Roswell weather by month
Average highs run from 52°F in January to 89°F in July, and January nights average 33°F. It gets 51 inches of rain and melted snow a year and 1 inches of snow. Expect about 53 days a year at 90°F or hotter. The most comfortable months are April to May and September to October.
Best time to visit Roswell
For comfortable weather, go in April to May and September to October. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 52°F | 33°F | 4.6 in | 0.7 in | 7 | 0 | 17 | cool |
| February | 56°F | 36°F | 4.5 in | 0.2 in | 7 | 0 | 11 | cool |
| March | 64°F | 42°F | 4.7 in | 0.1 in | 7 | 0 | 4 | mild |
| April | 73°F | 49°F | 3.9 in | 0.0 in | 7 | 0 | 0 | mild |
| May | 80°F | 59°F | 3.8 in | 0.0 in | 7 | 2 | 0 | warm |
| June | 86°F | 66°F | 4.7 in | 0.0 in | 7 | 11 | 0 | warm |
| July | 89°F | 70°F | 4.7 in | 0.0 in | 7 | 17 | 0 | hot |
| August | 88°F | 69°F | 4.5 in | 0.0 in | 7 | 16 | 0 | hot |
| September | 83°F | 63°F | 4.1 in | 0.0 in | 5 | 6 | 0 | warm |
| October | 73°F | 51°F | 3.4 in | 0.0 in | 4 | 0 | 0 | mild |
| November | 63°F | 41°F | 4.2 in | 0.0 in | 6 | 0 | 4 | mild days, chilly nights |
| December | 54°F | 36°F | 4.4 in | 0.2 in | 7 | 0 | 13 | cool |
| Year | 72°F avg | 51°F avg | 51.4 in | 1.2 in | 77 | 53 | 49 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Atlanta Peachtree Airport, GA (USW00053863), 10.8 miles from the city center; snowfall from Mableton 1 N, GA. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Roswell
The shortest day is December 21, with 9h 53m of daylight; the longest is June 21, with 14h 25m. The earliest sunset comes around November 30 (5:27 pm) and the latest around June 23 (8:52 pm). The sun sets after 8 pm on 153 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:42 am | 5:51 pm | 10h 08m |
| February | 7:22 am | 6:21 pm | 10h 59m |
| March | 7:47 am | 7:45 pm | 11h 57m |
| April | 7:06 am | 8:08 pm | 13h 02m |
| May | 6:36 am | 8:31 pm | 13h 56m |
| June | 6:25 am | 8:50 pm | 14h 24m |
| July | 6:37 am | 8:49 pm | 14h 12m |
| August | 6:59 am | 8:23 pm | 13h 25m |
| September | 7:20 am | 7:43 pm | 12h 23m |
| October | 7:42 am | 7:02 pm | 11h 20m |
| November | 7:10 am | 5:33 pm | 10h 23m |
| December | 7:35 am | 5:29 pm | 9h 54m |
Calculated for 2026 at the center of Roswell with NOAA's solar equations, in local clock time (Eastern Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Roswell getting warmer?
The last 10 years averaged 2.7°F warmer than the 20th century. See the climate stripes for Roswell.Frequently asked questions
What is the warmest month in Roswell?
July is the warmest month, with an average high of 89°F and an average low of 70°F (NOAA 1991-2020 normals).
What is the coldest month in Roswell?
January is the coldest, with average lows of 33°F and highs of 52°F.
What is the rainiest month in Roswell?
July gets the most precipitation, 4.7 inches on average. October is the driest at 3.4 inches.
Does it snow in Roswell?
Yes. Roswell averages 1 inches of snow a year.
When is the best time to visit Roswell?
For comfortable weather, April to May and September to October. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Roswell?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Roswell profile.
Compare the weather: Roswell vs Sandy Springs, Roswell vs Johns Creek, Roswell vs Atlanta, Roswell vs Mableton.