San Joaquin County, California · Frost dates
San Joaquin County frost dates.
First-frost, last-frost, and growing-season length for San Joaquin County, California. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 9b
32°F — light freeze
Last spring frost
- 10%
- 02-28
- 20%
- 02-23
- 50%
- 02-06
- 80%
- 01-14
- 90%
- 12-31
First fall frost
- 10%
- 11-15
- 20%
- 11-20
- 50%
- 12-01
- 80%
- 12-13
- 90%
- 12-26
28°F — killing freeze
Last spring freeze
- 10%
- 02-05
- 20%
- 01-30
- 50%
- 01-10
- 80%
- 12-24
- 90%
- 12-14
First fall freeze
- 10%
- 11-29
- 20%
- 12-02
- 50%
- 12-16
- 80%
- 01-05
- 90%
- 01-14
Growing season length (days, 28°F threshold)
- Short year
- 297
- Median
- 340
- Long year
- 396
Source NOAA station
STOCKTON METRO AP, CA US
4.1 mi · 30 yrs of record (1991–2020) · 26 ft elev.
Data from STOCKTON METRO AP, CA US, 4.1 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.