Thomson, Georgia climate: Normal weather by month, frost dates and records
Thomson's normal year runs from 35°F January nights to 91°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.6°C, January lows of 1°C, July highs of 33°C.
- NOAA stationThomson (1.5 mi SE)
- Station IDUSC00098677
- Location33.45°N 82.48°W
- Elevation542 ft (165 m)
- Population6,792
On October 23, the normal high in Thomson is 74°F and the normal low 50°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Thomson.
- Jan 57° 35°
- Feb 59° 36°
- Mar 67° 43°
- Apr 76° 51°
- May 83° 59°
- Jun 89° 67°
- Jul 91° 70°
- Aug 90° 69°
- Sep 86° 64°
- Oct 77° 53°
- Nov 67° 42°
- Dec 59° 37°
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 Thomson each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 35°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 57°F | 35°F | 45.7°F | – | <1 | 12 | 10 h 10 min |
| February | 59°F | 36°F | 47.8°F | – | <1 | 4 | 11 h |
| March | 67°F | 43°F | 54.8°F | – | <1 | 3 | 12 h |
| April | 76°F | 51°F | 63.4°F | – | <1 | <1 | 13 h |
| May | 83°F | 59°F | 70.9°F | – | 5 | <1 | 13 h 50 min |
| June | 89°F | 67°F | 77.8°F | – | 14 | <1 | 14 h 20 min |
| July | 91°F | 70°F | 80.9°F | – | 22 | <1 | 14 h 10 min |
| August | 90°F | 69°F | 79.6°F | – | 19 | <1 | 13 h 30 min |
| September | 86°F | 64°F | 74.8°F | – | 16 | <1 | 12 h 30 min |
| October | 77°F | 53°F | 65.0°F | – | 3 | <1 | 11 h 20 min |
| November | 67°F | 42°F | 54.3°F | – | <1 | 3 | 10 h 30 min |
| December | 59°F | 37°F | 47.9°F | – | <1 | 8 | 10 h |
| Year (annual) | 75°F | 52°F | 63.6°F | – | 79 | 30 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 14°C | 1°C | 7.6°C |
| February | 15°C | 2°C | 8.8°C |
| March | 19°C | 6°C | 12.7°C |
| April | 24°C | 11°C | 17.4°C |
| May | 28°C | 15°C | 21.6°C |
| June | 32°C | 19°C | 25.4°C |
| July | 33°C | 21°C | 27.2°C |
| August | 32°C | 21°C | 26.4°C |
| September | 30°C | 18°C | 23.8°C |
| October | 25°C | 12°C | 18.3°C |
| November | 19°C | 5°C | 12.4°C |
| December | 15°C | 3°C | 8.8°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Washington (23 miles away), gets 1 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00098677; 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 Thomson?
Normal highs sit between 65°F and 85°F in March, April, May, 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 USC00098677.
When is the last frost in Thomson?
In Thomson, the last spring frost (32°F) comes after March 14 in half of years and after March 31 in one year in ten; the first autumn frost comes before November 17 in half of years and before November 3 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 141 year in 10 after March 31; 9 in 10 after February 21
- First autumn frost, half of years before
- November 171 year in 10 before November 3; 9 in 10 before December 8
NOAA puts the median frost-free season at 252 days, and the season without a hard freeze (28°F) at 284 days.
A hard freeze (28°F) comes after February 26 in half of springs and before December 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Thomson in zone 8b in ZIP code 30824, 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 USC00098677; 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 Thomson?
In a normal year in Thomson, 79 days a year reach 90°F and 30 nights fall to 32°F or colder.
- Days at 90°F or more
- 79a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 30a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00098677.
How sunny is Thomson?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Thomson, 4.6 kWh per square metre a day. June is the sunniest month (82%) and February the cloudiest (72%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 2.8 |
| February | 72% | 3.4 |
| March | 75% | 4.5 |
| April | 80% | 5.7 |
| May | 80% | 6.2 |
| June | 82% | 6.4 |
| July | 82% | 6.1 |
| August | 80% | 5.6 |
| September | 80% | 4.9 |
| October | 80% | 4.0 |
| November | 79% | 3.1 |
| December | 73% | 2.5 |
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 Thomson need?
A normal year in Thomson brings 2,461 heating degree days, 54% fewer than the median U.S. place (5,373), and 1,965 cooling degree days, 2.2 times 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 5,482 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 600 | 0 |
| February | 484 | 1 |
| March | 325 | 9 |
| April | 92 | 44 |
| May | 17 | 200 |
| June | 0 | 384 |
| July | 0 | 491 |
| August | 0 | 452 |
| September | 7 | 301 |
| October | 80 | 79 |
| November | 326 | 4 |
| December | 531 | 0 |
| Year (annual) | 2,461 | 1,965 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00098677. 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 Thomson's climate compare?
Thomson is warmer than 49 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 63.6°F is warmer than 84%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Thomson share this climate record?
Dearing has no NOAA station with 1991-2020 normals of its 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.
- Dearing, GA535 people · 6 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 Thomson's climate
What is the coldest month in Thomson?
January, with a normal high of 57°F and a normal low of 35°F. The warmest is July (91°F by day, 70°F at night).
Does it snow in Thomson?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Thomson's NOAA station; the nearest record that keeps one, Washington (23 miles away), records 1 inches of snow in a normal year.
What plant hardiness zone is Thomson in?
The USDA's 2023 map puts Thomson in zone 8b in ZIP code 30824, the nearest ZIP area.
How late can frost come in Thomson?
In half of years the last 32°F night comes after March 14; in one year in ten it comes after March 31. Waiting until March 31 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Georgia climateThe statewide normals and every place in the state
- Warrenton, GA9 miles from this station, 62.4°F a year
- Appling, GA11 miles from this station, 63.1°F a year
- Clarks Hill, SC22 miles from this station, 64.1°F a year
- Washington, GA23 miles from this station, 62.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made