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USDA Hardiness Zone 9b

Frost Dates for 93626 — Friant, California

NOAA 1991–2020 normals from Friant Government Camp, CA (410 ft), 2 miles southwest.

Updated

In Friant, the last spring frost (32°F) is around March 9 in half of years and has passed by April 16 in nine years out of ten. The first fall frost comes around December 1, as early as November 12 one year in ten, leaving a typical freeze-free season of 262 days (NOAA, Friant Government Camp, CA).

Last spring frost
March 9

50% probability

First fall frost
December 1

50% probability

Growing season
262 days

freeze-free, 50%

Hardiness zone
9b

25 to 30°F (-3.9 to -1.1°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
0%

0 of 20 observed

Snow per year
0"

NOAA normal

Frost risk by date in Friant

Half of springs at Friant Government Camp, CA see their last 32°F night by March 9; only one in ten is past it by January 22, and one in ten still has one after April 16. Planting tender crops after March 31 leaves a 30% risk of a frost on them, after April 7 20%, and after April 16 10%. The 38 days between the even-odds date and the one-in-ten date is wider than at 81% 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 1 in half of years, as early as November 12 one year in ten, and holds off past December 22 one year in ten. A hard freeze of 28°F follows 12 days later, around December 13; in spring the one-in-ten date for 28°F is February 28, 47 days before the 32°F one. The freeze-free season lasts 262 days in a typical year, shorter than at 61% of the 219 California stations; it reaches 314 days one year in ten and falls short of 224 one year in ten. On average 17 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 37 days longer, to about April 15, and return around November 15. A 24°F night is unusual: 39% of winters had one.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 21Apr 1Apr 6Apr 11Apr 15Apr 20Apr 23Apr 29May 4
32°FJan 22Feb 4Feb 17Feb 28Mar 9Mar 21Mar 31Apr 7Apr 16
28°F85% of yrsDec 19Dec 30Jan 4Jan 12Jan 19Jan 26Feb 1Feb 13Feb 28
24°F39% of yrstoo rare for a date
20°F5% of yrstoo rare for a date
16°F0% of yrstoo rare for a date
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 29Nov 3Nov 8Nov 12Nov 15Nov 19Nov 23Nov 28Dec 3
32°FNov 12Nov 18Nov 23Nov 27Dec 1Dec 4Dec 7Dec 12Dec 22
28°F85% of yrsNov 24Dec 1Dec 4Dec 9Dec 13Dec 19Dec 25Jan 2Jan 18
24°F39% of yrstoo rare for a date
20°F5% of yrstoo rare for a date
16°F0% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Friant Government Camp, CA, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 93626 →Compare Friant with another place →

Weather by month in Friant

July is the warmest month at Friant Government Camp, CA, averaging 99°F by day and 62°F at night; December is the coldest at 56°F and 37°F. From May to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 64% of years and March still brings one in 41% of years and April still brings one in 28% of years.

Warmth for growing adds up to 4,957 growing degree days a year (base 50°F), more than at 63% of the 283 California stations. 35% of them (1,741) have built up by the end of June, and July adds the most, 935. Precipitation totals 14.8 inches a year, most in January (3.1") and least in July (0.0"); May to September bring 5% of it.

Monthly normals 1991–2020 at Friant Government Camp, CA
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan56383.187%530
Feb61402.564%271
Mar66432.541%1163
Apr73441.428%1256
May83500.52%0506
Jun92560.20%0716
Jul99620.00%0935
Aug98600.00%0902
Sep92570.10%0728
Oct80500.82%0467
Nov66421.244%2157
Dec56372.590%729

Monthly normals 1991–2020 at Friant Government Camp, CA (410 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Auberry 2 NW, CA, 11 miles northeast of Friant and 1,680 feet higher, has a last frost 16 days later (March 25), a first frost 2 days later (December 3), a season 9 days shorter.

Frost dates for 93602 (Auberry) →

When it snows in Friant, California

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Friant Government Camp, CA, 2.3 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 93626

What to do and when, from the 50% frost dates for Friant, California
WhenWhat to do
December 29 – January 12Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 12 – January 26Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 9 – February 23Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 9 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by September 8Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by November 17Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
December 1 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 93626 is 2 miles from Friant Government Camp, CA, which stands at 410 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 93619 (Clovis). The 2023 USDA Plant Hardiness Zone Map lists ZIP 93626 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.

Frost dates across California →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

ZIP codes measured at the same station

Other zone 9b places in California