County Data
San Joaquin County, California
Self-reliance and preparedness data for San Joaquin County
Relatively High
Hazard Risk (31.5/100)
10a
USDA Zone
297
Frost-Free Days
Good
Solar (5.3 kWh/m²/day)
Natural Hazard Risks in San Joaquin County
| Hazard | Risk Rating | Score |
|---|---|---|
| Drought | Very High | 52.0 |
| Earthquake | Relatively High | 27.8 |
| Lightning | Relatively Moderate | 16.7 |
| Tornado | Relatively Low | 14.1 |
| Hail | Relatively Low | 10.6 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Climate Profile
Temperature & Growing Season
| January Avg | 48°F |
| July Avg | 76°F |
| USDA Zone | 10a |
| Frost-Free Days | 297 |
Water & Energy
| Annual Precipitation | 21.5″ |
| Solar Potential | 5.3 kWh/m²/day |
| Wind Speed | 2.2 m/s |
| Soil Type | Loam |
Local Species
54
Edible species
23
Medicinal species
75
Autonomy Score
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Frequently Asked Questions
- What are the biggest natural hazards in San Joaquin County, California?
- San Joaquin County has an overall hazard rating of Relatively High based on FEMA National Risk Index data. The top threats are Drought, Earthquake, Lightning. Each hazard is scored 0–100 by likelihood and expected impact.
- What is the growing season in San Joaquin County?
- San Joaquin County is in USDA Hardiness Zone 10a with approximately 297 frost-free days per year. This determines which crops, fruit trees, and perennials can survive your winters and how long your outdoor growing season lasts.
- Is San Joaquin County good for solar power?
- San Joaquin County has a good solar rating. Solar potential is based on average daily irradiance (kWh/m²/day), which determines how much energy rooftop or ground-mounted panels can produce year-round.
- How many edible plants grow in San Joaquin County?
- Our database identifies 54 edible plant species in San Joaquin County based on regional flora data, USDA hardiness zone, and iNaturalist observations. The full field guide includes identification notes, preparation methods, and seasonal availability.
- What is the autonomy score for San Joaquin County?
- San Joaquin County has an autonomy score of 75. This composite score measures local self-reliance potential across water access, food production capacity, energy resources, and supply chain resilience. Higher scores indicate greater potential for self-sufficiency.