Weather Almanac: Santa Rosa, CA 95404

🗓️ Historical norms for December

December avg. precipitation
🌧️ 6.19"
December days below freezing
📉 ≈5.7 days
Average December lows 36°F – 42°F
USDA Zone
9b
Annual extreme lows 25°F to 30°F
Last Spring Frost (36°F)
🌷 Apr 6
First Fall Frost (36°F)
🍂 Nov 10

Temperature climatic data from weather station: SANTA ROSA (USC00047965)

Precipitation climatic data from weather station: SANTA ROSA (USC00047965)

Agricultural climatic data from weather station: SANTA ROSA (USC00047965)