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USDA Hardiness Zone 8b

Frost Dates for 71001 — Arcadia, Louisiana

NOAA 1991–2020 normals from Bienville 3 NE, LA (307 ft), 14 miles south.

Updated

In Arcadia, the last spring frost (32°F) is around March 19 in half of years and has passed by April 10 in nine years out of ten. The first fall frost comes around November 9, as early as October 27 one year in ten, leaving a typical freeze-free season of 237 days (NOAA, Bienville 3 NE, LA).

Last spring frost
March 19

50% probability

First fall frost
November 9

50% probability

Growing season
237 days

freeze-free, 50%

Hardiness zone
8b

15 to 20°F (-9.4 to -6.7°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
32%

6 of 19 observed

Snow per year
0.7"

NOAA normal

Frost risk by date in Arcadia

Half of springs at Bienville 3 NE, LA see their last 32°F night by March 19; only one in ten is past it by February 26, and one in ten still has one after April 10. Planting tender crops after March 30 leaves a 30% risk of a frost on them, after April 3 20%, and after April 10 10%. The 22 days between the even-odds date and the one-in-ten date is narrower than at 49% of the 88 Louisiana 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 9 in half of years, as early as October 27 one year in ten, and holds off past November 29 one year in ten. A hard freeze of 28°F follows 14 days later, around November 23; in spring the one-in-ten date for 28°F is March 25, 16 days before the 32°F one. The freeze-free season lasts 237 days in a typical year, shorter than at 92% of the 88 Louisiana stations; it reaches 265 days one year in ten and falls short of 211 one year in ten. On average 42 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 18 days longer, to about April 6, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 39%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 16Mar 23Mar 30Apr 2Apr 6Apr 9Apr 12Apr 17Apr 23
32°FFeb 26Mar 4Mar 11Mar 15Mar 19Mar 25Mar 30Apr 3Apr 10
28°FFeb 6Feb 18Feb 24Feb 28Mar 4Mar 8Mar 13Mar 18Mar 25
24°F99% of yrsJan 13Jan 25Jan 30Feb 5Feb 14Feb 22Feb 28Mar 4Mar 11
20°F80% of yrsDec 29Jan 6Jan 15Jan 21Jan 27Jan 31Feb 7Feb 18Mar 3
16°F39% 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 18Oct 23Oct 26Oct 29Nov 1Nov 2Nov 5Nov 9Nov 16
32°FOct 27Oct 31Nov 3Nov 6Nov 9Nov 13Nov 17Nov 22Nov 29
28°FNov 2Nov 8Nov 13Nov 18Nov 23Nov 27Dec 1Dec 6Dec 12
24°F99% of yrsNov 13Nov 24Nov 30Dec 4Dec 8Dec 13Dec 23Jan 1Jan 10
20°F80% of yrsDec 1Dec 10Dec 19Dec 27Jan 1Jan 5Jan 10Jan 18Feb 1
16°F39% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Bienville 3 NE, LA, 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 71001 →Compare Arcadia with another place →

Weather by month in Arcadia

July is the warmest month at Bienville 3 NE, LA, averaging 93°F by day and 72°F at night; January is the coldest at 58°F and 36°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 80% of years and April still brings one in 27% of years.

Warmth for growing adds up to 6,091 growing degree days a year (base 50°F), fewer than at 83% of the 88 Louisiana stations. 41% of them (2,486) have built up by the end of June, and July adds the most, 1,003. Precipitation totals 60.8 inches a year, most in January (6.2") and least in August (3.6"); May to September bring 36% of it.

Monthly normals 1991–2020 at Bienville 3 NE, LA
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan58366.299%1379
Feb61395.697%8113
Mar70465.580%3272
Apr77535.927%<1444
May84615.20%0698
Jun90695.40%0880
Jul93724.20%01003
Aug93713.60%0995
Sep89653.70%0807
Oct78534.821%1495
Nov67434.689%5209
Dec59376.199%1296

Monthly normals 1991–2020 at Bienville 3 NE, LA (307 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, Ruston La Tech, LA, 16 miles east of Arcadia, has a last frost 8 days earlier (March 11), a first frost 7 days later (November 16), a season 11 days longer.

Frost dates for 71270 (Ruston) →

When it snows in Arcadia, Louisiana

Measurable snow is rare here: only 6 of 19 winters from 1991 to 2020 recorded 0.1 inch or more at Arcadia, LA, 2 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 71001

What to do and when, from the 50% frost dates for Arcadia, Louisiana
WhenWhat to do
January 8 – January 22Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 22 – February 5Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 19 – March 5Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 19 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 17Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 26Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 9 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 71001 is 14 miles from Bienville 3 NE, LA, which stands at 307 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 71251 (Jonesboro). The 2023 USDA Plant Hardiness Zone Map lists ZIP 71001 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Louisiana →

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 8b places in Louisiana