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USDA Hardiness Zone 8b

Frost Dates for 39092 — Lake, Mississippi

NOAA 1991–2020 normals from Forest, MS (450 ft), 5 miles northwest.

Updated

In Lake, the last spring frost (32°F) is around March 28 in half of years and has passed by April 20 in nine years out of ten. The first fall frost comes around November 2, as early as October 20 one year in ten, leaving a typical freeze-free season of 221 days (NOAA, Forest, MS).

Last spring frost
March 28

50% probability

First fall frost
November 2

50% probability

Growing season
221 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
24%

5 of 21 observed

Snow per year
—

NOAA normal

Frost risk by date in Lake

Half of springs at Forest, MS see their last 32°F night by March 28; only one in ten is past it by March 7, and one in ten still has one after April 20. Planting tender crops after April 6 leaves a 30% risk of a frost on them, after April 12 20%, and after April 20 10%. The 23 days between the even-odds date and the one-in-ten date is wider than at 92% of the 96 Mississippi 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 2 in half of years, as early as October 20 one year in ten, and holds off past November 18 one year in ten. A hard freeze of 28°F follows 10 days later, around November 12; in spring the one-in-ten date for 28°F is April 3, 17 days before the 32°F one. The freeze-free season lasts 221 days in a typical year, shorter than at 83% of the 96 Mississippi stations; it reaches 247 days one year in ten and falls short of 195 one year in ten. On average 56 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 April 11, and return around October 24. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 75%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 23Mar 28Apr 2Apr 6Apr 11Apr 14Apr 19Apr 24Apr 30
32°FMar 7Mar 15Mar 20Mar 24Mar 28Apr 2Apr 6Apr 12Apr 20
28°FFeb 18Feb 26Mar 3Mar 9Mar 14Mar 17Mar 22Mar 26Apr 3
24°FJan 29Feb 6Feb 15Feb 21Feb 27Mar 2Mar 8Mar 13Mar 19
20°F95% of yrsJan 5Jan 19Jan 27Jan 31Feb 6Feb 15Feb 22Mar 1Mar 10
16°F75% of yrsDec 18Dec 31Jan 10Jan 18Jan 25Jan 31Feb 4Feb 13Feb 26
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 12Oct 16Oct 19Oct 22Oct 24Oct 27Oct 30Nov 2Nov 7
32°FOct 20Oct 24Oct 28Oct 31Nov 2Nov 5Nov 8Nov 12Nov 18
28°FOct 31Nov 3Nov 6Nov 9Nov 12Nov 16Nov 21Nov 25Dec 1
24°FNov 7Nov 13Nov 17Nov 22Nov 26Nov 30Dec 3Dec 9Dec 28
20°F95% of yrsNov 16Nov 26Dec 1Dec 4Dec 10Dec 20Dec 31Jan 5Jan 18
16°F75% of yrsNov 27Dec 6Dec 13Dec 24Jan 1Jan 6Jan 13Jan 24Feb 4

Freeze probabilities 1991–2020 at Forest, MS, 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 39092 →Compare Lake with another place →

Weather by month in Lake

July is the warmest month at Forest, MS, averaging 91°F by day and 68°F at night; January is the coldest at 58°F and 34°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 41% of years.

Warmth for growing adds up to 5,455 growing degree days a year (base 50°F), fewer than at 73% of the 96 Mississippi stations. 41% of them (2,234) have built up by the end of June, and July adds the most, 905.

Monthly normals 1991–2020 at Forest, MS
MonthHigh °FLow °F32°F nightNights ≤ 32°FGDD 50°F
Jan5834100%1567
Feb623797%11100
Mar694393%6229
Apr765041%1396
May83583%0634
Jun89650%0808
Jul91680%0905
Aug91670%0897
Sep87620%0727
Oct785142%1442
Nov674098%9165
Dec593699%1484

Monthly normals 1991–2020 at Forest, MS (450 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, Newton Exp Stn, MS, 15 miles east of Lake, has a last frost 3 days earlier (March 25), the same first-frost date, a season 1 day longer.

Frost dates for 39345 (Newton) →

When it snows in Lake, Mississippi

Measurable snow is rare here: only 5 of 21 winters from 1991 to 2020 recorded 0.1 inch or more at Forest, MS, 5.2 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 39092

What to do and when, from the 50% frost dates for Lake, Mississippi
WhenWhat to do
January 17 – January 31Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 31 – February 14Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 28 – March 14Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 28 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 10Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 19Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 2 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 39092 is 5 miles from Forest, MS, which stands at 450 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 39074 (Forest). The 2023 USDA Plant Hardiness Zone Map lists ZIP 39092 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 Mississippi →

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 Mississippi