All Countries
Napa, CA
Full City Profile · California · Napa County County
3.0
/5.0
B
Good
78,816
Population
4,367/sq mi density
$102,231
Median Income
$52,369 per capita
$824,500
Home Value
$877,111 Zillow
$2,165
Median Rent
31.8% income on rent
57°F
Avg Temperature
316 sunny days/yr
352
Violent Crime/100K
1,549 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.8 / 5.0
$102,231 median income, 3.6% unemployment
C
Affordability
2.1 / 5.0
$824,500 home value, $2,165/mo rent
F
Safety
1.0 / 5.0
352 violent crimes/100K
B+
Education
3.9 / 5.0
36.7% bachelor's degree or higher
Napa enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 48°F in January while summers reach 68°F in July. The area gets 316 sunny days per year. Annual precipitation totals 40.2 inches. The area receives 3.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
48°F Jan (9°C)
68°F Jul (20°C)
| Annual Average | 56.6°F |
| 5% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 316 days/yr |
Geography
| Elevation | 49 ft (15 m) |
| Area | 18.1 sq mi (46.7 km²) |
| Population Density | 4,367/sq mi |
| Coordinates | 38.2979°N, 122.3007°W |
| Timezone | America/Los_Angeles |
| County | Napa County County |
| Nearest Airport | Metro Oakland International (OAK) 40 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.3 / 100 |
| Social Vulnerability | 38.5 / 100 |
| Community Resilience | 76.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Moderate |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Very High |
| Cold Wave | No Rating |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Very Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1868 | N. CALIFORNIA | Eruption + Earthquake | 4.5 m | 30 | 69 km |
| 1989 | N. CALIFORNIA | Earthquake | 1.0 m | 62 | 145 km |
| 1856 | N. CALIFORNIA | Eruption + Earthquake | 0.6 m | - | 89 km |
| 1906 | N. CALIFORNIA | Eruption + Earthquake | 0.1 m | - | 69 km |
| 1865 | N. CALIFORNIA | Eruption + Earthquake | - | - | 127 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Clear Lake (85 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 85 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 6.1 in | Wettest |
| February | 51°F (10°C) | 5.2 in | |
| March | 53°F (12°C) | 4.2 in | |
| April | 57°F (14°C) | 1.5 in | |
| May | 62°F (17°C) | 0.7 in | |
| June | 67°F (20°C) | 0.2 in | |
| July | 68°F (20°C) | 0.0 in | Driest |
| August | 70°F (21°C) | 0.1 in | Warmest |
| September | 69°F (20°C) | 0.4 in | |
| October | 63°F (17°C) | 1.6 in | |
| November | 53°F (12°C) | 4.1 in | |
| December | 47°F (8°C) | 4.5 in | Coldest |
Napa has a seasonal temperature swing of 24°F / from 47°F in December to 70°F in August. Total annual precipitation is 28.7 inches, with January being the wettest month (6.1") and July the driest (0.0").