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Weather Almanac: Alton, MO 65606

🗓️ Historical norms for May

April June
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
May avg. precipitation
🌧️ 4.79"
May days below freezing
📉 ≈0.1 days
Average May lows 49°F – 56°F
USDA Zone
7a
Annual extreme lows 0°F to 5°F
Last Spring Frost (36°F)
🌷 May 3
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First Fall Frost (36°F)
🍂 Oct 1
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Book Recommendations (ads!)

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

📚 The Timber Press Guide to Vegetable Gardening in the Midwest

📚 Growing the Midwest Garden: Regional Ornamental Gardening

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: ALTON 6 SE (USC00230127)

Precipitation climatic data from weather station: ALTON 6 SE (USC00230127)

Agricultural climatic data from weather station: ALTON 6 SE (USC00230127)