Chehalis

What is the climate like in Chehalis?

The best time to visit Chehalis is typically June – August, with trip comfort peaking in July (8.7/10). Chehalis is warmest in August, when daily highs average 80°F (27°C), and coolest in February, when lows fall to about 36°F (2°C). The wettest month is typically December and the driest is July; the year sees roughly 55 in (1390 mm) of precipitation.

• Best time to visitJune – August — comfort peaks in July (8.7/10)
• Warmest monthAugust — average high 80°F (27°C)
• Coolest monthFebruary — average low 36°F (2°C)
• Wettest monthDecember (8.3 in (210 mm))
• Driest monthJuly (0.5 in (12 mm))
• Annual precipitation55 in (1390 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromCentralia, 6 km away (1893-2022)