Frost Dates for 92284 — Yucca Valley, California

Half of springs at Yucca Valley, CA see their last 32°F night by March 14; only one in ten is past it by February 8, and one in ten still has one after April 1. Planting tender crops after March 22 leaves a 30% risk of a frost on them, after March 27 20%, and after April 1 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 93% of the 220 California stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 28 in half of years, as early as November 10 one year in ten, and holds off past December 12 one year in ten. A hard freeze of 28°F follows 10 days later, around December 8; in spring the one-in-ten date for 28°F is March 19, 13 days before the 32°F one. The freeze-free season lasts 255 days in a typical year, shorter than at 66% of the 219 California stations; it reaches 296 days one year in ten and falls short of 230 one year in ten. On average 31 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 17 days longer, to about March 31, and return around November 15. Nights of 24°F, cold enough to damage hardier plants, come in 73% of winters and 16°F in 1%.

August is the warmest month at Yucca Valley, CA, averaging 96°F by day and 68°F at night; December is the coldest at 58°F and 34°F. A freezing night is all but certain in every month from December to January (a 90% chance or more). From May to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 76% of years and March still brings one in 70% of years and April still brings one in 11% of years.

Warmth for growing adds up to 5,224 growing degree days a year (base 50°F), more than at 71% of the 283 California stations. 36% of them (1,875) have built up by the end of June, and August adds the most, 982. Precipitation totals 6.5 inches a year, most in January (1.4") and least in June (0.0"); May to September bring 15% of it.

The nearest other station, Yucca Mesa, CA, 4 miles north of Yucca Valley and 196 feet higher, has a last frost 26 days earlier (February 16), a first frost 12 days later (December 10), a season 41 days longer.

Measurable snow is rare here: only 1 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Twentynine Palms, CA, 21.6 miles away, so there is no typical first-snow date to plan around.

ZIP 92284 is 3 miles from Yucca Valley, CA, which stands at 3,249 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 92284 in zone 9a, the band where the coldest night of the year averaged 20 to 25°F (-6.7 to -3.9°C) over 1991–2020; a zone describes winter lows, not frost dates.