Chatsworth, Georgia climate: Normal weather by month, frost dates and records
Chatsworth's normal year runs from 30°F January nights to 89°F July afternoons, with 57.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.6°C, January lows of −1°C, July highs of 32°C, 1,461 mm of precipitation a year.
- NOAA stationChatsworth 2
- Station IDUSC00091863
- Location34.76°N 84.76°W
- Elevation710 ft (216 m)
- Population4,943
On October 23, the normal high in Chatsworth is 71°F and the normal low 46°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Chatsworth.
- Jan 51° 30°
- Feb 55° 33°
- Mar 63° 40°
- Apr 72° 47°
- May 79° 56°
- Jun 86° 64°
- Jul 89° 68°
- Aug 89° 67°
- Sep 84° 60°
- Oct 74° 48°
- Nov 62° 38°
- Dec 53° 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 Chatsworth each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 30°F. The most precipitation falls in June (5.54 in), the least in October (3.45 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 51°F | 30°F | 40.5°F | 4.88 | 11 | <1 | 20 | 10 h |
| February | 55°F | 33°F | 44.0°F | 4.71 | 11 | <1 | 15 | 10 h 50 min |
| March | 63°F | 40°F | 51.4°F | 5.26 | 11 | <1 | 8 | 11 h 50 min |
| April | 72°F | 47°F | 59.5°F | 5.02 | 10 | <1 | 2 | 13 h |
| May | 79°F | 56°F | 67.4°F | 4.64 | 10 | 1 | <1 | 14 h |
| June | 86°F | 64°F | 75.1°F | 5.54 | 12 | 9 | <1 | 14 h 30 min |
| July | 89°F | 68°F | 78.5°F | 5.43 | 11 | 16 | <1 | 14 h 20 min |
| August | 89°F | 67°F | 77.6°F | 4.30 | 10 | 15 | <1 | 13 h 30 min |
| September | 84°F | 60°F | 72.0°F | 4.32 | 8 | 7 | <1 | 12 h 30 min |
| October | 74°F | 48°F | 61.0°F | 3.45 | 7 | <1 | 2 | 11 h 20 min |
| November | 62°F | 38°F | 50.2°F | 4.56 | 9 | <1 | 11 | 10 h 20 min |
| December | 53°F | 33°F | 43.3°F | 5.39 | 11 | <1 | 17 | 9 h 50 min |
| Year (annual) | 71°F | 49°F | 60.0°F | 57.50 | 120 | 48 | 75 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 10°C | −1°C | 4.7°C | 124 mm |
| February | 13°C | 1°C | 6.7°C | 120 mm |
| March | 17°C | 5°C | 10.8°C | 134 mm |
| April | 22°C | 8°C | 15.3°C | 128 mm |
| May | 26°C | 13°C | 19.7°C | 118 mm |
| June | 30°C | 18°C | 23.9°C | 141 mm |
| July | 32°C | 20°C | 25.8°C | 138 mm |
| August | 32°C | 19°C | 25.3°C | 109 mm |
| September | 29°C | 16°C | 22.2°C | 110 mm |
| October | 23°C | 9°C | 16.1°C | 88 mm |
| November | 17°C | 3°C | 10.1°C | 116 mm |
| December | 12°C | 1°C | 6.3°C | 137 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00091863; 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 Chatsworth?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, October has the fewest days with rain (7).
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 USC00091863.
When is the last frost in Chatsworth?
In Chatsworth, the last spring frost (32°F) comes after April 2 in half of years and after April 21 in one year in ten; the first autumn frost comes before November 1 in half of years and before October 21 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 21 year in 10 after April 21; 9 in 10 after March 14
- First autumn frost, half of years before
- November 11 year in 10 before October 21; 9 in 10 before November 17
NOAA puts the median frost-free season at 212 days, and the season without a hard freeze (28°F) at 240 days.
