🌷 Your Ultimate Garden Calendar!

Weather Almanac: Princeton, NJ 08540

🗓️ Historical norms for September

August October
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
September avg. precipitation
🌧️ 4.34"
September days below freezing
📉 ≈777.7 days
Average September lows 52°F – 56°F
USDA Zone
7a
Annual extreme lows 0°F to 5°F
Last Spring Frost (36°F)
🌷 May 12
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First Fall Frost (36°F)
🍂 Oct 2
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Book Recommendations (ads!)

📚 New York & New Jersey Month-by-Month Gardening: What to Do Each Month to Have a Beautiful Garden All Year

📚 Grow Great Vegetables in New Jersey

📚 Mid-Atlantic Gardener's Handbook, 2nd Edition: All You Need to Know to Plan, Plant & Maintain a Mid-Atlantic Garden

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: HIGHTSTOWN 2 W (USC00283951)

Precipitation climatic data from weather station: BLACKWELLS MILLS (USC00280847)

Agricultural climatic data from weather station: HIGHTSTOWN 2 W (USC00283951)