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USDA Hardiness Zone 7a

Frost Dates for 81526 — Palisade, Colorado

NOAA 1991–2020 normals from Palisade, CO (4,751 ft), 1 miles northeast.

Updated

In Palisade, the last spring frost (32°F) is around April 17 in half of years and has passed by May 3 in nine years out of ten. The first fall frost comes around October 26, as early as October 12 one year in ten, leaving a typical freeze-free season of 190 days (NOAA, Palisade, CO).

Last spring frost
April 17

50% probability

First fall frost
October 26

50% probability

Growing season
190 days

freeze-free, 50%

Hardiness zone
7a

0 to 5°F (-17.8 to -15.0°C) coldest night

First snow
December 1

median, 1991–2020

Last snow
March 1

median, 1991–2020

Winters with snow
100%

22 of 22 observed

Snow per year
12.9"

NOAA normal

Frost risk by date in Palisade

Half of springs at Palisade, CO see their last 32°F night by April 17; only one in ten is past it by March 27, and one in ten still has one after May 3. Planting tender crops after April 24 leaves a 30% risk of a frost on them, after April 29 20%, and after May 3 10%. The 16 days between the even-odds date and the one-in-ten date is wider than at 75% of the 110 Colorado stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 26 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 10 days later, around November 5; in spring the one-in-ten date for 28°F is April 20, 13 days before the 32°F one. The freeze-free season lasts 190 days in a typical year, the longest of the 110 Colorado stations; it reaches 215 days one year in ten and falls short of 167 one year in ten. On average 119 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 13 days longer, to about April 30, and return around October 16. Severe cold of 16°F or below comes every winter, usually between December 8 and February 9.

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

Freeze probabilities 1991–2020 at Palisade, CO, 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 81526 →Compare Palisade with another place →

Weather by month in Palisade

July is the warmest month at Palisade, CO, averaging 93°F by day and 65°F at night; January is the coldest at 40°F and 21°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 83% of years and May still brings one in 16% of years.

Warmth for growing adds up to 3,732 growing degree days a year (base 50°F), more than at 97% of the 110 Colorado stations. 35% of them (1,289) have built up by the end of June, and July adds the most, 890. Precipitation totals 10.7 inches a year, most in September (1.4") and least in January (0.6"); May to September bring 44% of it.

Monthly normals 1991–2020 at Palisade, CO
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan40210.6100%300
Feb47260.7100%222
Mar58350.9100%1249
Apr66401.183%4151
May76501.116%<1401
Jun87590.60%0687
Jul93650.70%0890
Aug90630.90%0814
Sep81551.40%0536
Oct67421.370%3186
Nov53310.8100%1818
Dec41220.6100%290

Monthly normals 1991–2020 at Palisade, CO (4,751 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, Grand Junction 6ESE, CO, 7 miles southwest of Palisade, has a last frost 6 days later (April 23), a first frost 6 days earlier (October 20), a season 11 days shorter.

Frost dates for 81520 (Clifton) →

When it snows in Palisade, Colorado

The first measurable snow (0.1 inch or more) in Palisade usually arrives around December 1, and the last of the season around March 1. Those are the middle dates across the winters of 1991–2020 at Palisade, CO, 1.2 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 47 days after the last snow.

Planting calendar for 81526

What to do and when, from the 50% frost dates for Palisade, Colorado
WhenWhat to do
February 6 – February 20Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 20 – March 6Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 20 – April 3Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 17 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 3Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 12Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 26 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 81526 is 1 mile from Palisade, CO, which stands at 4,751 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 81526 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Colorado →

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 7a places in Colorado