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USDA Hardiness Zone 9a

Frost Dates for 78653 — Manor, Texas

NOAA 1991–2020 normals from Elgin 1 N, TX (594 ft), 11 miles east.

Updated

In Manor, the last spring frost (32°F) is around March 4 in half of years and has passed by March 23 in nine years out of ten. The first fall frost comes around November 24, as early as November 5 one year in ten, leaving a typical freeze-free season of 264 days (NOAA, Elgin 1 N, TX).

Last spring frost
March 4

50% probability

First fall frost
November 24

50% probability

Growing season
264 days

freeze-free, 50%

Hardiness zone
9a

20 to 25°F (-6.7 to -3.9°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
8%

2 of 24 observed

Snow per year
0"

NOAA normal

Frost risk by date in Manor

Half of springs at Elgin 1 N, TX see their last 32°F night by March 4; only one in ten is past it by February 12, and one in ten still has one after March 23. Planting tender crops after March 12 leaves a 30% risk of a frost on them, after March 17 20%, and after March 23 10%. The 19 days between the even-odds date and the one-in-ten date is narrower than at 63% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 24 in half of years, as early as November 5 one year in ten, and holds off past December 13 one year in ten. A hard freeze of 28°F follows 15 days later, around December 9; in spring the one-in-ten date for 28°F is March 13, 10 days before the 32°F one. The freeze-free season lasts 264 days in a typical year, longer than at 68% of the 339 Texas stations; it reaches 298 days one year in ten and falls short of 238 one year in ten. On average 18 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 14 days longer, to about March 18, and return around November 12. Nights of 24°F, cold enough to damage hardier plants, come in 89% of winters and 16°F in 16%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FFeb 28Mar 5Mar 10Mar 14Mar 18Mar 22Mar 26Apr 1Apr 6
32°FFeb 12Feb 20Feb 26Mar 1Mar 4Mar 8Mar 12Mar 17Mar 23
28°F99% of yrsJan 18Jan 29Feb 6Feb 14Feb 21Feb 26Mar 2Mar 7Mar 13
24°F89% of yrsDec 31Jan 11Jan 19Jan 27Feb 2Feb 9Feb 15Feb 25Mar 4
20°F52% of yrsDec 21Dec 31Jan 8Jan 16Jan 23Jan 31Feb 6Feb 11Feb 23
16°F16% 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 31Nov 3Nov 6Nov 9Nov 12Nov 15Nov 19Nov 23Nov 30
32°FNov 5Nov 11Nov 15Nov 20Nov 24Nov 28Dec 2Dec 6Dec 13
28°F99% of yrsNov 17Nov 25Nov 30Dec 4Dec 9Dec 15Dec 20Dec 27Jan 5
24°F89% of yrsDec 1Dec 7Dec 17Dec 25Dec 31Jan 5Jan 9Jan 18Feb 1
20°F52% of yrsDec 10Dec 23Dec 30Jan 4Jan 7Jan 13Jan 21Feb 1Feb 8
16°F16% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Elgin 1 N, TX, 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 78653 →Compare Manor with another place →

Weather by month in Manor

August is the warmest month at Elgin 1 N, TX, averaging 96°F by day and 73°F at night; January is the coldest at 61°F and 39°F. A freezing night is all but certain in every month from December to January (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 88% of years and March still brings one in 61% of years.

Warmth for growing adds up to 6,959 growing degree days a year (base 50°F), more than at 68% of the 351 Texas stations. 41% of them (2,882) have built up by the end of June, and August adds the most, 1,072. Precipitation totals 36.3 inches a year, most in May (4.9") and least in July (2.0"); May to September bring 42% of it.

Monthly normals 1991–2020 at Elgin 1 N, TX
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan61393.098%6120
Feb64432.188%4169
Mar71493.261%1344
Apr79572.73%0530
May85654.90%0775
Jun92713.00%0945
Jul95732.00%01059
Aug96732.30%01072
Sep90683.00%0868
Oct81584.03%0617
Nov70493.163%2313
Dec62413.096%5147

Monthly normals 1991–2020 at Elgin 1 N, TX (594 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, Austin-Camp Mabry, TX, 13 miles west of Manor, has a last frost 12 days earlier (February 20), a first frost 9 days later (December 3), a season 27 days longer.

Frost dates for 78723 (Austin) →

When it snows in Manor, Texas

Measurable snow is rare here: only 2 of 24 winters from 1991 to 2020 recorded 0.1 inch or more at Elgin 1 N, TX, 10.6 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 78653

What to do and when, from the 50% frost dates for Manor, Texas
WhenWhat to do
December 24 – January 7Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 7 – January 21Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 4 – February 18Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 4 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by September 1Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by November 10Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 24 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 78653 is 11 miles from Elgin 1 N, TX, which stands at 594 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 78653 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.

Frost dates across Texas →

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 9a places in Texas