🌷 Your Ultimate Garden Calendar!

Weather Almanac: Swanzey, NH 03446

🗓️ Historical norms for September

August October
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
September avg. precipitation
🌧️ 3.81"
September days below freezing
📉 ≈1.4 days
Average September lows 45°F – 50°F
USDA Zone
5b
Annual extreme lows -15°F to -10°F
Last Spring Frost (36°F)
🌷 May 31
View full details
First Fall Frost (36°F)
🍂 Sep 12
View full details

Book Recommendations (ads!)

📚 New England Month-by-Month Gardening: What To Do Each Month To Have a Beautiful Garden All Year - Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont

📚 New England Gardener's Handbook: All You Need to Know to Plan, Plant & Maintain a New England Garden

📚 The Timber Press Guide to Vegetable Gardening in the Northeast

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: KEENE (USC00274399)

Precipitation climatic data from weather station: KEENE (USC00274399)

Agricultural climatic data from weather station: KEENE (USC00274399)