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

Planting zone for 95527 — Burnt Ranch, CA

ZIP code 95527 (Burnt Ranch, Trinity County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is April 16 and the first fall frost October 31.

Where ZIP 95527 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.

Zone8b15 to 20 °F

Coldest night−9.4 to −6.7 °C

Last frostApr 16

First frostOct 31

2012 zone9a

Was 9a on the 2012 map — half a zone colder now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Burnt Ranch, 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 Burnt Ranch, CA

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostApril 16median — 50% chance of a later frost

Safe for tender plantsMay 3only 10% chance of frost after

First fall frostOctober 31median — 10% chance by Oct 13

Growing season197 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 17 and returns around November 19.

From the NOAA station Big Bar 4 E, CA — 18 miles away, elevation 1,253 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 95527

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 5 – Mar 19

SpinachSow outdoors · Mar 5 – Mar 26

Broccoli, cabbageStart indoors · Feb 5 – Feb 19

Broccoli, cabbageTransplant · Mar 26 – Apr 9

Onion setsPlant outdoors · Mar 19 – Apr 2

PotatoesPlant outdoors · Mar 26 – Apr 9

LettuceSow outdoors · Mar 19 – Apr 2

Carrots, beetsSow outdoors · Mar 26 – Apr 9

TomatoesStart indoors · Feb 19 – Mar 5

TomatoesTransplant · Apr 23 – May 7

Peppers, eggplantStart indoors · Feb 5 – Feb 19

Peppers, eggplantTransplant · Apr 30 – May 14

BeansSow outdoors · Apr 23 – May 7

Sweet cornSow outdoors · Apr 23 – May 7

Cucumbers, squashSow outdoors · Apr 23 – May 7

Fall lettuce, spinachSow outdoors · Sep 5 – Sep 19

GarlicPlant cloves · Oct 17 – Nov 21

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 16) and first fall frost (Oct 31) 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 95527 came on Feb 6 — 22 days earlier than the 1991–2020 average (Feb 28).

average
Feb 282026
Feb 6

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 Burnt Ranch, CA

The soil mapped at the center of ZIP 95527 is Chawanakee family — gravelly sandy loam, somewhat excessively drained.

TextureGravelly sandy loamdrains 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: Chawanakee family-Rock outcrop complex, 60 to 80 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 95527; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Burnt Ranch, CA

Summer high97 °Faverage high, July

Winter low34 °Faverage low, January

Hot days90days a year at 90 °F or more

Freezing nights59nights a year at 32 °F or less

Growing degree days3,431base 50 °F — the season’s usable heat

Longest day15 h 07 mindaylight on June 21

Shortest day9 h 14 mindaylight on December 21

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

Precipitation49.9 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: Big Bar 4 E, CA (18 mi away); precipitation: Willow Creek 4.5 Nne, CA (11 mi away). 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.

Willow Creek, CA · 13 mi

960318b

Forks Of Salmon, CA · 19 mi

955259a

Blue Lake, CA · 21 mi

960488b

Junction City, CA · 22 mi

California planting zones →

Questions about 95527

What planting zone is ZIP code 95527?

ZIP code 95527 (Burnt Ranch, CA) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Burnt Ranch, CA?

The median last spring frost (32 °F) near 95527 is April 16; after May 3 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Big Bar 4 E station.

When is the first frost in Burnt Ranch, CA?

The median first fall frost near 95527 is October 31, giving a median frost-free growing season of 197 days.

When should I plant tomatoes in 95527?

Start tomato seeds indoors around Feb 19 – Mar 5 and set transplants outside around Apr 23 – May 7, one to three weeks after the median last frost.

How much rain and snow does 95527 get?

About 49.9 inches of precipitation a year (NOAA 1991–2020 normals, Willow Creek 4.5 Nne station).

How hot do summers get in Burnt Ranch, CA?

The average high peaks at 97 °F in July, with about 90 days a year at 90 °F or more.

What kind of soil does 95527 have?

The USDA soil survey maps Chawanakee family at the center of ZIP 95527: gravelly sandy loam, somewhat excessively drained, pH about 5.0 (strongly acidic).

Did spring come early in Burnt Ranch, CA in 2026?

Spring leaf-out near 95527 came on Feb 6 in 2026, 22 days earlier than the 1991–2020 average (Feb 28), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Burnt Ranch, CA?

Long-day onions: the longest day near 95527 is 15 h 07 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 95527 change?

Yes. The 2012 USDA map put 95527 in zone 9a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.