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

Planting zone for 95075 — Tres Pinos, CA

ZIP code 95075 (Tres Pinos, San Benito County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is April 14 and the first fall frost November 2.

Where ZIP 95075 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.

Zone9a20 to 25 °F
Coldest night−6.7 to −3.9 °C
Last frostApr 14
First frostNov 2
2012 zone9a

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 9a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Tres Pinos, 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 Tres Pinos, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 14median — 50% chance of a later frost
Safe for tender plantsMay 9only 10% chance of frost after
First fall frostNovember 2median — 10% chance by Oct 16
Growing season201 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 28 and returns around November 22.

From the NOAA station Paicines 4 W, CA — 11 miles away, elevation 906 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 95075

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 3 – Mar 17
SpinachSow outdoors · Mar 3 – Mar 24
Broccoli, cabbageStart indoors · Feb 3 – Feb 17
Broccoli, cabbageTransplant · Mar 24 – Apr 7
Onion setsPlant outdoors · Mar 17 – Mar 31
PotatoesPlant outdoors · Mar 24 – Apr 7
LettuceSow outdoors · Mar 17 – Mar 31
Carrots, beetsSow outdoors · Mar 24 – Apr 7
TomatoesStart indoors · Feb 17 – Mar 3
TomatoesTransplant · Apr 21 – May 5
Peppers, eggplantStart indoors · Feb 3 – Feb 17
Peppers, eggplantTransplant · Apr 28 – May 12
BeansSow outdoors · Apr 21 – May 5
Sweet cornSow outdoors · Apr 21 – May 5
Cucumbers, squashSow outdoors · Apr 21 – May 5
Fall lettuce, spinachSow outdoors · Sep 7 – Sep 21
GarlicPlant cloves · Oct 19 – Nov 23
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 14) and first fall frost (Nov 2) 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 95075 came on Jan 28 — about the same time as the 1991–2020 average (Jan 30).

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 Tres Pinos, CA

The soil mapped at the center of ZIP 95075 is Cibo — stony clay, well drained.

TextureStony clayholds water and nutrients; slow to drain and warm up
pH7.7slightly alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.5%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Cibo stony clay, 15 to 50 percent slopes, eroded.

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 95075; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Tres Pinos, CA

Summer high86 °Faverage high, July
Winter low33 °Faverage low, December
Hot days36days a year at 90 °F or more
Freezing nights65nights a year at 32 °F or less
Growing degree days2,884base 50 °F — the season’s usable heat
Longest day14 h 41 mindaylight on June 21
Shortest day9 h 38 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation14.3 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 59 °F, low 34 °F 59°34° JanFebruary: average high 61 °F, low 36 °F 61°36° FebMarch: average high 64 °F, low 37 °F 64°37° MarApril: average high 70 °F, low 39 °F 70°39° AprMay: average high 76 °F, low 43 °F 76°43° MayJune: average high 83 °F, low 46 °F 83°46° JunJuly: average high 86 °F, low 49 °F 86°49° JulAugust: average high 86 °F, low 49 °F 86°49° AugSeptember: average high 83 °F, low 47 °F 83°47° SepOctober: average high 76 °F, low 40 °F 76°40° OctNovember: average high 66 °F, low 36 °F 66°36° NovDecember: average high 58 °F, low 33 °F 58°33° Dec

Precipitation by month inches

0″1″2″3″4″January: 3.04 in precipitation 3.0 JanFebruary: 2.56 in precipitation 2.6 FebMarch: 2.40 in precipitation 2.4 MarApril: 1.10 in precipitation 1.1 AprMay: 0.54 in precipitation 0.5 MayJune: 0.11 in precipitation 0.1 JunJuly: 0.01 in precipitation 0.0 JulAugust: 0.02 in precipitation 0.0 AugSeptember: 0.06 in precipitation 0.1 SepOctober: 0.53 in precipitation 0.5 OctNovember: 1.34 in precipitation 1.3 NovDecember: 2.63 in precipitation 2.6 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Paicines 4 W, CA (11 mi away); precipitation: Hollister 2.1 Ese, CA (10 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

950239b
Hollister, CA · 11 mi
950249b
Hollister, CA · 12 mi
950459b
San Juan Bautista, CA · 18 mi
939259b
Chualar, CA · 18 mi
939269b
Gonzales, CA · 22 mi
950439a
Paicines, CA · 22 mi
936359a
Los Banos, CA · 23 mi
939059b
Salinas, CA · 24 mi

California planting zones →

Questions about 95075

What planting zone is ZIP code 95075?

ZIP code 95075 (Tres Pinos, CA) is in USDA hardiness zone 9a on the 2023 map: the coldest night of an average winter reaches 20 to 25 °F (−6.7 to −3.9 °C).

When is the last frost in Tres Pinos, CA?

The median last spring frost (32 °F) near 95075 is April 14; after May 9 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Paicines 4 W station.

When is the first frost in Tres Pinos, CA?

The median first fall frost near 95075 is November 2, giving a median frost-free growing season of 201 days.

When should I plant tomatoes in 95075?

Start tomato seeds indoors around Feb 17 – Mar 3 and set transplants outside around Apr 21 – May 5, one to three weeks after the median last frost.

How much rain and snow does 95075 get?

About 14.3 inches of precipitation a year (NOAA 1991–2020 normals, Hollister 2.1 Ese station).

How hot do summers get in Tres Pinos, CA?

The average high peaks at 86 °F in July, with about 36 days a year at 90 °F or more.

What kind of soil does 95075 have?

The USDA soil survey maps Cibo at the center of ZIP 95075: stony clay, well drained, pH about 7.7 (slightly alkaline).

Did spring come early in Tres Pinos, CA in 2026?

Spring leaf-out near 95075 came on Jan 28 in 2026, about the same as the 1991–2020 average (Jan 30), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Tres Pinos, CA?

Intermediate onions: the longest day near 95075 is 14 h 41 min, so day-neutral types bulb best; long-day varieties may not bulb fully.