Newnan, Georgia climate: Normal weather by month, frost dates and records
Newnan's normal year runs from 31°F January nights to 90°F July afternoons, with 52.5 inches of precipitation and 2 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.3°C, January lows of −1°C, July highs of 32°C, 1,334 mm of precipitation a year.
- NOAA stationNewnan (7 mi WNW)
- Station IDUSC00096335
- Location33.40°N 84.92°W
- Elevation795 ft (242 m)
- Population45,548
On October 23, the normal high in Newnan is 72°F and the normal low 46°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Newnan.
- Jan 54° 31°
- Feb 60° 34°
- Mar 67° 39°
- Apr 75° 47°
- May 81° 56°
- Jun 87° 65°
- Jul 90° 68°
- Aug 89° 68°
- Sep 84° 62°
- Oct 75° 49°
- Nov 66° 39°
- Dec 57° 33°
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 Newnan each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 31°F. The most precipitation falls in March (5.37 in), the least in October (3.00 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 54°F | 31°F | 42.6°F | 4.92 | 0.8 | 11 | <1 | 17 | 10 h 10 min |
| February | 60°F | 34°F | 46.6°F | 5.05 | 0.2 | 11 | <1 | 12 | 11 h |
| March | 67°F | 39°F | 53.1°F | 5.37 | 0.3 | 10 | <1 | 7 | 12 h |
| April | 75°F | 47°F | 60.9°F | 4.15 | 0.0 | 9 | <1 | 1 | 13 h |
| May | 81°F | 56°F | 68.7°F | 3.69 | 0.0 | 10 | 2 | <1 | 13 h 50 min |
| June | 87°F | 65°F | 75.8°F | 3.90 | 0.0 | 11 | 9 | <1 | 14 h 20 min |
| July | 90°F | 68°F | 78.9°F | 4.71 | 0.0 | 11 | 15 | <1 | 14 h 10 min |
| August | 89°F | 68°F | 78.3°F | 4.63 | 0.0 | 10 | 12 | <1 | 13 h 30 min |
| September | 84°F | 62°F | 72.7°F | 3.87 | 0.0 | 7 | 5 | <1 | 12 h 30 min |
| October | 75°F | 49°F | 61.9°F | 3.00 | 0.0 | 6 | <1 | 1 | 11 h 20 min |
| November | 66°F | 39°F | 52.1°F | 4.09 | 0.0 | 8 | <1 | 7 | 10 h 30 min |
| December | 57°F | 33°F | 45.1°F | 5.14 | 0.4 | 11 | <1 | 16 | 10 h |
| Year (annual) | 74°F | 49°F | 61.4°F | 52.52 | 1.7 | 113 | 42 | 61 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 12°C | −1°C | 5.9°C | 125 mm | 2 cm |
| February | 15°C | 1°C | 8.1°C | 128 mm | 1 cm |
| March | 19°C | 4°C | 11.7°C | 136 mm | 1 cm |
| April | 24°C | 8°C | 16.1°C | 105 mm | 0 cm |
| May | 27°C | 13°C | 20.4°C | 94 mm | 0 cm |
| June | 31°C | 18°C | 24.3°C | 99 mm | 0 cm |
| July | 32°C | 20°C | 26.1°C | 120 mm | 0 cm |
| August | 32°C | 20°C | 25.7°C | 118 mm | 0 cm |
| September | 29°C | 16°C | 22.6°C | 98 mm | 0 cm |
| October | 24°C | 10°C | 16.6°C | 76 mm | 0 cm |
| November | 19°C | 4°C | 11.2°C | 104 mm | 0 cm |
| December | 14°C | 1°C | 7.3°C | 131 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00096335; 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 Newnan?
Normal highs sit between 65°F and 85°F in March, April, May, September, October and November. Of those, October has the fewest days with rain (6).
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 USC00096335.
When is the last frost in Newnan?
In Newnan, the last spring frost (32°F) comes after April 3 in half of years and after April 18 in one year in ten; the first autumn frost comes before November 2 in half of years and before October 22 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
- April 31 year in 10 after April 18; 9 in 10 after March 16
- First autumn frost, half of years before
- November 21 year in 10 before October 22; 9 in 10 before November 18
NOAA puts the median frost-free season at 214 days, and the season without a hard freeze (28°F) at 239 days.
