Planting zone for 93664 — Shaver Lake, CA
ZIP code 93664 (Shaver Lake, Fresno County) is in USDA zone 8a: the coldest winter night averages 10 to 15 °F. The median last spring frost is February 23 and the first fall frost December 12.
Where ZIP 93664 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 8b 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 8a means →
Frost forecast — next 7 nights
live from the National Weather ServiceLoading the forecast for Shaver 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 Shaver Lake, CA
A hard freeze (28 °F) usually ends around January 21 and returns around December 27.
From the NOAA station Balch Pwr House, CA — 11 miles away, elevation 1,736 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 93664
Counted from the median last spring frost (Feb 23) and first fall frost (Dec 12) 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 93664 came on Feb 3 — 24 days earlier than the 1991–2020 average (Feb 27).
Feb 272026
Feb 3
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 Shaver Lake, CA
The soil mapped at the center of ZIP 93664 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 93664; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.
Climate in Shaver Lake, CA
Average high and low, by month
Precipitation by month inches
NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Balch Pwr House, CA (11 mi away); precipitation: Balch Pwr House, CA (11 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 93664
What planting zone is ZIP code 93664?
ZIP code 93664 (Shaver Lake, CA) is in USDA hardiness zone 8a on the 2023 map: the coldest night of an average winter reaches 10 to 15 °F (−12.2 to −9.4 °C).
When is the last frost in Shaver Lake, CA?
The median last spring frost (32 °F) near 93664 is February 23; after April 4 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Balch Pwr House station.
When is the first frost in Shaver Lake, CA?
The median first fall frost near 93664 is December 12, giving a median frost-free growing season of 294 days.
When should I plant tomatoes in 93664?
Start tomato seeds indoors around Dec 29 – Jan 12 and set transplants outside around Mar 2 – Mar 16, one to three weeks after the median last frost.
How much rain and snow does 93664 get?
About 28.6 inches of precipitation a year (NOAA 1991–2020 normals, Balch Pwr House station).
How hot do summers get in Shaver Lake, CA?
The average high peaks at 93 °F in July, with about 90 days a year at 90 °F or more.
What kind of soil does 93664 have?
The USDA soil survey maps Shaver family at the center of ZIP 93664: coarse sandy loam, well drained, pH about 6.3 (slightly acidic).
Did spring come early in Shaver Lake, CA in 2026?
Spring leaf-out near 93664 came on Feb 3 in 2026, 24 days earlier than the 1991–2020 average (Feb 27), according to the USA National Phenology Network Spring Index.
What kind of onions grow in Shaver Lake, CA?
Intermediate onions: the longest day near 93664 is 14 h 43 min, so day-neutral types bulb best; long-day varieties may not bulb fully.
Did the zone for 93664 change?
Yes. The 2012 USDA map put 93664 in zone 8b; the 2023 map puts it in zone 8a. The newer map uses 1991–2020 data and more weather stations.