Roswell, Georgia Climate by Month
Roswell, Georgia, United States
Hot summers and cool winters, with rain spread through the year.
The climate in Roswell is one of hot summers and cool winters, with rain spread through the year. July is the warmest month, with highs around 89°F (32°C); January is the coolest at 52°F (11°C), and nights dip to 33°F (1°C). About 54 in (1376 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 89°F(32°C)
- Average high, July
- Coldest nights
- 33°F(1°C)
- Average low, January
- Rain per year
- 54 in(1376 mm)
- No clear rainy season
- Humidity
- 67%
- Sunniest: July
Best and worst months in Roswell
Best for weatherApril and October are the best time for weather in Roswell: highs near 73°F (23°C) and about 4.0 in (103 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 52°F (11°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Roswell weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 52°F(11°C) | 33°F(1°C) | 5.0 in(126 mm) | 64% | 2.5 |
| FebFebruary | 57°F(14°C) | 37°F(3°C) | 5.2 in(132 mm) | 64% | 3.0 |
| MarMarch | 65°F(18°C) | 43°F(6°C) | 5.6 in(143 mm) | 63% | 4.2 |
| AprAprilBest | 73°F(23°C) | 50°F(10°C) | 4.6 in(117 mm) | 58% | 5.2 |
| MayMay | 81°F(27°C) | 59°F(15°C) | 3.9 in(98 mm) | 65% | 6.0 |
| JunJune | 87°F(30°C) | 66°F(19°C) | 4.3 in(108 mm) | 71% | 5.9 |
| JulJuly | 89°F(32°C) | 70°F(21°C) | 4.7 in(119 mm) | 70% | 6.1 |
| AugAugust | 88°F(31°C) | 69°F(20°C) | 4.3 in(110 mm) | 70% | 5.5 |
| SepSeptember | 83°F(28°C) | 63°F(17°C) | 4.0 in(101 mm) | 69% | 4.6 |
| OctOctoberBest | 73°F(23°C) | 52°F(11°C) | 3.5 in(88 mm) | 67% | 3.6 |
| NovNovember | 63°F(17°C) | 41°F(5°C) | 3.8 in(97 mm) | 68% | 2.7 |
| DecDecember | 54°F(12°C) | 36°F(2°C) | 5.4 in(137 mm) | 69% | 2.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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