Cornelius

What is the climate like in Cornelius?

The best time to visit Cornelius is typically June – September, with trip comfort peaking in July (9.2/10). Cornelius is warmest in August, when daily highs average 85°F (29°C), and coolest in February, when lows fall to about 37°F (3°C). The wettest month is typically December and the driest is July; the year sees roughly 51 in (1287 mm) of precipitation.

• Best time to visitJune – September — comfort peaks in July (9.2/10)
• Warmest monthAugust — average high 85°F (29°C)
• Coolest monthFebruary — average low 37°F (3°C)
• Wettest monthDecember (7.9 in (201 mm))
• Driest monthJuly (0.2 in (6 mm))
• Annual precipitation51 in (1287 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromForest Grove, 3 km away (1893-2026)