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

Planting zone for 80423 — Bond, CO

ZIP code 80423 (Bond, Eagle County) is in USDA zone 5b: the coldest winter night averages −15 to −10 °F. The median last spring frost is June 6 and the first fall frost September 14.

Where ZIP 80423 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.

Zone5b−15 to −10 °F
Coldest night−26.1 to −23.3 °C
Last frostJun 6
First frostSep 14
2012 zone5a

Was 5a 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 5b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Bond, 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 Bond, CO

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostJune 6median — 50% chance of a later frost
Safe for tender plantsJune 23only 10% chance of frost after
First fall frostSeptember 14median — 10% chance by Aug 31
Growing season98 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 22 and returns around September 25.

From the NOAA station Green Mt Dam, CO — 12 miles away, elevation 7,740 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 80423

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 25 – May 9
SpinachSow outdoors · Apr 25 – May 16
Broccoli, cabbageStart indoors · Mar 28 – Apr 11
Broccoli, cabbageTransplant · May 16 – May 30
Onion setsPlant outdoors · May 9 – May 23
PotatoesPlant outdoors · May 16 – May 30
LettuceSow outdoors · May 9 – May 23
Carrots, beetsSow outdoors · May 16 – May 30
TomatoesStart indoors · Apr 11 – Apr 25
TomatoesTransplant · Jun 13 – Jun 27
Peppers, eggplantStart indoors · Mar 28 – Apr 11
Peppers, eggplantTransplant · Jun 20 – Jul 4
BeansSow outdoors · Jun 13 – Jun 27
Sweet cornSow outdoors · Jun 13 – Jun 27
Cucumbers, squashSow outdoors · Jun 13 – Jun 27
Fall lettuce, spinachSow outdoors · Jul 20 – Aug 3
GarlicPlant cloves · Aug 31 – Oct 5
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Jun 6) and first fall frost (Sep 14) 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 80423 came on Apr 17 — 24 days earlier than the 1991–2020 average (May 11).

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).

Soil in Bond, CO

The soil mapped at the center of ZIP 80423 is Gateview family — slightly decomposed plant material, well drained.

TextureSlightly decomposed plant materialtop layer
pH5.0strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter75%high
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Gateview-Sawpit-Eyre families complex, 40 to 65 percent slopes.

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 80423; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Bond, CO

Summer high79 °Faverage high, July
Winter low4 °Faverage low, January
Hot days1days a year at 90 °F or more
Freezing nights235nights a year at 32 °F or less
Growing degree days1,032base 50 °F — the season’s usable heat
Longest day15 h 00 mindaylight on June 21
Shortest day9 h 20 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation35.9 inper year, rain and melted snow

Average high and low, by month

−10°0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 28 °F, low 4 °F 28°4° JanFebruary: average high 33 °F, low 7 °F 33°7° FebMarch: average high 42 °F, low 15 °F 42°15° MarApril: average high 51 °F, low 24 °F 51°24° AprMay: average high 61 °F, low 32 °F 61°32° MayJune: average high 74 °F, low 39 °F 74°39° JunJuly: average high 79 °F, low 44 °F 79°44° JulAugust: average high 76 °F, low 43 °F 76°43° AugSeptember: average high 69 °F, low 36 °F 69°36° SepOctober: average high 55 °F, low 26 °F 55°26° OctNovember: average high 40 °F, low 16 °F 40°16° NovDecember: average high 29 °F, low 6 °F 29°6° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.08 in precipitation 3.1 JanFebruary: 3.58 in precipitation 3.6 FebMarch: 3.32 in precipitation 3.3 MarApril: 4.86 in precipitation 4.9 AprMay: 3.54 in precipitation 3.5 MayJune: 1.61 in precipitation 1.6 JunJuly: 2.18 in precipitation 2.2 JulAugust: 1.86 in precipitation 1.9 AugSeptember: 2.20 in precipitation 2.2 SepOctober: 3.17 in precipitation 3.2 OctNovember: 3.42 in precipitation 3.4 NovDecember: 3.12 in precipitation 3.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Green Mt Dam, CO (12 mi away); precipitation: Elliot Ridge, CO (7 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

816556a
Wolcott, CO · 9 mi
804635b
Mc Coy, CO · 14 mi
816585a
Vail, CO · 16 mi
816325b
Edwards, CO · 16 mi
816206a
Avon, CO · 16 mi
804985a
Silverthorne, CO · 17 mi
816575b
Vail, CO · 18 mi
804795a
Toponas, CO · 19 mi

Colorado planting zones →

Questions about 80423

What planting zone is ZIP code 80423?

ZIP code 80423 (Bond, CO) is in USDA hardiness zone 5b on the 2023 map: the coldest night of an average winter reaches −15 to −10 °F (−26.1 to −23.3 °C).

When is the last frost in Bond, CO?

The median last spring frost (32 °F) near 80423 is June 6; after June 23 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Green Mt Dam station.

When is the first frost in Bond, CO?

The median first fall frost near 80423 is September 14, giving a median frost-free growing season of 98 days.

When should I plant tomatoes in 80423?

Start tomato seeds indoors around Apr 11 – Apr 25 and set transplants outside around Jun 13 – Jun 27, one to three weeks after the median last frost.

How much rain and snow does 80423 get?

About 35.9 inches of precipitation a year (NOAA 1991–2020 normals, Elliot Ridge station).

How hot do summers get in Bond, CO?

The average high peaks at 79 °F in July, with about 1 days a year at 90 °F or more.

What kind of soil does 80423 have?

The USDA soil survey maps Gateview family at the center of ZIP 80423: slightly decomposed plant material, well drained, pH about 5.0 (strongly acidic).

Did spring come early in Bond, CO in 2026?

Spring leaf-out near 80423 came on Apr 17 in 2026, 24 days earlier than the 1991–2020 average (May 11), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Bond, CO?

Intermediate onions: the longest day near 80423 is 15 h 00 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 80423 change?

Yes. The 2012 USDA map put 80423 in zone 5a; the 2023 map puts it in zone 5b. The newer map uses 1991–2020 data and more weather stations.