
Does it snow in Ashburn?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Ashburn's NOAA station; the nearest record that keeps one, Tifton (20 miles away), records 0 inches of snow in a normal year.
What plant hardiness zone is Ashburn in?
The USDA's 2023 map puts Ashburn in zone 9a in ZIP code 31714, the nearest ZIP area.
How late can frost come in Ashburn?
In half of years the last 32°F night comes after March 11; in one year in ten it comes after March 29. Waiting until March 29 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Georgia climateThe statewide normals and every place in the state
- Tifton, GA19 miles from this station, 64.9°F a year
- Crisp County Power Dam, GA21 miles from this station, 65.8°F a year
- Cordele, GA22 miles from this station, 65.8°F a year
- Fitzgerald, GA22 miles from this station, 66.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made