Placer County, California · Frost dates
Placer County frost dates.
First-frost, last-frost, and growing-season length for Placer County, California. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 9b
32°F — light freeze
Last spring frost
- 10%
- 05-10
- 20%
- 04-27
- 50%
- 04-12
- 80%
- 03-28
- 90%
- 03-13
First fall frost
- 10%
- 10-29
- 20%
- 11-05
- 50%
- 11-21
- 80%
- 12-03
- 90%
- 12-09
28°F — killing freeze
Last spring freeze
- 10%
- 04-14
- 20%
- 04-05
- 50%
- 03-13
- 80%
- 02-18
- 90%
- 01-31
First fall freeze
- 10%
- 11-18
- 20%
- 11-24
- 50%
- 12-08
- 80%
- 12-26
- 90%
- 01-06
Growing season length (days, 28°F threshold)
- Short year
- 218
- Median
- 270
- Long year
- 340
Source NOAA station
GEORGETOWN RS, CA US
9.8 mi · 30 yrs of record (1991–2020) · 3001 ft elev.
Data from GEORGETOWN RS, CA US, 9.8 miles away with 30-year NOAA record (1991-2020).
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