A hard freeze (28°F) comes after March 19 in half of springs and before November 13 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Chatsworth in zone 8a in ZIP code 30705, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Chatsworth's NOAA station is in zone 8a: the coldest night of a typical year reaches 12°F (21 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 USC00091863; 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 Chatsworth?
In a normal year in Chatsworth, 48 days a year reach 90°F (1 of them 100°F or more), 75 nights fall to 32°F or colder and 120 days bring measurable precipitation.
- Days at 90°F or more
- 48a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 75a normal year
- Days that stay below freezing
- 2high of 32°F or less
- Days with 0.01 inch of precipitation
- 120a normal year
The highest temperature in this station's record (since 1999) is 105°F, on July 1, 2012; the lowest is 2°F, on January 31, 2014.
The wettest calendar year on that record is 2018, with 91.48 in; the snowiest season is 1986–87, with 11.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00091863; records: ACIS (NOAA Regional Climate Centers), station USC00091863. Records use complete months only; a month missing more than three days is left out.
How sunny is Chatsworth?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Chatsworth, 4.4 kWh per square metre a day. August is the sunniest month (80%) and February the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 2.6 |
| February | 66% | 3.1 |
| March | 70% | 4.2 |
| April | 76% | 5.5 |
| May | 77% | 6.0 |
| June | 79% | 6.3 |
| July | 78% | 6.0 |
| August | 80% | 5.6 |
| September | 79% | 4.8 |
| October | 78% | 3.9 |
| November | 76% | 3.0 |
| December | 67% | 2.2 |
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 Chatsworth need?
A normal year in Chatsworth brings 3,346 heating degree days, 38% fewer than the median U.S. place (5,373), and 1,566 cooling degree days, 73% 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 4,714 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 761 | 0 |
| February | 590 | 1 |
| March | 427 | 6 |
| April | 201 | 37 |
| May | 56 | 131 |
| June | 2 | 305 |
| July | 0 | 417 |
| August | 0 | 392 |
| September | 15 | 225 |
| October | 171 | 47 |
| November | 449 | 5 |
| December | 675 | 1 |
| Year (annual) | 3,346 | 1,566 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00091863. 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 Chatsworth been warmer than normal lately?
2025 averaged 60.9°F, 0.9°F above the 1991-2020 normal of 60.0°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.4°F | +0.4°F | 69.14 |
| 2022 | 59.8°F | −0.2°F | 57.17 |
| 2023 | 60.8°F | +0.8°F | 56.61 |
| 2025 | 60.9°F | +0.9°F | 59.72 |
Source: observed years: ACIS, station USC00091863. A year counts only with all twelve months complete.
How does Chatsworth's climate compare?
Chatsworth is warmer than 11 of the other 100 places with their own NOAA record in Georgia, and wetter than 74. Across the 7,247 U.S. stations with normals, its annual mean of 60.0°F is warmer than 75%.
In the Köppen classification computed from these normals, Chatsworth 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 Chatsworth share this climate record?
2 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.
- Eton, GA851 people · 5 mi N
- Conasauga, TN111 people · 17 mi N
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 Chatsworth's climate
What is the coldest month in Chatsworth?
January, with a normal high of 51°F and a normal low of 30°F. The warmest is July (89°F by day, 68°F at night).
What is the rainiest month in Chatsworth?
June, with 5.54 in of precipitation in a normal year; the driest is October with 3.45 in.
What plant hardiness zone is Chatsworth in?
The USDA's 2023 map puts Chatsworth in zone 8a in ZIP code 30705, the nearest ZIP area. By the same method at Chatsworth's NOAA station, the coldest night of a typical year reaches 12°F (21 years, 1991-2020): zone 8a.
How late can frost come in Chatsworth?
In half of years the last 32°F night comes after April 2; in one year in ten it comes after April 21. Waiting until April 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Georgia climateThe statewide normals and every place in the state
- Dalton, GA7 miles from this station, 60.9°F a year
- Jasper, GA27 miles from this station, 58.3°F a year
- Fort Oglethorpe, GA31 miles from this station, 59.4°F a year
- Chattanooga, TN31 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