Bellevue

What is the climate like in Bellevue?

The best time to visit Bellevue is typically August – September, with trip comfort peaking in September (7.1/10). Bellevue is warmest in July, when daily highs average 82°F (28°C), and coolest in January, when lows fall to about 24°F (-4°C). The wettest month is typically July and the driest is September; the year sees roughly 44 in (1118 mm) of precipitation.

• Best time to visitAugust – September — comfort peaks in September (7.1/10)
• Warmest monthJuly — average high 82°F (28°C)
• Coolest monthJanuary — average low 24°F (-4°C)
• Wettest monthJuly (4.6 in (117 mm))
• Driest monthSeptember (2.9 in (72 mm))
• Annual precipitation44 in (1118 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromNorwalk Wwtp, 19 km away (1894-2026)