Alpine County, California · Frost dates
Alpine County frost dates.
First-frost, last-frost, and growing-season length for Alpine County, California. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 9b
32°F — light freeze
Last spring frost
- 10%
- 06-07
- 20%
- 05-31
- 50%
- 05-12
- 80%
- 04-29
- 90%
- 04-24
First fall frost
- 10%
- 09-20
- 20%
- 09-27
- 50%
- 10-06
- 80%
- 10-17
- 90%
- 10-24
28°F — killing freeze
Last spring freeze
- 10%
- 05-18
- 20%
- 05-07
- 50%
- 04-24
- 80%
- 04-12
- 90%
- 04-07
First fall freeze
- 10%
- 10-02
- 20%
- 10-07
- 50%
- 10-18
- 80%
- 11-01
- 90%
- 11-06
Growing season length (days, 28°F threshold)
- Short year
- 137
- Median
- 177
- Long year
- 213
Source NOAA station
TOPAZ LAKE, NV US
17.2 mi · 30 yrs of record (1991–2020) · 5292 ft elev.
Data from TOPAZ LAKE, NV US, 17.2 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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