Frost Dates for 83347 — Paul, Idaho

Half of springs at Paul 1ENE, ID see their last 32°F night by May 6; only one in ten is past it by April 23, and one in ten still has one after May 22. Planting tender crops after May 13 leaves a 30% risk of a frost on them, after May 16 20%, and after May 22 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 66% of the 67 Idaho stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 6 in half of years, as early as September 22 one year in ten, and holds off past October 19 one year in ten. A hard freeze of 28°F follows 12 days later, around October 18; in spring the one-in-ten date for 28°F is May 7, 15 days before the 32°F one. The freeze-free season lasts 151 days in a typical year, longer than at 58% of the 67 Idaho stations; it reaches 171 days one year in ten and falls short of 129 one year in ten. On average 159 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 16 days longer, to about May 22, and return around September 24. Severe cold of 16°F or below comes every winter, usually between November 19 and February 28.

July is the warmest month at Paul 1ENE, ID, averaging 85°F by day and 55°F at night; January is the coldest at 33°F and 19°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 68% of years.

Warmth for growing adds up to 2,143 growing degree days a year (base 50°F), fewer than at 55% of the 67 Idaho stations. 27% of them (586) have built up by the end of June, and July adds the most, 631. Precipitation totals 10.9 inches a year, most in May (1.7") and least in July (0.3"); May to September bring 34% of it.

The nearest other station, Burley Municipal Airport, ID, 13 miles south of Paul, has a last frost 1 day later (May 7), a first frost 2 days earlier (October 4), a season 1 day shorter.

The first measurable snow (0.1 inch or more) in Paul usually arrives around November 30, and the last of the season around March 13. Those are the middle dates across the winters of 1991–2020 at Paul 1ENE, ID, 8.8 miles away: half of years saw snow earlier, half later. Snow fell in 90% of those winters. The last 32°F night of spring typically comes 54 days after the last snow.

ZIP 83347 is 9 miles from Paul 1ENE, ID, which stands at 4,150 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 83347 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.