Frost Dates for 63935 — Doniphan, Missouri

Half of springs at Doniphan, MO see their last 32°F night by April 12; only one in ten is past it by March 25, and one in ten still has one after April 29. Planting tender crops after April 19 leaves a 30% risk of a frost on them, after April 23 20%, and after April 29 10%. The 17 days between the even-odds date and the one-in-ten date is wider than at 66% of the 158 Missouri stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 26 in half of years, as early as October 11 one year in ten, and holds off past November 6 one year in ten. A hard freeze of 28°F follows 8 days later, around November 3; in spring the one-in-ten date for 28°F is April 17, 12 days before the 32°F one. The freeze-free season lasts 196 days in a typical year, longer than at 54% of the 158 Missouri stations; it reaches 216 days one year in ten and falls short of 176 one year in ten. On average 109 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 11 days longer, to about April 23, and return around October 16. Severe cold of 16°F or below comes every winter, usually between December 11 and February 25.

July is the warmest month at Doniphan, MO, averaging 90°F by day and 68°F at night; January is the coldest at 46°F and 24°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 77% of years.

Warmth for growing adds up to 4,316 growing degree days a year (base 50°F), more than at 82% of the 158 Missouri stations. 37% of them (1,610) have built up by the end of June, and July adds the most, 893. Precipitation totals 51.8 inches a year, most in May (5.7") and least in January (3.4"); May to September bring 41% of it.

The nearest other station, Corning, AR, 21 miles southeast of Doniphan, has a last frost 16 days earlier (March 27), a first frost 9 days later (November 4), a season 28 days longer.

The first measurable snow (0.1 inch or more) in Doniphan usually arrives around December 23, and the last of the season around February 8. Those are the middle dates across the winters of 1991–2020 at Doniphan, MO, 2.7 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 63 days after the last snow.

ZIP 63935 is 3 miles from Doniphan, MO, which stands at 289 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 63935 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.