Decatur

What is the climate like in Decatur?

The best time to visit Decatur is typically September – October, with trip comfort peaking in October (7.2/10). Decatur is warmest in July, when daily highs average 89°F (32°C), and coolest in January, when lows fall to about 37°F (3°C). The wettest month is typically March and the driest is October; the year sees roughly 52 in (1318 mm) of precipitation.

• Best time to visitSeptember – October — comfort peaks in October (7.2/10)
• Warmest monthJuly — average high 89°F (32°C)
• Coolest monthJanuary — average low 37°F (3°C)
• Wettest monthMarch (5.2 in (131 mm))
• Driest monthOctober (3.0 in (77 mm))
• Annual precipitation52 in (1318 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromAtlanta Hartsfield-jackson Int, 21 km away (1930-2026)