A hard freeze (28°F) comes after March 21 in half of springs and before November 15 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Newnan in zone 8a in ZIP code 30265. By the map's own method, the average of each year's coldest night over 1991-2020, Newnan's NOAA station is in zone 8a: the coldest night of a typical year reaches 13°F (19 complete years).
Frost dates for every NOAA station in Georgia · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00096335; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Newnan?
In a normal year in Newnan, 42 days a year reach 90°F (1 of them 100°F or more), 61 nights fall to 32°F or colder and 113 days bring measurable precipitation.
- Days at 90°F or more
- 42a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 61a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 113a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1891) is 108°F, on September 5, 1925; the lowest is −8°F, on January 21, 1985.
The wettest calendar year on that record is 2018, with 70.75 in; the snowiest season is 1982–83, with 7.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00096335; records: ACIS (NOAA Regional Climate Centers), station USC00096335. Records use complete months only; a month missing more than three days is left out.
How sunny is Newnan?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Newnan, 4.5 kWh per square metre a day. July is the sunniest month (80%) and February the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 2.8 |
| February | 69% | 3.3 |
| March | 73% | 4.4 |
| April | 78% | 5.6 |
| May | 80% | 6.2 |
| June | 79% | 6.2 |
| July | 80% | 6.0 |
| August | 80% | 5.5 |
| September | 79% | 4.8 |
| October | 78% | 4.0 |
| November | 78% | 3.1 |
| December | 70% | 2.4 |
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 Newnan need?
A normal year in Newnan brings 2,965 heating degree days, 45% fewer than the median U.S. place (5,373), and 1,681 cooling degree days, 85% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,984 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 695 | 0 |
| February | 518 | 1 |
| March | 378 | 7 |
| April | 162 | 41 |
| May | 40 | 155 |
| June | 1 | 327 |
| July | 0 | 432 |
| August | 0 | 412 |
| September | 13 | 245 |
| October | 149 | 53 |
| November | 392 | 6 |
| December | 618 | 1 |
| Year (annual) | 2,965 | 1,681 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00096335. 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.
Has Newnan been warmer than normal lately?
2022 averaged 60.5°F, 0.9°F below the 1991-2020 normal of 61.4°F. 0 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 61.0°F | −0.4°F | 60.81 | 0.0 |
| 2022 | 60.5°F | −0.9°F | 56.05 | 0.0 |
Source: observed years: ACIS, station USC00096335. A year counts only with all twelve months complete.
How does Newnan's climate compare?
Newnan is warmer than 26 of the other 100 places with their own NOAA record in Georgia, and wetter than 57. Across the 7,247 U.S. stations with normals, its annual mean of 61.4°F is warmer than 78%.
In the Köppen classification computed from these normals, Newnan is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Newnan share this climate record?
5 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.
- Chattahoochee Hills, GA3,451 people · 16 mi NE
- Grantville, GA3,281 people · 12 mi SE
- Whitesburg, GA630 people · 6 mi N
- East Newnan, GA486 people · 9 mi SE
- Moreland, GA389 people · 11 mi SE
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 Newnan's climate
What is the coldest month in Newnan?
January, with a normal high of 54°F and a normal low of 31°F. The warmest is July (90°F by day, 68°F at night).
Does it snow in Newnan?
Yes: 2 inches in a normal year, falling on 1 days with 0.1 inch or more, the most in January (0.8 inches).
What is the rainiest month in Newnan?
March, with 5.37 in of precipitation in a normal year; the driest is October with 3.00 in.
What plant hardiness zone is Newnan in?
The USDA's 2023 map puts Newnan in zone 8a in ZIP code 30265. By the same method at Newnan's NOAA station, the coldest night of a typical year reaches 13°F (19 years, 1991-2020): zone 8a.
How late can frost come in Newnan?
In half of years the last 32°F night comes after April 3; in one year in ten it comes after April 18. Waiting until April 18 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Newnan in OctoberThis month day by day, its records and recent years
- Georgia climateThe statewide normals and every place in the state
- Carrollton, GA17 miles from this station, 61.3°F a year
- Peachtree City, GA21 miles from this station, 63.2°F a year
- LaGrange, GA25 miles from this station, 62.9°F a year
- Rock Mills, AL27 miles from this station, 61.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made