Last frost date in Pella, Iowa

April 20

Average last frost in spring. In an early year (1 in 10) it's over by April 6; in a late year (1 in 10) it comes after May 4.

October 19

Average first frost in fall. 1 year in 10 it comes by October 1.

Source: NOAA U.S. Climate Normals 1991–2020, station Knoxville (USC00134502), 11 miles from Pella, elevation 895 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

What to plant now

Frost dates for Pella, Iowa
Early yearAverageLate year
Last frost in springApr 6Apr 20May 4
First frost in fallOct 1Oct 19Nov 1

Frost-free days in an average year: 180

Light frost, frost and hard freeze in Pella
Chance in a yearAverage last in springAverage first in fall
Light frost (36°F)Every yearApr 30Oct 7
Frost (32°F)Every yearApr 20Oct 19
Hard freeze (28°F)Every yearApr 10Oct 29

Nights at 32°F or colder in an average year: 133

What to plant now in Pella

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.

Nearby in Iowa

All 41 places in Iowa

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