Clayton, Georgia climate: Normal weather by month, frost dates and records
Clayton's normal year runs from 30°F January nights to 85°F July afternoons, with 71.7 inches of precipitation and 2 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.3°C, January lows of −1°C, July highs of 30°C, 1,822 mm of precipitation a year.
- NOAA stationClayton (1 mi SSW)
- Station IDUSC00091982
- Location34.89°N 83.40°W
- Elevation1,965 ft (599 m)
- Population2,090
On October 23, the normal high in Clayton is 69°F and the normal low 44°F, and the chance of measurable rain or snow is 28%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Clayton.
- Jan 50° 30°
- Feb 54° 32°
- Mar 61° 37°
- Apr 70° 44°
- May 76° 53°
- Jun 83° 62°
- Jul 85° 65°
- Aug 84° 64°
- Sep 79° 59°
- Oct 71° 47°
- Nov 61° 37°
- Dec 53° 32°
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 Clayton each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 30°F. The most precipitation falls in December (7.04 in), the least in May (5.08 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 50°F | 30°F | 40.0°F | 6.76 | 0.9 | 11 | <1 | 21 | 10 h |
| February | 54°F | 32°F | 42.7°F | 5.76 | 0.6 | 10 | <1 | 18 | 10 h 50 min |
| March | 61°F | 37°F | 49.0°F | 6.28 | 0.1 | 12 | <1 | 11 | 11 h 50 min |
| April | 70°F | 44°F | 57.0°F | 5.71 | 0.0 | 10 | <1 | 3 | 13 h |
| May | 76°F | 53°F | 64.8°F | 5.08 | 0.0 | 11 | <1 | <1 | 14 h |
| June | 83°F | 62°F | 72.0°F | 6.27 | 0.0 | 12 | 2 | <1 | 14 h 30 min |
| July | 85°F | 65°F | 75.1°F | 5.34 | 0.0 | 14 | 6 | <1 | 14 h 20 min |
| August | 84°F | 64°F | 74.3°F | 6.43 | 0.0 | 13 | 4 | <1 | 13 h 30 min |
| September | 79°F | 59°F | 69.0°F | 5.74 | 0.0 | 10 | 1 | <1 | 12 h 30 min |
| October | 71°F | 47°F | 58.8°F | 5.35 | 0.0 | 8 | <1 | 2 | 11 h 20 min |
| November | 61°F | 37°F | 48.8°F | 5.97 | 0.0 | 9 | <1 | 13 | 10 h 20 min |
| December | 53°F | 32°F | 42.4°F | 7.04 | 0.8 | 11 | <1 | 20 | 9 h 50 min |
| Year (annual) | 69°F | 47°F | 57.8°F | 71.73 | 2.4 | 130 | 12 | 88 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 10°C | −1°C | 4.4°C | 172 mm | 2 cm |
| February | 12°C | 0°C | 5.9°C | 146 mm | 2 cm |
| March | 16°C | 3°C | 9.4°C | 160 mm | 0 cm |
| April | 21°C | 7°C | 13.9°C | 145 mm | 0 cm |
| May | 25°C | 12°C | 18.2°C | 129 mm | 0 cm |
| June | 28°C | 16°C | 22.2°C | 159 mm | 0 cm |
| July | 30°C | 18°C | 23.9°C | 136 mm | 0 cm |
| August | 29°C | 18°C | 23.5°C | 163 mm | 0 cm |
| September | 26°C | 15°C | 20.6°C | 146 mm | 0 cm |
| October | 21°C | 8°C | 14.9°C | 136 mm | 0 cm |
| November | 16°C | 3°C | 9.3°C | 152 mm | 0 cm |
| December | 12°C | 0°C | 5.8°C | 179 mm | 2 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00091982; 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 Clayton?
Normal highs sit between 65°F and 85°F in April, May, June, August, September and October. Of those, October has the fewest days with rain (8).
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 USC00091982.
When is the last frost in Clayton?
In Clayton, the last spring frost (32°F) comes after April 10 in half of years and after May 1 in one year in ten; the first autumn frost comes before October 29 in half of years and before October 15 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 101 year in 10 after May 1; 9 in 10 after March 24
- First autumn frost, half of years before
- October 291 year in 10 before October 15; 9 in 10 before November 12
NOAA puts the median frost-free season at 203 days, and the season without a hard freeze (28°F) at 228 days.
