Frost Dates for 85938 — Springerville, Arizona

Half of springs at Springerville, AZ see their last 32°F night by June 1; only one in ten is past it by May 17, and one in ten still has one after June 20. Planting tender crops after June 7 leaves a 30% risk of a frost on them, after June 12 20%, and after June 20 10%. The 19 days between the even-odds date and the one-in-ten date is narrower than at 61% of the 98 Arizona stations behind this site's ZIP pages.

In fall the first 32°F night comes by September 26 in half of years, as early as September 12 one year in ten, and holds off past October 7 one year in ten. A hard freeze of 28°F follows 7 days later, around October 3; in spring the one-in-ten date for 28°F is June 6, 14 days before the 32°F one. The freeze-free season lasts 114 days in a typical year, shorter than at 98% of the 98 Arizona stations; it reaches 133 days one year in ten and falls short of 94 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 11 days longer, to about June 12, and return around September 18. Severe cold of 16°F or below comes every winter, usually between November 1 and April 10.

July is the warmest month at Springerville, AZ, averaging 85°F by day and 52°F at night; December is the coldest at 50°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 53% of years.

Warmth for growing adds up to 2,249 growing degree days a year (base 50°F), fewer than at 97% of the 102 Arizona stations. 32% of them (719) have built up by the end of June, and July adds the most, 578. Precipitation totals 11.5 inches a year, most in August (2.9") and least in April (0.3"); May to September bring 68% of it.

The nearest other station, Saint Johns, AZ, 31 miles north of Springerville and 1,208 feet lower, has a last frost 30 days earlier (May 2), a first frost 18 days later (October 14), a season 50 days longer.

The first measurable snow (0.1 inch or more) in Springerville usually arrives around November 1, and the last of the season around April 11. Those are the middle dates across the winters of 1991–2020 at Greer, AZ, 14 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 51 days after the last snow.

ZIP 85938 is 4 miles from Springerville, AZ, which stands at 6,998 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 85925 (Eagar). The 2023 USDA Plant Hardiness Zone Map lists ZIP 85938 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.