Sierraville, CA frost dates
Last spring frostAny monthno frost-free season
Freezing nights273 / yrat or below 32°F
Hardiness zone6bZone 6b
Gardening where frost is possible all year
The weather station nearest Sierraville, CA records freezing temperatures in every month often enough that NOAA cannot define a frost-free season. Gardening is still possible — it just means planning for frost at any time:
- Grow fast, cold-tolerant crops: Radishes, Lettuce, Spinach, Kale, Peas, Potatoes, Swiss Chard, Garlic.
- Plant once the soil can be worked — usually late spring to early summer at high elevation — and keep row covers ready for clear, still nights.
- Use season extension: cold frames, low tunnels, wall-of-water cloches or a greenhouse turn a few frost-free weeks into a real season.
- Frost-tender crops (tomatoes, squash, beans) need protection all season; choose the earliest varieties you can find.
How Sierraville compares
- Nearby Reno, NV, 47 km away, has a regular frost season (last frost Apr 28), a reminder of how much elevation and distance from the coast matter.
About these dates
Based on 1991–2020 NOAA climate normals for the Sagehen Creek, CA weather station, 20 km away (elevation 6,339 ft (1,932 m)).
Frost dates near Sierraville
- Calpine Jun 11 · Sep 10
- Loyalton May 9 · Oct 17
- Beckwourth Jun 11 · Sep 10
- Sierra City May 12 · Oct 29
- Portola Jun 11 · Sep 10
- Clio Jun 11 · Sep 10
- Norden frost any month
- Vinton May 21 · Oct 1
- Soda Springs frost any month
- Chilcoot May 21 · Oct 1
Frequently asked questions
When is the last frost in Sierraville, CA?
Sierraville, CA can freeze in any month, so there is no reliable last frost date. The nearest NOAA station averages 273 nights a year at or below 32°F.
What can I grow in Sierraville, CA?
Fast, cold-tolerant crops such as radishes, lettuce, spinach, kale, peas and potatoes, ideally under row covers, cold frames or a greenhouse. Frost-tender crops like tomatoes need protection all season.