Weather Almanac: Upland, CA 91784

🌱 Growing Season

USDA Zone

10a

Annual extreme lows 30°F to 35°F

Last Spring Frost (36°F)

🌷 Feb 24

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First Fall Frost (36°F)

🍂 Dec 2

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🗓️ Monthly Weather Almanac

❄️ January

❤️ February

☘️ March

🌧️ April

🌷 May

👰 June

🎆 July

🏖️ August

📚 September

🎃 October

🦃 November

🎄 December

📚 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

Temperature climatic data from weather station: ONTARIO INTL AP (USW00003102)

Precipitation climatic data from weather station: ONTARIO INTL AP (USW00003102)

Agricultural climatic data from weather station: ONTARIO INTL AP (USW00003102)