Sewell

What is the climate like in Sewell?

The best time to visit Sewell is typically September, the year's most comfortable month (6.6/10). Sewell is warmest in July, when daily highs average 87°F (31°C), and coolest in January, when lows fall to about 30°F (-1°C). The wettest month is typically July and the driest is November; the year sees roughly 45 in (1155 mm) of precipitation.

• Best time to visitSeptember — the year's comfort peak (6.6/10)
• Warmest monthJuly — average high 87°F (31°C)
• Coolest monthJanuary — average low 30°F (-1°C)
• Wettest monthJuly (5.0 in (126 mm))
• Driest monthNovember (2.8 in (70 mm))
• Annual precipitation45 in (1155 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromPhila Intl AP, 14 km away (1940-2026)