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Weather Almanac: Janesville, WI 53545

🗓️ Historical norms for August

July September
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
August avg. precipitation
🌧️ 4.47"
August days below freezing
📉 ≈0.0 days
Average August lows 56°F – 62°F
USDA Zone
5b
Annual extreme lows -15°F to -10°F
Last Spring Frost (36°F)
🌷 May 14
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First Fall Frost (36°F)
🍂 Sep 25
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Book Recommendations (ads!)

📚 Minnesota & Wisconsin Month-by-Month Gardening: What to Do Each Month to Have A Beautiful Garden All Year

📚 Grow Great Vegetables Minnesota and Wisconsin

📚 Midwest Gardener's Handbook, 2nd Edition: All You Need to Know to Plan, Plant & Maintain a Midwest 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: AFTON (USC00470045)

Precipitation climatic data from weather station: AFTON (USC00470045)

Agricultural climatic data from weather station: AFTON (USC00470045)