🌷 Your Ultimate Garden Calendar!

Weather Almanac: Waltham, MA 02453

🗓️ Historical norms for May

April June
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
May avg. precipitation
🌧️ 3.85"
May days below freezing
📉 ≈0.4 days
Average May lows 46°F – 49°F
USDA Zone
6b
Annual extreme lows -5°F to 0°F
Last Spring Frost (36°F)
🌷 May 12
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First Fall Frost (36°F)
🍂 Sep 29
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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

📚 Grow Great Vegetables in Massachusetts

📚 New England Gardener's Handbook: All You Need to Know to Plan, Plant & Maintain a New England 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: BEDFORD HANSCOM FLD (USW00014702)

Precipitation climatic data from weather station: BEDFORD HANSCOM FLD (USW00014702)

Agricultural climatic data from weather station: BEDFORD HANSCOM FLD (USW00014702)