Frost Dates for 46750 — Huntington, Indiana

Half of springs at Huntington, IN see their last 32°F night by May 1; only one in ten is past it by April 17, and one in ten still has one after May 16. Planting tender crops after May 7 leaves a 30% risk of a frost on them, after May 10 20%, and after May 16 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 70% of the 125 Indiana stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 14 in half of years, as early as October 1 one year in ten, and holds off past October 28 one year in ten. A hard freeze of 28°F follows 10 days later, around October 24; in spring the one-in-ten date for 28°F is May 5, 11 days before the 32°F one. The freeze-free season lasts 166 days in a typical year, shorter than at 96% of the 125 Indiana stations; it reaches 185 days one year in ten and falls short of 146 one year in ten. On average 133 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 10 days longer, to about May 11, and return around October 4. Severe cold of 16°F or below comes every winter, usually between December 1 and March 17.

July is the warmest month at Huntington, IN, averaging 84°F by day and 62°F at night; January is the coldest at 33°F and 17°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 51% of years.

Warmth for growing adds up to 3,040 growing degree days a year (base 50°F), fewer than at 87% of the 125 Indiana stations. 35% of them (1,061) have built up by the end of June, and July adds the most, 715. Precipitation totals 40.9 inches a year, most in May (4.7") and least in February (2.2"); May to September bring 51% of it.

The nearest other station, Fort Wayne International Airport, IN, 16 miles northeast of Huntington, has a last frost 7 days earlier (April 24), a first frost 7 days later (October 21), a season 12 days longer.

The first measurable snow (0.1 inch or more) in Huntington usually arrives around December 4, and the last of the season around March 14. Those are the middle dates across the winters of 1991–2020 at Huntington, IN, 1.2 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 48 days after the last snow.

ZIP 46750 is 1 mile from Huntington, IN, which stands at 725 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 46750 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°C) over 1991–2020; a zone describes winter lows, not frost dates.