Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 81064 — Pritchett, CO

ZIP code 81064 (Pritchett, Baca County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 24 and the first fall frost October 18.

Where ZIP 81064 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone6b−5 to 0 °F
Coldest night−20.6 to −17.8 °C
Last frostApr 24
First frostOct 18
2012 zone6a

Was 6a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Pritchett, CO…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Pritchett, CO

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 24median — 50% chance of a later frost
Safe for tender plantsMay 6only 10% chance of frost after
First fall frostOctober 18median — 10% chance by Oct 4
Growing season175 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 11 and returns around October 28.

From the NOAA station Kim 10sse, CO — 18 miles away, elevation 5,256 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 81064

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 13 – Mar 27
SpinachSow outdoors · Mar 13 – Apr 3
Broccoli, cabbageStart indoors · Feb 13 – Feb 27
Broccoli, cabbageTransplant · Apr 3 – Apr 17
Onion setsPlant outdoors · Mar 27 – Apr 10
PotatoesPlant outdoors · Apr 3 – Apr 17
LettuceSow outdoors · Mar 27 – Apr 10
Carrots, beetsSow outdoors · Apr 3 – Apr 17
TomatoesStart indoors · Feb 27 – Mar 13
TomatoesTransplant · May 1 – May 15
Peppers, eggplantStart indoors · Feb 13 – Feb 27
Peppers, eggplantTransplant · May 8 – May 22
BeansSow outdoors · May 1 – May 15
Sweet cornSow outdoors · May 1 – May 15
Cucumbers, squashSow outdoors · May 1 – May 15
Fall lettuce, spinachSow outdoors · Aug 23 – Sep 6
GarlicPlant cloves · Oct 4 – Nov 8
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 24) and first fall frost (Oct 18) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 81064 came on Feb 20 — 21 days earlier than the 1991–2020 average (Mar 13).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 6b in Colorado

565 plants native to the lower 48 states, recorded in Colorado, and rated by the USDA to survive −5 °F or colder — the bottom of zone 6b. Each links to its USDA PLANTS profile.

Trees 28

American elm120 ft · blooms early spring · medium shade tolerance · to −46 °Fbalsam poplar80 ft · blooms late spring · high shade tolerance · to −79 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fblack walnut100 ft · blooms late spring · high shade tolerance · to −28 °Fblack willow100 ft · blooms early spring · high shade tolerance · to −58 °Fblue spruce100 ft · blooms late spring · medium shade tolerance · to −38 °F

Shrubs 104

alderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °Falpine laurel1 ft · blooms late spring · low shade tolerance · to −28 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °Fantelope bitterbrush6 ft · blooms early spring · medium shade tolerance · to −36 °FApache plume6 ft · blooms late spring · high shade tolerance · to −23 °F

Wildflowers & perennials 252

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine aster0.3 ft · blooms early summer · medium shade tolerance · to −28 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °FAmerican alpine speedwell1 ft · blooms summer · medium shade tolerance · to −28 °FAmerican bistort1.5 ft · blooms mid spring · high shade tolerance · to −38 °F

Grasses 168

Alaska oniongrass3 ft · blooms mid spring · low shade tolerance · to −33 °Falkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Falkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAlpine Meadow-Foxtail0.5 ft · blooms mid spring · medium shade tolerance · to −33 °Falpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °Fanalogue sedge1.5 ft · blooms late spring · medium shade tolerance · to −38 °F

Vines 4

riverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °Ftrumpet creeper2 ft · blooms summer · high shade tolerance · to −13 °FVirginia creeper1 ft · blooms late spring · medium shade tolerance · to −28 °Fwestern white clematis1 ft · blooms mid summer · medium shade tolerance · to −38 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Pritchett, CO.

Soil in Pritchett, CO

The soil mapped at the center of ZIP 81064 is Vona — loamy sand, somewhat excessively drained.

