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Frost dates for Pocahontas 1, Arkansas

Half of years have their last spring frost by March 31, but 1 year in 10 still frosts after April 18.

A frost date is really a percentile from 30 years of records at a nearby weather station: in about half of years a frost still comes after the median date. Both numbers are below, so you can choose the risk yourself.

The odds

Last spring frost

How often a frost still comes on or after each date.

1 year in 10
April 18
1 year in 5
April 11
3 years in 10
April 7
2 years in 5
April 4
Half of years (the median)
March 31

First fall freeze

How often the first freeze comes on or before each date.

1 year in 10
October 21
1 year in 5
October 25
3 years in 10
October 27
2 years in 5
October 30
Half of years (the median)
November 1
Growing season
about 214 days
Hardiness zones nearby
7a, 7b
Summer days
a usual high of about 31 °C89 °F
Lettuce and spinach run to seed
May to September, in hot, long days (how we know)

Summer and rain

A growing garden needs about 25 mm1 in of water a week, rain and watering together. Here is what a normal month brings.

Month by month

January
high ~8 °C46 °F · low ~-3 °C26 °F · rain ~97 mm3.8 in
February
high ~10 °C50 °F · low ~-2 °C29 °F · rain ~100 mm3.9 in
March
high ~16 °C60 °F · low ~3 °C38 °F · rain ~120 mm4.7 in
April
high ~22 °C71 °F · low ~8 °C47 °F · rain ~136 mm5.4 in
May
high ~26 °C79 °F · low ~14 °C56 °F · rain ~137 mm5.4 in
June
high ~31 °C87 °F · low ~18 °C65 °F · rain ~88 mm3.5 in
July
high ~32 °C90 °F · low ~21 °C69 °F · rain ~93 mm3.6 in
August
high ~32 °C89 °F · low ~20 °C68 °F · rain ~99 mm3.9 in
September
high ~28 °C83 °F · low ~15 °C60 °F · rain ~98 mm3.8 in
October
high ~22 °C72 °F · low ~8 °C47 °F · rain ~98 mm3.9 in
November
high ~15 °C59 °F · low ~2 °C36 °F · rain ~123 mm4.9 in
December
high ~9 °C49 °F · low ~-2 °C29 °F · rain ~118 mm4.6 in

Where these numbers come from

NOAA NCEI 1991–2020 Climate Normals, the Pocahontas 1 station (listed by NOAA as Pocahontas 1 HCN, USC00035820), at 36.26, -90.97. These are that station’s own records, unshifted. The further your garden is from it, the less exactly they describe your ground. The planner finds the nearest station to your garden and lowers its confidence with distance, so no number is presented as if it were measured in your garden.

Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a few hundred feet away does not. No table can know that about your garden. A few seasons of your own logged frosts can.

ZIP codes nearest this station

72412, 72413, 72415, 72425, 72434, 72444, 72449, 72455, 72459, 72460, 72478.

Nearby stations

Other stations in Arkansas.

What can I plant now? ›

When do I plant? · Where the dates come from

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