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USDA Hardiness Zone 5b

Frost Dates for 68632 — David City, Nebraska

NOAA 1991–2020 normals from David City, NE (1,610 ft), under a mile southwest.

Updated

In David City, the last spring frost (32°F) is around April 26 in half of years and has passed by May 8 in nine years out of ten. The first fall frost comes around October 11, as early as September 28 one year in ten, leaving a typical freeze-free season of 168 days (NOAA, David City, NE).

Last spring frost
April 26

50% probability

First fall frost
October 11

50% probability

Growing season
168 days

freeze-free, 50%

Hardiness zone
5b

-15 to -10°F (-26.1 to -23.3°C) coldest night

First snow
November 11

median, 1991–2020

Last snow
March 28

median, 1991–2020

Winters with snow
100%

22 of 22 observed

Snow per year
31.8"

NOAA normal

Frost risk by date in David City

Half of springs at David City, NE see their last 32°F night by April 26; only one in ten is past it by April 12, and one in ten still has one after May 8. Planting tender crops after May 2 leaves a 30% risk of a frost on them, after May 4 20%, and after May 8 10%. The 12 days between the even-odds date and the one-in-ten date is narrower than at 57% of the 68 Nebraska stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 11 in half of years, as early as September 28 one year in ten, and holds off past October 23 one year in ten. A hard freeze of 28°F follows 9 days later, around October 20; in spring the one-in-ten date for 28°F is May 1, 7 days before the 32°F one. The freeze-free season lasts 168 days in a typical year, longer than at 57% of the 68 Nebraska stations; it reaches 187 days one year in ten and falls short of 148 one year in ten. On average 147 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 May 5, and return around October 3. Severe cold of 16°F or below comes every winter, usually between November 15 and March 20.

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

Freeze probabilities 1991–2020 at David City, NE, 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 68632 →Compare David City with another place →

Weather by month in David City

July is the warmest month at David City, NE, averaging 86°F by day and 64°F at night; January is the coldest at 31°F and 12°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 36% of years.

Warmth for growing adds up to 3,201 growing degree days a year (base 50°F), fewer than at 54% of the 68 Nebraska stations. 34% of them (1,097) have built up by the end of June, and July adds the most, 773. Precipitation totals 30.5 inches a year, most in June (4.9") and least in January (0.8"); May to September bring 63% of it.

Monthly normals 1991–2020 at David City, NE
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan31120.8100%310
Feb36150.9100%262
Mar49261.7100%2328
Apr61363.099%9106
May72494.536%1341
Jun82604.90%0621
Jul86643.10%0773
Aug84624.00%0705
Sep77532.817%<1452
Oct64402.299%6155
Nov48261.4100%2118
Dec35161.2100%300

Monthly normals 1991–2020 at David City, NE (1,610 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, Columbus 3 NE, NE, 18 miles northwest of David City and 160 feet lower, has a last frost 5 days earlier (April 21), a first frost 4 days later (October 15), a season 6 days longer.

Frost dates for 68601 (Columbus) →

When it snows in David City, Nebraska

The first measurable snow (0.1 inch or more) in David City usually arrives around November 11, and the last of the season around March 28. Those are the middle dates across the winters of 1991–2020 at David City, NE, 0.8 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 29 days after the last snow.

Planting calendar for 68632

What to do and when, from the 50% frost dates for David City, Nebraska
WhenWhat to do
February 15 – March 1Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
March 1 – March 15Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 29 – April 12Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 26 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 19Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by September 27Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 11 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 68632 is under a mile from David City, NE, which stands at 1,610 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 68632 in zone 5b, the band where the coldest night of the year averaged -15 to -10°F (-26.1 to -23.3°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Nebraska →

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 5b places in Nebraska