Frost Dates for 86053 — Kaibeto, Arizona

Half of springs at Tuba City, AZ see their last 32°F night by April 16; only one in ten is past it by March 31, and one in ten still has one after May 4. Planting tender crops after April 24 leaves a 30% risk of a frost on them, after April 28 20%, and after May 4 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 74% of the 98 Arizona stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 28 in half of years, as early as October 13 one year in ten, and holds off past November 12 one year in ten. A hard freeze of 28°F follows 10 days later, around November 7; in spring the one-in-ten date for 28°F is April 21, 13 days before the 32°F one. The freeze-free season lasts 193 days in a typical year, shorter than at 71% of the 98 Arizona stations; it reaches 217 days one year in ten and falls short of 166 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 14 days longer, to about April 30, and return around October 17. Severe cold of 16°F or below comes in 99% of winters, usually between December 10 and February 5.

July is the warmest month at Tuba City, AZ, averaging 95°F by day and 64°F at night; December is the coldest at 46°F and 23°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 86% of years and May still brings one in 13% of years.

Warmth for growing adds up to 4,031 growing degree days a year (base 50°F), fewer than at 72% of the 102 Arizona stations. 35% of them (1,414) have built up by the end of June, and July adds the most, 905. Precipitation totals 6.2 inches a year, most in September (1.2") and least in June (0.1"); May to September bring 53% of it.

The nearest other station, Page, AZ, 32 miles northwest of Kaibeto and 718 feet lower, has a last frost 20 days earlier (March 27), a first frost 12 days later (November 9), a season 33 days longer.

The first measurable snow (0.1 inch or more) in Kaibeto usually arrives around November 22, and the last of the season around March 29. Those are the middle dates across the winters of 1991–2020 at Betatakin, AZ, 32.4 miles away: half of years saw snow earlier, half later. Snow fell in 97% of those winters. The last 32°F night of spring typically comes 18 days after the last snow.

ZIP 86053 is 30 miles from Tuba City, AZ, which stands at 4,988 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. That is farther than 25 miles, so local frost can differ noticeably from these figures. 1 other ZIP code shares the station; its figures are presented in full for 86045 (Tuba City). The 2023 USDA Plant Hardiness Zone Map lists ZIP 86053 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.