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

Planting zone for 93529 — June Lake, CA

ZIP code 93529 (June Lake, Mono County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is May 23 and the first fall frost October 9.

Where ZIP 93529 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.

Zone6a−10 to −5 °F
Coldest night−23.3 to −20.6 °C
Last frostMay 23
First frostOct 9
2012 zone6a

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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for June Lake, 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 June Lake, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 23median — 50% chance of a later frost
Safe for tender plantsJune 9only 10% chance of frost after
First fall frostOctober 9median — 10% chance by Sep 27
Growing season139 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 2 and returns around October 21.

From the NOAA station Lee Vining, CA — 13 miles away, elevation 6,798 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 93529

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 11 – Apr 25
SpinachSow outdoors · Apr 11 – May 2
Broccoli, cabbageStart indoors · Mar 14 – Mar 28
Broccoli, cabbageTransplant · May 2 – May 16
Onion setsPlant outdoors · Apr 25 – May 9
PotatoesPlant outdoors · May 2 – May 16
LettuceSow outdoors · Apr 25 – May 9
Carrots, beetsSow outdoors · May 2 – May 16
TomatoesStart indoors · Mar 28 – Apr 11
TomatoesTransplant · May 30 – Jun 13
Peppers, eggplantStart indoors · Mar 14 – Mar 28
Peppers, eggplantTransplant · Jun 6 – Jun 20
BeansSow outdoors · May 30 – Jun 13
Sweet cornSow outdoors · May 30 – Jun 13
Cucumbers, squashSow outdoors · May 30 – Jun 13
Fall lettuce, spinachSow outdoors · Aug 14 – Aug 28
GarlicPlant cloves · Sep 25 – Oct 30
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 23) and first fall frost (Oct 9) 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 93529 came on Apr 26 — 38 days earlier than the 1991–2020 average (Jun 3).

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 June Lake, CA

The soil mapped at the center of ZIP 93529 is Typic Cryorthents — cobbly sandy loam, well drained.

TextureCobbly sandy loamdrains and warms fast; dries out and needs more feeding
pH5.0strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Rock outcrop-Typic Cryorthents complex, 40 to 85 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 93529; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in June Lake, CA

Summer high72 °Faverage high, July
Winter low12 °Faverage low, February
Hot days0days a year at 90 °F or more
Freezing nights273nights a year at 32 °F or less
Growing degree days390base 50 °F — the season’s usable heat
Longest day14 h 47 mindaylight on June 21
Shortest day9 h 33 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation18.8 inper year, rain and melted snow

Average high and low, by month

0°10°20°30°40°50°60°70°80°32 °FJanuary: average high 41 °F, low 13 °F 41°13° JanFebruary: average high 39 °F, low 12 °F 39°12° FebMarch: average high 42 °F, low 15 °F 42°15° MarApril: average high 45 °F, low 22 °F 45°22° AprMay: average high 54 °F, low 27 °F 54°27° MayJune: average high 65 °F, low 33 °F 65°33° JunJuly: average high 72 °F, low 39 °F 72°39° JulAugust: average high 70 °F, low 37 °F 70°37° AugSeptember: average high 65 °F, low 32 °F 65°32° SepOctober: average high 57 °F, low 26 °F 57°26° OctNovember: average high 47 °F, low 20 °F 47°20° NovDecember: average high 40 °F, low 12 °F 40°12° Dec

Precipitation by month inches

0″1″2″3″4″January: 3.14 in precipitation 3.1 JanFebruary: 3.58 in precipitation 3.6 FebMarch: 2.84 in precipitation 2.8 MarApril: 1.13 in precipitation 1.1 AprMay: 0.88 in precipitation 0.9 MayJune: 0.42 in precipitation 0.4 JunJuly: 0.58 in precipitation 0.6 JulAugust: 0.60 in precipitation 0.6 AugSeptember: 0.54 in precipitation 0.5 SepOctober: 0.90 in precipitation 0.9 OctNovember: 1.66 in precipitation 1.7 NovDecember: 2.50 in precipitation 2.5 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Tuolumne Meadows Rs, CA (11 mi away); precipitation: Gem Lake, CA (3 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.

953897a
Yosemite National Park, CA · 13 mi
935416b
Lee Vining, CA · 18 mi
935466a
Mammoth Lakes, CA · 25 mi
936426a
Mono Hot Springs, CA · 33 mi
936449a
Oakhurst, CA · 33 mi
936238a
Fish Camp, CA · 34 mi
935176a
Bridgeport, CA · 35 mi
936048b
Bass Lake, CA · 35 mi

California planting zones →

Questions about 93529

What planting zone is ZIP code 93529?

ZIP code 93529 (June Lake, CA) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in June Lake, CA?

The median last spring frost (32 °F) near 93529 is May 23; after June 9 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Lee Vining station.

When is the first frost in June Lake, CA?

The median first fall frost near 93529 is October 9, giving a median frost-free growing season of 139 days.

When should I plant tomatoes in 93529?

Start tomato seeds indoors around Mar 28 – Apr 11 and set transplants outside around May 30 – Jun 13, one to three weeks after the median last frost.

How much rain and snow does 93529 get?

About 18.8 inches of precipitation a year (NOAA 1991–2020 normals, Gem Lake station).

How hot do summers get in June Lake, CA?

The average high peaks at 72 °F in July, with about 0 days a year at 90 °F or more.

What kind of soil does 93529 have?

The USDA soil survey maps Typic Cryorthents at the center of ZIP 93529: cobbly sandy loam, well drained, pH about 5.0 (strongly acidic).

Did spring come early in June Lake, CA in 2026?

Spring leaf-out near 93529 came on Apr 26 in 2026, 38 days earlier than the 1991–2020 average (Jun 3), according to the USA National Phenology Network Spring Index.

What kind of onions grow in June Lake, CA?

Intermediate onions: the longest day near 93529 is 14 h 47 min, so day-neutral types bulb best; long-day varieties may not bulb fully.