Frost Dates for 84713 — Beaver, Utah

Half of springs at Beaver Canyon Pwr House, UT see their last 32°F night by June 1; only one in ten is past it by May 15, and one in ten still has one after June 15. Planting tender crops after June 6 leaves a 30% risk of a frost on them, after June 9 20%, and after June 15 10%. The 14 days between the even-odds date and the one-in-ten date is the narrowest of the 66 Utah stations behind this site's ZIP pages.

In fall the first 32°F night comes by September 28 in half of years, as early as September 13 one year in ten, and holds off past October 11 one year in ten. A hard freeze of 28°F follows 9 days later, around October 7; in spring the one-in-ten date for 28°F is June 5, 10 days before the 32°F one. The freeze-free season lasts 120 days in a typical year, shorter than at 76% of the 66 Utah stations; it reaches 140 days one year in ten and falls short of 97 one year in ten. On average 187 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 9 days longer, to about June 10, and return around September 21. Severe cold of 16°F or below comes every winter, usually between November 7 and April 6.

July is the warmest month at Beaver Canyon Pwr House, UT, averaging 80°F by day and 52°F at night; December is the coldest at 36°F and 16°F. A freezing night is all but certain in every month from October to May (a 90% chance or more). From July to August the chance of a 32°F night stays under 10% each month. In spring, June still brings one in 50% of years.

Warmth for growing adds up to 1,605 growing degree days a year (base 50°F), fewer than at 92% of the 66 Utah stations. 25% of them (401) have built up by the end of June, and July adds the most, 484. Precipitation totals 20.3 inches a year, most in April (2.2") and least in June (0.8"); May to September bring 37% of it.

The first measurable snow (0.1 inch or more) in Beaver usually arrives around November 1, and the last of the season around May 15. Those are the middle dates across the winters of 1991–2020 at Beaver Canyon Pwr House, UT, 13 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 17 days after the last snow.

ZIP 84713 is 13 miles from Beaver Canyon Pwr House, UT, which stands at 7,275 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 84713 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.