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USDA Hardiness Zone 6b

Frost Dates for 67801 — Dodge City, Kansas

NOAA 1991–2020 normals from Dodge City, KS (2,590 ft), 3 miles east.

Updated

In Dodge City, the last spring frost (32°F) is around April 21 in half of years and has passed by May 4 in nine years out of ten. The first fall frost comes around October 20, as early as October 4 one year in ten, leaving a typical freeze-free season of 179 days (NOAA, Dodge City, KS).

Last spring frost
April 21

50% probability

First fall frost
October 20

50% probability

Growing season
179 days

freeze-free, 50%

Hardiness zone
6b

-5 to 0°F (-20.6 to -17.8°C) coldest night

First snow
November 17

median, 1991–2020

Last snow
March 24

median, 1991–2020

Winters with snow
100%

30 of 30 observed

Snow per year
19.1"

NOAA normal

Frost risk by date in Dodge City

Half of springs at Dodge City, KS see their last 32°F night by April 21; only one in ten is past it by April 7, and one in ten still has one after May 4. Planting tender crops after April 27 leaves a 30% risk of a frost on them, after April 30 20%, and after May 4 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 65% of the 110 Kansas stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 20 in half of years, as early as October 4 one year in ten, and holds off past November 1 one year in ten. A hard freeze of 28°F follows 8 days later, around October 28; in spring the one-in-ten date for 28°F is April 26, 8 days before the 32°F one. The freeze-free season lasts 179 days in a typical year, shorter than at 75% of the 110 Kansas stations; it reaches 198 days one year in ten and falls short of 160 one year in ten. On average 128 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 9 days longer, to about April 30, and return around October 11. Severe cold of 16°F or below comes every winter, usually between November 23 and March 8.

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

Freeze probabilities 1991–2020 at Dodge City, KS, 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 67801 →Compare Dodge City with another place →

Weather by month in Dodge City

July is the warmest month at Dodge City, KS, averaging 94°F by day and 66°F at night; January is the coldest at 46°F and 20°F. A freezing night is all but certain in every month from November to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 20% of years.

Warmth for growing adds up to 4,220 growing degree days a year (base 50°F), more than at 64% of the 110 Kansas stations. 36% of them (1,501) have built up by the end of June, and July adds the most, 931. Precipitation totals 22.1 inches a year, most in June (3.3") and least in January (0.6"); May to September bring 62% of it.

Monthly normals 1991–2020 at Dodge City, KS
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan46200.6100%293
Feb49230.6100%2414
Mar60311.4100%1774
Apr69402.098%6194
May78513.020%<1462
Jun89623.30%0753
Jul94663.10%0931
Aug91653.00%0870
Sep84561.36%<1602
Oct71432.088%4261
Nov57300.8100%1852
Dec46221.0100%284

Monthly normals 1991–2020 at Dodge City, KS (2,590 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, Cimarron, KS, 18 miles west of Dodge City, has a last frost 1 day earlier (April 20), the same first-frost date, a season 3 days longer.

Frost dates for 67835 (Cimarron) →

When it snows in Dodge City, Kansas

The first measurable snow (0.1 inch or more) in Dodge City usually arrives around November 17, and the last of the season around March 24. Those are the middle dates across the winters of 1991–2020 at Dodge City, KS, 3.2 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 28 days after the last snow.

Planting calendar for 67801

What to do and when, from the 50% frost dates for Dodge City, Kansas
WhenWhat to do
February 10 – February 24Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 24 – March 10Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 24 – April 7Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 21 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 28Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 6Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 20 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 67801 is 3 miles from Dodge City, KS, which stands at 2,590 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 67801 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Kansas →

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 6b places in Kansas