🌷 Your Ultimate Garden Calendar!

Weather Almanac: Castaic, CA 91384

🗓️ Historical norms for December

November January
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
December avg. precipitation
🌧️ 2.87"
December days below freezing
📉 ≈0.1 days
Average December lows 43°F – 46°F
USDA Zone
10a
Annual extreme lows 30°F to 35°F
Last Spring Frost (36°F)
🌷 May 19
View full details
First Fall Frost (36°F)
🍂 Oct 25
View full details

Book Recommendations (ads!)

📚 Month-by-Month Gardening California: What to Do Each Month to Have a Beautiful Garden All Year

📚 Pacific Northwest Month-by-Month Gardening: What to Do Each Month to Have a Beautiful Garden All Year

📚 California Gardener's Handbook: Your Complete Guide: Select - Plan - Plant - Maintain - Problem-solve

F: Forecast
H: Normal High Temp
L: Normal Low Temp
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

Temperature climatic data from weather station: NEWHALL 5NW (USC00046161)

Precipitation climatic data from weather station: PIRU 2 ESE (USC00046940)

Agricultural climatic data from weather station: SANDBERG (USW00023187)