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USDA Hardiness Zone 9b

Frost Dates for 95360 — Newman, California

NOAA 1991–2020 normals from Newman, CA (90 ft), 2 miles south.

Updated

In Newman, the last spring frost (32°F) is around February 26 in half of years and has passed by April 21 in nine years out of ten. The first fall frost comes around November 29, as early as November 12 one year in ten, leaving a typical freeze-free season of 273 days (NOAA, Newman, CA).

Last spring frost
February 26

50% probability

First fall frost
November 29

50% probability

Growing season
273 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 21 observed

Snow per year
0"

NOAA normal

Frost risk by date in Newman

Half of springs at Newman, CA see their last 32°F night by February 26; only one in ten is past it by January 18, and one in ten still has one after April 21. Planting tender crops after March 26 leaves a 30% risk of a frost on them, after April 9 20%, and after April 21 10%. The 54 days between the even-odds date and the one-in-ten date is the widest 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 November 29 in half of years, as early as November 12 one year in ten, and holds off past December 21 one year in ten. A hard freeze of 28°F follows 13 days later, around December 12; in spring the one-in-ten date for 28°F is March 31, 21 days before the 32°F one. The freeze-free season lasts 273 days in a typical year, shorter than at 53% of the 219 California stations; it reaches 318 days one year in ten and falls short of 220 one year in ten. On average 23 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 40 days longer, to about April 7, and return around November 14. A 24°F night is unusual: 42% 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 3Mar 14Mar 24Mar 31Apr 7Apr 14Apr 21Apr 28May 6
32°FJan 18Jan 31Feb 7Feb 16Feb 26Mar 7Mar 26Apr 9Apr 21
28°F87% of yrsDec 21Dec 30Jan 5Jan 12Jan 20Jan 27Feb 1Feb 18Mar 31
24°F42% of yrstoo rare for a date
20°F10% of yrstoo rare for a date
16°F1% 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 26Nov 1Nov 6Nov 10Nov 14Nov 17Nov 20Nov 24Dec 1
32°FNov 12Nov 17Nov 21Nov 25Nov 29Dec 2Dec 5Dec 10Dec 21
28°F87% of yrsNov 24Dec 1Dec 4Dec 8Dec 12Dec 18Dec 26Jan 2Jan 16
24°F42% of yrstoo rare for a date
20°F10% of yrstoo rare for a date
16°F1% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Newman, 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 95360 →Compare Newman with another place →

Weather by month in Newman

July is the warmest month at Newman, CA, averaging 100°F by day and 62°F at night; December is the coldest at 60°F and 38°F. From May to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 59% of years and March still brings one in 31% of years and April still brings one in 23% of years.

Warmth for growing adds up to 5,688 growing degree days a year (base 50°F), more than at 84% of the 283 California stations. 39% of them (2,241) have built up by the end of June, and July adds the most, 955. Precipitation totals 11.8 inches a year, most in January (2.7") and least in July (0.0"); May to September bring 5% of it.

Monthly normals 1991–2020 at Newman, CA
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan60382.787%849
Feb67412.259%3121
Mar73441.831%1261
Apr80460.723%1391
May88520.54%0622
Jun96580.10%0798
Jul100620.00%0955
Aug98600.00%0908
Sep95570.00%0783
Oct85500.62%<1544
Nov71421.152%2207
Dec60382.189%949

Monthly normals 1991–2020 at Newman, CA (90 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, Turlock #2, CA, 17 miles northeast of Newman, has a last frost 51 days earlier (January 6), a first frost 21 days later (December 20), a season 78 days longer.

Frost dates for 95380 (Turlock) →

When it snows in Newman, California

Measurable snow is rare here: only 0 of 21 winters from 1991 to 2020 recorded 0.1 inch or more at Newman, CA, 2.3 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 95360

What to do and when, from the 50% frost dates for Newman, California
WhenWhat to do
December 18 – January 1Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 1 – January 15Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
January 29 – February 12Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
February 26 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by September 6Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by November 15Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 29 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 95360 is 2 miles from Newman, CA, which stands at 90 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 95360 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