New Haven

What is the climate like in New Haven?

The best time to visit New Haven is typically August – September, with trip comfort peaking in September (7.5/10). New Haven is warmest in July, when daily highs average 84°F (29°C), and coolest in January, when lows fall to about 23°F (-5°C). The wettest month is typically May and the driest is September; the year sees roughly 41 in (1046 mm) of precipitation.

• Best time to visitAugust – September — comfort peaks in September (7.5/10)
• Warmest monthJuly — average high 84°F (29°C)
• Coolest monthJanuary — average low 23°F (-5°C)
• Wettest monthMay (4.5 in (113 mm))
• Driest monthSeptember (2.4 in (61 mm))
• Annual precipitation41 in (1046 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromFt Wayne Intl AP, 20 km away (1939-2026)