A hard freeze (28°F) comes after March 28 in half of springs and before November 8 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Clayton in zone 7b in ZIP code 30525, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Clayton's NOAA station is in zone 7b: the coldest night of a typical year reaches 9°F (18 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 USC00091982; 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 Clayton?
In a normal year in Clayton, 12 days a year reach 90°F, 88 nights fall to 32°F or colder and 130 days bring measurable precipitation.
- Days at 90°F or more
- 12a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 88a normal year
- Days that stay below freezing
- 2high of 32°F or less
- Days with 0.01 inch of precipitation
- 130a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1893) is 102°F, on July 12, 1930; the lowest is −11°F, on January 21, 1985.
The wettest calendar year on that record is 2018, with 104.37 in; the snowiest season is 1935–36, with 30.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00091982; records: ACIS (NOAA Regional Climate Centers), station USC00091982. Records use complete months only; a month missing more than three days is left out.
How sunny is Clayton?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Clayton, 4.5 kWh per square metre a day. June is the sunniest month (80%) and February the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 2.7 |
| February | 69% | 3.3 |
| March | 72% | 4.3 |
| April | 77% | 5.5 |
| May | 78% | 6.1 |
| June | 80% | 6.3 |
| July | 79% | 6.1 |
| August | 80% | 5.6 |
| September | 79% | 4.8 |
| October | 79% | 4.0 |
| November | 78% | 3.0 |
| December | 70% | 2.3 |
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 Clayton need?
A normal year in Clayton brings 3,669 heating degree days, 32% fewer than the median U.S. place (5,373), and 1,077 cooling degree days, 19% 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 3,973 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 777 | 0 |
| February | 623 | 0 |
| March | 497 | 1 |
| April | 252 | 13 |
| May | 81 | 74 |
| June | 7 | 217 |
| July | 0 | 315 |
| August | 0 | 287 |
| September | 28 | 147 |
| October | 214 | 21 |
| November | 488 | 1 |
| December | 702 | 0 |
| Year (annual) | 3,669 | 1,077 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00091982. 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 Clayton been warmer than normal lately?
2025 averaged 58.8°F, 1.0°F above the 1991-2020 normal of 57.8°F. 3 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 58.0°F | +0.2°F | 71.38 | 4.0 |
| 2024 | 59.5°F | +1.7°F | 78.40 | 0.0 |
| 2025 | 58.8°F | +1.0°F | 62.56 | 2.5 |
Over 75 complete years from 1894 to 2025, the station's annual mean temperature rose at a fitted 1.6°F per century (+0.09°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00091982; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Clayton's climate compare?
Clayton is warmer than 4 of the other 100 places with their own NOAA record in Georgia, and wetter than 83. Across the 7,247 U.S. stations with normals, its annual mean of 57.8°F is warmer than 69%.
In the Köppen classification computed from these normals, Clayton 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.
Questions about Clayton's climate
What is the coldest month in Clayton?
January, with a normal high of 50°F and a normal low of 30°F. The warmest is July (85°F by day, 65°F at night).
Does it snow in Clayton?
Yes: 2 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (0.9 inches).
What is the rainiest month in Clayton?
December, with 7.04 in of precipitation in a normal year; the driest is May with 5.08 in.
What plant hardiness zone is Clayton in?
The USDA's 2023 map puts Clayton in zone 7b in ZIP code 30525, the nearest ZIP area. By the same method at Clayton's NOAA station, the coldest night of a typical year reaches 9°F (18 years, 1991-2020): zone 7b.
How late can frost come in Clayton?
In half of years the last 32°F night comes after April 10; in one year in ten it comes after May 1. Waiting until May 1 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Georgia climateThe statewide normals and every place in the state
- Mountain City, GA1 miles from this station, 53.3°F a year
- Germany Valley, GA4 miles from this station, 54.3°F a year
- Long Creek, SC12 miles from this station, 58.0°F a year
- Coweeta Experiment Station, NC12 miles from this station, 56.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made