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Grimes, CA
Full City Profile · California · Sutter County County
1.8
/5.0
D
Poor
371
Population
164/sq mi density
$47,566
Median Income
$24,310 per capita
64°F
Avg Temperature
297 sunny days/yr
151
Violent Crime/100K
1,767 property/100K
D
Overall
1.8 / 5.0
Below average overall score based on economy, affordability, safety and education
C+
Economy
2.7 / 5.0
$47,566 median income, 2.3% unemployment
F
Safety
1.0 / 5.0
151 violent crimes/100K
D
Education
1.7 / 5.0
9.3% bachelor's degree or higher
Grimes enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 49°F in January while summers reach 81°F in July. The area gets 297 sunny days per year. Air quality is rated Good with a median AQI of 48.
Temperature
49°F Jan (9°C)
81°F Jul (27°C)
| Annual Average | 64.4°F |
| 19% above US avg | |
| January Average | 49°F (9°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 44 ft (13 m) |
| Area | 2.3 sq mi (5.9 km²) |
| Population Density | 164/sq mi |
| Coordinates | 39.0742°N, 121.8988°W |
| Timezone | America/Los_Angeles |
| County | Sutter County County |
| Nearest Airport | Sacramento International (SMF) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0464 ppm |
| NO₂ (Nitrogen Dioxide) | 9.6 ppb |
| PM2.5 (Fine Particles) | 8.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 83.7 / 100 |
| Social Vulnerability | 57.3 / 100 |
| Community Resilience | 41.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Very High |
| Cold Wave | No Rating |
| Landslide | Very Low |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Clear Lake (76 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 76 km |
| Lassen Volcanic Center | Stratovolcano | 3,187 m (10,456 ft) | 1917 | 161 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (9°C) | 3.5 in | Wettest |
| February | 51°F (10°C) | 2.9 in | |
| March | 55°F (13°C) | 2.5 in | |
| April | 60°F (16°C) | 0.9 in | |
| May | 68°F (20°C) | 0.4 in | |
| June | 73°F (23°C) | 0.2 in | |
| July | 81°F (27°C) | 0.0 in | Warmest, Driest |
| August | 75°F (24°C) | 0.1 in | |
| September | 72°F (22°C) | 0.4 in | |
| October | 64°F (18°C) | 1.1 in | |
| November | 53°F (12°C) | 2.7 in | |
| December | 46°F (8°C) | 2.7 in | Coldest |
Grimes has a seasonal temperature swing of 36°F / from 46°F in December to 81°F in July. Total annual precipitation is 17.3 inches, with January being the wettest month (3.5") and July the driest (0.0").