Weather Almanac: Corvallis, OR 97331

🗓️ Historical norms for December

December avg. precipitation
🌧️ 7.71"
December days below freezing
📉 ≈13.0 days
Average December lows 31°F – 36°F
USDA Zone
8b
Annual extreme lows 15°F to 20°F
Last Spring Frost (36°F)
🌷 May 24
First Fall Frost (36°F)
🍂 Oct 1

Temperature climatic data from weather station: CORVALLIS STATE UNIV (USC00351862)

Precipitation climatic data from weather station: CORVALLIS STATE UNIV (USC00351862)

Agricultural climatic data from weather station: CORVALLIS STATE UNIV (USC00351862)