Frost Dates for 22932 — Crozet, Virginia

Half of springs at Free Union, VA see their last 32°F night by April 19; only one in ten is past it by April 5, and one in ten still has one after May 5. Planting tender crops after April 25 leaves a 30% risk of a frost on them, after April 30 20%, and after May 5 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 59% of the 128 Virginia stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 24 in half of years, as early as October 10 one year in ten, and holds off past November 5 one year in ten. A hard freeze of 28°F follows 8 days later, around November 1; in spring the one-in-ten date for 28°F is April 21, 14 days before the 32°F one. The freeze-free season lasts 186 days in a typical year, shorter than at 65% of the 128 Virginia stations; it reaches 206 days one year in ten and falls short of 165 one year in ten. On average 117 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 30, and return around October 14. Severe cold of 16°F or below comes every winter, usually between December 13 and March 4.

July is the warmest month at Free Union, VA, averaging 86°F by day and 64°F at night; January is the coldest at 45°F and 24°F. A freezing night is all but certain in every month from November 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 18% of years.

Warmth for growing adds up to 3,538 growing degree days a year (base 50°F), fewer than at 66% of the 128 Virginia stations. 36% of them (1,267) have built up by the end of June, and July adds the most, 772. Precipitation totals 46.7 inches a year, most in September (5.1") and least in February (2.8"); May to September bring 47% of it.

The nearest other station, Waynesboro Wtp, VA, 9 miles west of Crozet and 680 feet higher, has a last frost 2 days later (April 21), a first frost 1 day earlier (October 23), a season 2 days shorter.

The first measurable snow (0.1 inch or more) in Crozet usually arrives around December 27, and the last of the season around February 19. Those are the middle dates across the winters of 1991–2020 at Free Union, VA, 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 59 days after the last snow.

ZIP 22932 is 7 miles from Free Union, VA, which stands at 590 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 22932 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.