Weather Almanac: Portage, IN 46368

🌱 Growing Season

USDA Zone

6a

Annual extreme lows -10°F to -5°F

Last Spring Frost (36°F)

🌷 May 12

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First Fall Frost (36°F)

🍂 Oct 7

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📚 Book Recommendations (ads!)

📚 Illinois, Indiana & Ohio Month-by-Month Gardening: What to Do Each Month to Have a Beautiful Garden All Year

📚 Grow Great Vegetables Indiana

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

📍 Zip Codes

46368 (Portage, IN)

Temperature climatic data from weather station: INDIANA DUNES NATL LKS (USC00124244)

Precipitation climatic data from weather station: INDIANA DUNES NATL LKS (USC00124244)

Agricultural climatic data from weather station: INDIANA DUNES NATL LKS (USC00124244)