🌷 Your Ultimate Garden Calendar!

Weather Almanac: Mason City, IL 62664

🗓️ Historical norms for December

November January
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
December avg. precipitation
🌧️ 2.33"
December days below freezing
📉 ≈26.0 days
Average December lows 14°F – 26°F
USDA Zone
6a
Annual extreme lows -10°F to -5°F
Last Spring Frost (36°F)
🌷 May 5
View full details
First Fall Frost (36°F)
🍂 Sep 26
View full details

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 Illinois

📚 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: MASON CITY 2N (USC00115413)

Precipitation climatic data from weather station: MASON CITY 2N (USC00115413)

Agricultural climatic data from weather station: MASON CITY 2N (USC00115413)