Frost Dates for 66032 — Garnett, Kansas

Half of springs at Garnett 1 E, KS see their last 32°F night by April 17; only one in ten is past it by April 1, and one in ten still has one after May 1. Planting tender crops after April 24 leaves a 30% risk of a frost on them, after April 27 20%, and after May 1 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 44% of the 110 Kansas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 22 in half of years, as early as October 7 one year in ten, and holds off past November 4 one year in ten. A hard freeze of 28°F follows 10 days later, around November 1; in spring the one-in-ten date for 28°F is April 22, 9 days before the 32°F one. The freeze-free season lasts 189 days in a typical year, longer than at 53% of the 110 Kansas stations; it reaches 209 days one year in ten and falls short of 167 one year in ten. On average 107 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 28, and return around October 14. Severe cold of 16°F or below comes every winter, usually between November 29 and March 4.

July is the warmest month at Garnett 1 E, KS, averaging 89°F by day and 68°F at night; January is the coldest at 41°F and 20°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 90% of years and May still brings one in 11% of years.

Warmth for growing adds up to 4,079 growing degree days a year (base 50°F), fewer than at 53% of the 110 Kansas stations. 36% of them (1,458) have built up by the end of June, and July adds the most, 887. Precipitation totals 40.6 inches a year, most in May (5.5") and least in January (1.2"); May to September bring 58% of it.

The nearest other station, Osawatomie, KS, 22 miles northeast of Garnett, has a last frost 3 days earlier (April 14), a first frost 3 days later (October 25), a season 3 days longer.

The first measurable snow (0.1 inch or more) in Garnett usually arrives around December 9, and the last of the season around March 2. Those are the middle dates across the winters of 1991–2020 at Garnett 1 E, KS, 2.3 miles away: half of years saw snow earlier, half later. Snow fell in 83% of those winters. The last 32°F night of spring typically comes 46 days after the last snow.

ZIP 66032 is 2 miles from Garnett 1 E, KS, which stands at 998 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 66032 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.