Frost Dates for 84014 — Centerville, Utah

Half of springs at Bountiful Bench, UT see their last 32°F night by April 25; only one in ten is past it by April 5, and one in ten still has one after May 14. Planting tender crops after May 1 leaves a 30% risk of a frost on them, after May 6 20%, and after May 14 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 55% of the 66 Utah 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 9 one year in ten, and holds off past November 7 one year in ten. A hard freeze of 28°F follows 11 days later, around November 4; in spring the one-in-ten date for 28°F is April 28, 16 days before the 32°F one. The freeze-free season lasts 181 days in a typical year, longer than at 79% of the 66 Utah stations; it reaches 203 days one year in ten and falls short of 158 one year in ten. On average 119 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 13 days longer, to about May 8, and return around October 14. Severe cold of 16°F or below comes every winter, usually between December 1 and February 15.

July is the warmest month at Bountiful Bench, UT, averaging 87°F by day and 66°F at night; January is the coldest at 36°F and 23°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 32% of years.

Warmth for growing adds up to 3,057 growing degree days a year (base 50°F), more than at 65% of the 66 Utah stations. 29% of them (892) have built up by the end of June, and July adds the most, 820. Precipitation totals 27.6 inches a year, most in April (3.7") and least in July (0.7"); May to September bring 28% of it.

The nearest other station, Bountiful-Val Verda, UT, 5 miles south of Centerville and 410 feet lower, has a last frost 1 day earlier (April 24), a first frost 5 days earlier (October 19), a season 3 days shorter.

The first measurable snow (0.1 inch or more) in Centerville usually arrives around October 27, and the last of the season around May 3. Those are the middle dates across the winters of 1991–2020 at Bountiful Bench, UT, 2.9 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 8 days before the last snow.

ZIP 84014 is 3 miles from Bountiful Bench, UT, which stands at 4,950 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 84010 (Bountiful). The 2023 USDA Plant Hardiness Zone Map lists ZIP 84014 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.