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

Planting zone for 96107 — Coleville, CA

ZIP code 96107 (Coleville, Mono County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is May 12 and the first fall frost October 6.

Where ZIP 96107 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 frostMay 12
First frostOct 6
2012 zone6b

Same zone as on the 2012 map. 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 Coleville, CA…

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 Coleville, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 12median — 50% chance of a later frost
Safe for tender plantsJune 7only 10% chance of frost after
First fall frostOctober 6median — 10% chance by Sep 20
Growing season145 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 24 and returns around October 18.

From the NOAA station Topaz Lake, NV — 23 miles away, elevation 5,292 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 96107

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 31 – Apr 14
SpinachSow outdoors · Mar 31 – Apr 21
Broccoli, cabbageStart indoors · Mar 3 – Mar 17
Broccoli, cabbageTransplant · Apr 21 – May 5
Onion setsPlant outdoors · Apr 14 – Apr 28
PotatoesPlant outdoors · Apr 21 – May 5
LettuceSow outdoors · Apr 14 – Apr 28
Carrots, beetsSow outdoors · Apr 21 – May 5
TomatoesStart indoors · Mar 17 – Mar 31
TomatoesTransplant · May 19 – Jun 2
Peppers, eggplantStart indoors · Mar 3 – Mar 17
Peppers, eggplantTransplant · May 26 – Jun 9
BeansSow outdoors · May 19 – Jun 2
Sweet cornSow outdoors · May 19 – Jun 2
Cucumbers, squashSow outdoors · May 19 – Jun 2
Fall lettuce, spinachSow outdoors · Aug 11 – Aug 25
GarlicPlant cloves · Sep 22 – Oct 27
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 12) and first fall frost (Oct 6) 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 96107 came on Apr 22 — 26 days earlier than the 1991–2020 average (May 18).

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 Coleville, CA

The soil mapped at the center of ZIP 96107 is Jobsis — very gravelly loamy coarse sand, somewhat excessively drained.

TextureVery gravelly loamy coarse sanddrains and warms fast; dries out and needs more feeding
pH5.0strongly acidic; most vegetables like 6.0–7.0
DrainageSomewhat excessively drainednatural drainage class
Organic matter2%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Jobsis-Whittell-Rock outcrop complex, 8 to 30 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 96107; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Coleville, CA

Summer high85 °Faverage high, July
Winter low10 °Faverage low, January
Hot days8days a year at 90 °F or more
Freezing nights243nights a year at 32 °F or less
Growing degree days1,372base 50 °F — the season’s usable heat
Longest day14 h 51 mindaylight on June 21
Shortest day9 h 29 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation25.6 inper year, rain and melted snow

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 43 °F, low 10 °F 43°10° JanFebruary: average high 45 °F, low 13 °F 45°13° FebMarch: average high 52 °F, low 20 °F 52°20° MarApril: average high 59 °F, low 25 °F 59°25° AprMay: average high 67 °F, low 32 °F 67°32° MayJune: average high 77 °F, low 39 °F 77°39° JunJuly: average high 85 °F, low 43 °F 85°43° JulAugust: average high 84 °F, low 41 °F 84°41° AugSeptember: average high 78 °F, low 34 °F 78°34° SepOctober: average high 67 °F, low 24 °F 67°24° OctNovember: average high 55 °F, low 17 °F 55°17° NovDecember: average high 45 °F, low 12 °F 45°12° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 4.14 in precipitation 4.1 JanFebruary: 4.38 in precipitation 4.4 FebMarch: 3.30 in precipitation 3.3 MarApril: 1.98 in precipitation 2.0 AprMay: 1.41 in precipitation 1.4 MayJune: 0.65 in precipitation 0.7 JunJuly: 0.66 in precipitation 0.7 JulAugust: 0.89 in precipitation 0.9 AugSeptember: 0.56 in precipitation 0.6 SepOctober: 1.34 in precipitation 1.3 OctNovember: 2.50 in precipitation 2.5 NovDecember: 3.76 in precipitation 3.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Bridgeport, CA (20 mi away); precipitation: Summit Meadow, CA (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

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

952236b
Arnold, CA · 15 mi
961337a
Topaz, CA · 15 mi
953646b
Pinecrest, CA · 17 mi
935176a
Bridgeport, CA · 17 mi
894446b
Wellington, NV · 25 mi
953757b
Strawberry, CA · 26 mi
894107a
Gardnerville, NV · 26 mi
961206b
Markleeville, CA · 29 mi

California planting zones →

Questions about 96107

What planting zone is ZIP code 96107?

ZIP code 96107 (Coleville, CA) 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 Coleville, CA?

The median last spring frost (32 °F) near 96107 is May 12; after June 7 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Topaz Lake station.

When is the first frost in Coleville, CA?

The median first fall frost near 96107 is October 6, giving a median frost-free growing season of 145 days.

When should I plant tomatoes in 96107?

Start tomato seeds indoors around Mar 17 – Mar 31 and set transplants outside around May 19 – Jun 2, one to three weeks after the median last frost.

How much rain and snow does 96107 get?

About 25.6 inches of precipitation a year (NOAA 1991–2020 normals, Summit Meadow station).

How hot do summers get in Coleville, CA?

The average high peaks at 85 °F in July, with about 8 days a year at 90 °F or more.

What kind of soil does 96107 have?

The USDA soil survey maps Jobsis at the center of ZIP 96107: very gravelly loamy coarse sand, somewhat excessively drained, pH about 5.0 (strongly acidic).

Did spring come early in Coleville, CA in 2026?

Spring leaf-out near 96107 came on Apr 22 in 2026, 26 days earlier than the 1991–2020 average (May 18), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Coleville, CA?

Intermediate onions: the longest day near 96107 is 14 h 51 min, so day-neutral types bulb best; long-day varieties may not bulb fully.