Frost Dates for 93705 — Fresno, California

In the 85% of winters that bring a 32°F night, half of springs at Fresno Yosemite International Airport, CA see their last 32°F night by January 14; only one in ten is past it by December 22, and one in ten still has one after February 11. Counting the winters with no freeze at all, the risk of a 32°F night after February 11 is under 9% and after January 14 43%. The 28 days between the even-odds date and the one-in-ten date is narrower than at 60% of the 220 California stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by December 14 in half of years, as early as November 29 one year in ten, and holds off past January 12 one year in ten. A hard freeze of 28°F is less common: it came in 33% of winters. The freeze-free season lasts 337 days in a typical year, longer than at 88% of the 219 California stations; it reaches 365 days one year in ten and falls short of 305 one year in ten. On average 11 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 32 days longer, to about February 15, and return around December 1. A 24°F night is unusual: 4% of winters had one.

July is the warmest month at Fresno Yosemite International Airport, CA, averaging 98°F by day and 69°F at night; December is the coldest at 55°F and 40°F. From March to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 19% of years.

Warmth for growing adds up to 5,768 growing degree days a year (base 50°F), more than at 85% of the 283 California stations. 38% of them (2,196) have built up by the end of June, and July adds the most, 1,038. Precipitation totals 11.0 inches a year, most in January (2.2") and least in July (0.0"); May to September bring 6% of it.

The nearest other station, Fresno 5 NE, CA, 7 miles east of Fresno, has a last frost 16 days later (January 30), a first frost 3 days earlier (December 11), a season 18 days shorter.

Measurable snow is rare here: only 1 of 30 winters from 1991 to 2020 recorded 0.1 inch or more at Fresno Yosemite International Airport, CA, 6 miles away, so there is no typical first-snow date to plan around.

ZIP 93705 is 6 miles from Fresno Yosemite International Airport, CA, which stands at 333 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 13 other ZIP codes share the station; its figures are presented in full for 93722 (Fresno). The 2023 USDA Plant Hardiness Zone Map lists ZIP 93705 in zone 9b, the band where the coldest night of the year averaged 25 to 30°F (-3.9 to -1.1°C) over 1991–2020; a zone describes winter lows, not frost dates.