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USDA Hardiness Zone 7b

Frost Dates for 73052 — Lindsay, Oklahoma

NOAA 1991–2020 normals from Lindsay 2 W, OK (980 ft), 2 miles southwest.

Updated

In Lindsay, the last spring frost (32°F) is around April 13 in half of years and has passed by April 28 in nine years out of ten. The first fall frost comes around October 27, as early as October 12 one year in ten, leaving a typical freeze-free season of 196 days (NOAA, Lindsay 2 W, OK).

Last spring frost
April 13

50% probability

First fall frost
October 27

50% probability

Growing season
196 days

freeze-free, 50%

Hardiness zone
7b

5 to 10°F (-15.0 to -12.2°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
35%

7 of 20 observed

Snow per year
1.5"

NOAA normal

Frost risk by date in Lindsay

Half of springs at Lindsay 2 W, OK see their last 32°F night by April 13; only one in ten is past it by March 29, and one in ten still has one after April 28. Planting tender crops after April 19 leaves a 30% risk of a frost on them, after April 23 20%, and after April 28 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 86% of the 114 Oklahoma stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 27 in half of years, as early as October 12 one year in ten, and holds off past November 10 one year in ten. A hard freeze of 28°F follows 8 days later, around November 4; in spring the one-in-ten date for 28°F is April 19, 9 days before the 32°F one. The freeze-free season lasts 196 days in a typical year, shorter than at 91% of the 114 Oklahoma stations; it reaches 218 days one year in ten and falls short of 174 one year in ten. On average 86 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 8 days longer, to about April 21, and return around October 18. Severe cold of 16°F or below comes every winter, usually between December 5 and February 23.

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

Freeze probabilities 1991–2020 at Lindsay 2 W, OK, 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 73052 →Compare Lindsay with another place →

Weather by month in Lindsay

July is the warmest month at Lindsay 2 W, OK, averaging 95°F by day and 69°F at night; January is the coldest at 53°F and 25°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 85% of years.

Warmth for growing adds up to 5,010 growing degree days a year (base 50°F), fewer than at 70% of the 114 Oklahoma stations. 37% of them (1,869) have built up by the end of June, and July adds the most, 997. Precipitation totals 34.2 inches a year, most in May (5.0") and least in January (1.4"); May to September bring 52% of it.

Monthly normals 1991–2020 at Lindsay 2 W, OK
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan53251.4100%2414
Feb57281.4100%1833
Mar65362.6100%9132
Apr74453.585%2299
May82565.05%0581
Jun89653.10%0810
Jul95692.80%0997
Aug95683.30%0967
Sep87593.50%0690
Oct76473.463%2359
Nov64352.1100%11106
Dec54272.1100%2223

Monthly normals 1991–2020 at Lindsay 2 W, OK (980 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, Purcell 2 SW, OK, 16 miles northeast of Lindsay, has a last frost 9 days earlier (April 4), a first frost 6 days later (November 2), a season 14 days longer.

Frost dates for 73080 (Purcell) →

When it snows in Lindsay, Oklahoma

Measurable snow is rare here: only 7 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Cox City 2 NE, OK, 8.9 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 73052

What to do and when, from the 50% frost dates for Lindsay, Oklahoma
WhenWhat to do
February 2 – February 16Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 16 – March 2Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 16 – March 30Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 13 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 4Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 13Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 27 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 73052 is 2 miles from Lindsay 2 W, OK, which stands at 980 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 73052 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Oklahoma →

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.

Other zone 7b places in Oklahoma