TextureLoamy sanddrains and warms fast; dries out and needs more feeding
pH7.2neutral; most vegetables like 6.0–7.0
DrainageSomewhat excessively drainednatural drainage class
Organic matter1.25%low — add compost
Hydrologic groupAwater soaks in fast
Farmland classNot prime farmlandUSDA classification

Map unit: Vona soils, warm, 0 to 5 percent slopes, eroded.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 81064; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Pritchett, CO

Summer high89 °Faverage high, July
Winter low21 °Faverage low, January
Hot days33days a year at 90 °F or more
Freezing nights151nights a year at 32 °F or less
Growing degree days3,390base 50 °F — the season’s usable heat
Longest day14 h 44 mindaylight on June 21
Shortest day9 h 36 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation16.1 inper year, rain and melted snow
Snowfall27 inper year; 19 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 50 °F, low 21 °F 50°21° JanFebruary: average high 53 °F, low 24 °F 53°24° FebMarch: average high 60 °F, low 30 °F 60°30° MarApril: average high 67 °F, low 37 °F 67°37° AprMay: average high 76 °F, low 47 °F 76°47° MayJune: average high 85 °F, low 57 °F 85°57° JunJuly: average high 89 °F, low 61 °F 89°61° JulAugust: average high 86 °F, low 59 °F 86°59° AugSeptember: average high 80 °F, low 51 °F 80°51° SepOctober: average high 70 °F, low 39 °F 70°39° OctNovember: average high 58 °F, low 29 °F 58°29° NovDecember: average high 50 °F, low 22 °F 50°22° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″January: 0.36 in precipitation, 4.2 in snowfall 0.4❄4 JanFebruary: 0.36 in precipitation, 2.8 in snowfall 0.4❄3 FebMarch: 0.92 in precipitation, 5 in snowfall 0.9❄5 MarApril: 1.37 in precipitation, 4.2 in snowfall 1.4❄4 AprMay: 1.92 in precipitation, 0.4 in snowfall 1.9 MayJune: 2.05 in precipitation 2.0 JunJuly: 2.80 in precipitation 2.8 JulAugust: 2.89 in precipitation 2.9 AugSeptember: 1.52 in precipitation 1.5 SepOctober: 0.89 in precipitation, 2.1 in snowfall 0.9❄2 OctNovember: 0.48 in precipitation, 3.3 in snowfall 0.5❄3 NovDecember: 0.52 in precipitation, 4.9 in snowfall 0.5❄5 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Kim 10sse, CO (18 mi away); precipitation: Kim 10sse, CO (18 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

2 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

810736b
Springfield, CO · 21 mi
810496a
Kim, CO · 22 mi
739466b
Kenton, OK · 23 mi
810296b
Campo, CO · 29 mi
810876b
Vilas, CO · 34 mi
884196b
Folsom, NM · 37 mi
810846b
Two Buttes, CO · 39 mi
810276a
Branson, CO · 40 mi

Colorado planting zones →

Questions about 81064

What planting zone is ZIP code 81064?

ZIP code 81064 (Pritchett, CO) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in Pritchett, CO?

The median last spring frost (32 °F) near 81064 is April 24; after May 6 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Kim 10sse station.

When is the first frost in Pritchett, CO?

The median first fall frost near 81064 is October 18, giving a median frost-free growing season of 175 days.

When should I plant tomatoes in 81064?

Start tomato seeds indoors around Feb 27 – Mar 13 and set transplants outside around May 1 – May 15, one to three weeks after the median last frost.

How much rain and snow does 81064 get?

About 16.1 inches of precipitation a year and 27 inches of snowfall (NOAA 1991–2020 normals, Kim 10sse station).

How hot do summers get in Pritchett, CO?

The average high peaks at 89 °F in July, with about 33 days a year at 90 °F or more.

What kind of soil does 81064 have?

The USDA soil survey maps Vona at the center of ZIP 81064: loamy sand, somewhat excessively drained, pH about 7.2 (neutral).

Did spring come early in Pritchett, CO in 2026?

Spring leaf-out near 81064 came on Feb 20 in 2026, 21 days earlier than the 1991–2020 average (Mar 13), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Pritchett, CO?

Intermediate onions: the longest day near 81064 is 14 h 44 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 81064 change?

Yes. The 2012 USDA map put 81064 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.