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Weather Almanac: Grass Valley, CA 95949

🗓️ Historical norms for September

August October
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
September avg. precipitation
🌧️ 0.86"
September days below freezing
📉 ≈0.0 days
Average September lows 49°F – 53°F
USDA Zone
9b
Annual extreme lows 25°F to 30°F
Last Spring Frost (36°F)
🌷 May 8
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First Fall Frost (36°F)
🍂 Oct 19
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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: GRASS VALLEY #2 (USC00043573)

Precipitation climatic data from weather station: GRASS VALLEY #2 (USC00043573)

Agricultural climatic data from weather station: GRASS VALLEY #2 (USC00043573)