🌷 Your Ultimate Garden Calendar!

Weather Almanac: Harvey, IA 50119

🗓️ Historical norms for September

August October
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
September avg. precipitation
🌧️ 3.57"
September days below freezing
📉 ≈0.2 days
Average September lows 51°F – 57°F
USDA Zone
5b
Annual extreme lows -15°F to -10°F
Last Spring Frost (36°F)
🌷 May 5
View full details
First Fall Frost (36°F)
🍂 Sep 27
View full details

Book Recommendations (ads!)

📚 Prairie & Plains States Month-by-Month Gardening: What to Do Each Month to Have a Beautiful Garden All Year

📚 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

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: KNOXVILLE (USC00134502)

Precipitation climatic data from weather station: PELLA 1S (USC00136527)

Agricultural climatic data from weather station: KNOXVILLE (USC00134502)