County Data
Plumas County, California
Self-reliance and preparedness data for Plumas County
Relatively Moderate
Hazard Risk (17.2/100)
7b
USDA Zone
146
Frost-Free Days
Good
Solar (5.1 kWh/m²/day)
Natural Hazard Risks in Plumas County
| Hazard | Risk Rating | Score |
|---|---|---|
| Landslide | Relatively High | 42.4 |
| Wildfire | Relatively High | 32.6 |
| Volcanic Activity | Relatively Low | 26.8 |
| Drought | Relatively High | 22.3 |
| Riverine Flooding | Relatively Moderate | 15.9 |
Source: FEMA National Risk Index. Scores 0–100, higher = more risk.
Wildfire Risk in Plumas County
FEMA National Risk Index32.6/100 — Meaningful, seasonal. Ranked 62 of 562 US counties where wildfire is a leading hazard.
What that means for Plumas County households
- ●Clear leaf litter from gutters and roof valleys before dry season
- ●Know your evacuation route and where local shelters open
- ●Stock N95 masks — smoke from distant fires is the more likely exposure
- ●Keep a two-week supply buffer for the periods when roads close
Full wildfire preparedness guide · See how California compares
Climate Profile
Temperature & Growing Season
| January Avg | 32°F |
| July Avg | 71°F |
| USDA Zone | 7b |
| Frost-Free Days | 146 |
Water & Energy
| Annual Precipitation | 38.8″ |
| Solar Potential | 5.1 kWh/m²/day |
| Wind Speed | 0.2 m/s |
| Soil Type | Loam |
Local Species
54
Edible species
23
Medicinal species
66
Autonomy Score
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Frequently Asked Questions
- What are the biggest natural hazards in Plumas County, California?
- Plumas County has an overall hazard rating of Relatively Moderate based on FEMA National Risk Index data. The top threats are Landslide, Wildfire, Volcanic Activity. Each hazard is scored 0–100 by likelihood and expected impact.
- What is the growing season in Plumas County?
- Plumas County is in USDA Hardiness Zone 7b with approximately 146 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 Plumas County good for solar power?
- Plumas 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 Plumas County?
- Our database identifies 54 edible plant species in Plumas 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 Plumas County?
- Plumas County has an autonomy score of 66. 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.