Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 96058 — Macdoel, CA

ZIP code 96058 (Macdoel, Siskiyou County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is June 6 and the first fall frost September 28.

Where ZIP 96058 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 frostJun 6

First frostSep 28

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 Macdoel, 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 Macdoel, CA

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 22only 10% chance of frost after

First fall frostSeptember 28median — 10% chance by Sep 8

Growing season113 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 16 and returns around October 15.

From the NOAA station Lava Beds Nat Mon, CA — 21 miles away, elevation 4,771 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 96058

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 · Aug 3 – Aug 17

GarlicPlant cloves · Sep 14 – Oct 19

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Jun 6) and first fall frost (Sep 28) 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 96058 came on Mar 16 — 21 days earlier than the 1991–2020 average (Apr 6).

average
Apr 62026
Mar 16

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 Macdoel, CA

The soil mapped at the center of ZIP 96058 is Vipont family — cobbly loam, well drained.

TextureCobbly loama good balance for most vegetables

pH6.5neutral; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter2%moderate

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Vipont-Hades families association, 15 to 50 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 96058; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Macdoel, CA

Summer high86 °Faverage high, July

Winter low22 °Faverage low, December

Hot days24days a year at 90 °F or more

Freezing nights164nights a year at 32 °F or less

Growing degree days2,151base 50 °F — the season’s usable heat

Longest day15 h 13 mindaylight on June 21

Shortest day9 h 09 mindaylight on December 21

Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)

Precipitation13.3 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Lava Beds Nat Mon, CA (21 mi away); precipitation: Dorris 0.2 Sw, CA (16 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.

Klamath Falls, OR · 31 mi

California planting zones →

Questions about 96058

What planting zone is ZIP code 96058?

ZIP code 96058 (Macdoel, 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 Macdoel, CA?

The median last spring frost (32 °F) near 96058 is June 6; after June 22 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Lava Beds Nat Mon station.

When is the first frost in Macdoel, CA?

The median first fall frost near 96058 is September 28, giving a median frost-free growing season of 113 days.

When should I plant tomatoes in 96058?

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 96058 get?

About 13.3 inches of precipitation a year (NOAA 1991–2020 normals, Dorris 0.2 Sw station).

How hot do summers get in Macdoel, CA?

The average high peaks at 86 °F in July, with about 24 days a year at 90 °F or more.

What kind of soil does 96058 have?

The USDA soil survey maps Vipont family at the center of ZIP 96058: cobbly loam, well drained, pH about 6.5 (neutral).

Did spring come early in Macdoel, CA in 2026?

Spring leaf-out near 96058 came on Mar 16 in 2026, 21 days earlier than the 1991–2020 average (Apr 6), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Macdoel, CA?

Long-day onions: the longest day near 96058 is 15 h 13 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).