Frost Dates for 46737 — Fremont, Indiana

Half of springs at Angola, IN see their last 32°F night by April 30; only one in ten is past it by April 17, and one in ten still has one after May 15. Planting tender crops after May 6 leaves a 30% risk of a frost on them, after May 9 20%, and after May 15 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 16 in half of years, as early as October 1 one year in ten, and holds off past October 31 one year in ten. A hard freeze of 28°F follows 13 days later, around October 29; in spring the one-in-ten date for 28°F is May 5, 10 days before the 32°F one. The freeze-free season lasts 167 days in a typical year, shorter than at 94% of the 125 Indiana stations; it reaches 187 days one year in ten and falls short of 148 one year in ten. On average 145 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 8 days longer, to about May 8, and return around October 5. Severe cold of 16°F or below comes every winter, usually between November 29 and March 19.

July is the warmest month at Angola, IN, averaging 82°F by day and 61°F at night; January is the coldest at 31°F and 16°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 49% of years.

Warmth for growing adds up to 2,721 growing degree days a year (base 50°F), fewer than at 99% of the 125 Indiana stations. 34% of them (924) have built up by the end of June, and July adds the most, 666. Precipitation totals 38.9 inches a year, most in May (4.4") and least in February (2.3"); May to September bring 50% of it.

The nearest other station, Coldwater St School, MI, 17 miles north of Fremont, has a last frost 2 days later (May 2), a first frost 3 days earlier (October 13), a season 4 days shorter.

The first measurable snow (0.1 inch or more) in Fremont usually arrives around November 23, and the last of the season around March 31. Those are the middle dates across the winters of 1991–2020 at Angola, IN, 5.3 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 30 days after the last snow.

ZIP 46737 is 5 miles from Angola, IN, which stands at 1,020 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 5 other ZIP codes share the station; its figures are presented in full for 46703 (Angola). The 2023 USDA Plant Hardiness Zone Map lists ZIP 46737 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.