Planting zone for 93605 — Big Creek, CA
ZIP code 93605 (Big Creek, Fresno County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is June 1 and the first fall frost October 6.
Where ZIP 93605 is
Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoomNot 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.
Was 8a 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 7b means →
Frost forecast — next 7 nights
live from the National Weather ServiceLoading the forecast for Big Creek, 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 Big Creek, CA
A hard freeze (28 °F) usually ends around May 12 and returns around October 25.
From the NOAA station Huntington Lake, CA — 4 miles away, elevation 7,021 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 93605
Counted from the median last spring frost (Jun 1) 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 93605 came on Feb 14 — 36 days earlier than the 1991–2020 average (Mar 22).
Mar 222026
Feb 14
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 Big Creek, CA
The soil mapped at the center of ZIP 93605 is Shaver family — coarse sandy loam, well drained.
Map unit: Shaver family, 35 to 65 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 93605; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.
Climate in Big Creek, CA
Average high and low, by month
Precipitation by month inches
NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Huntington Lake, CA (4 mi away); precipitation: Huntington Lake, CA (4 mi away). Daylight is calculated from latitude.
Nearby ZIP codes
8 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.
Questions about 93605
What planting zone is ZIP code 93605?
ZIP code 93605 (Big Creek, CA) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).
When is the last frost in Big Creek, CA?
The median last spring frost (32 °F) near 93605 is June 1; after June 18 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Huntington Lake station.
When is the first frost in Big Creek, CA?
The median first fall frost near 93605 is October 6, giving a median frost-free growing season of 129 days.
When should I plant tomatoes in 93605?
Start tomato seeds indoors around Apr 6 – Apr 20 and set transplants outside around Jun 8 – Jun 22, one to three weeks after the median last frost.
How much rain and snow does 93605 get?
About 44.4 inches of precipitation a year (NOAA 1991–2020 normals, Huntington Lake station).
How hot do summers get in Big Creek, CA?
The average high peaks at 74 °F in July, with about 0 days a year at 90 °F or more.
What kind of soil does 93605 have?
The USDA soil survey maps Shaver family at the center of ZIP 93605: coarse sandy loam, well drained, pH about 6.3 (slightly acidic).
Did spring come early in Big Creek, CA in 2026?
Spring leaf-out near 93605 came on Feb 14 in 2026, 36 days earlier than the 1991–2020 average (Mar 22), according to the USA National Phenology Network Spring Index.
What kind of onions grow in Big Creek, CA?
Intermediate onions: the longest day near 93605 is 14 h 43 min, so day-neutral types bulb best; long-day varieties may not bulb fully.
Did the zone for 93605 change?
Yes. The 2012 USDA map put 93605 in zone 8a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.