Weather Almanac: Umatilla, OR 97882

🗓️ Historical norms for December

December avg. precipitation
🌧️ 1.34"
December days below freezing
📉 ≈18.3 days
Average December lows ≈28.8°F
USDA Zone
7b
Annual extreme lows 5°F to 10°F
Last Spring Frost (36°F)
🌷 May 9
First Fall Frost (36°F)
🍂 Sep 23

Temperature climatic data from weather station: MCNARY DAM NO 2 (USC00355392)

Precipitation climatic data from weather station: MCNARY DAM NO 2 (USC00355392)

Agricultural climatic data from weather station: HERMISTON 2 NW (USC00353818)