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Gridley, CA
Full City Profile · California · Yuba County County
2.6
/5.0
C+
Fair
7,372
Population
3,321/sq mi density
$57,860
Median Income
$28,242 per capita
$297,700
Home Value
$344,999 Zillow
$1,127
Median Rent
28.8% income on rent
63°F
Avg Temperature
326 sunny days/yr
438
Violent Crime/100K
3,098 property/100K
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$57,860 median income, 5.7% unemployment
B+
Affordability
3.8 / 5.0
$297,700 home value, $1,127/mo rent
F
Safety
1.0 / 5.0
438 violent crimes/100K (15% above avg)
C
Education
2.2 / 5.0
14.9% bachelor's degree or higher
Gridley enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 47°F in January while summers reach 81°F in July. The area gets 326 sunny days per year. Annual precipitation totals 25.7 inches. Air quality is rated Good with a median AQI of 48.
Temperature
47°F Jan (9°C)
81°F Jul (27°C)
| Annual Average | 63.2°F |
| 17% above US avg | |
| January Average | 47°F (9°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 326 days/yr |
Geography
| Elevation | 92 ft (28 m) |
| Area | 2.1 sq mi (5.4 km²) |
| Population Density | 3,321/sq mi |
| Coordinates | 39.3622°N, 121.6971°W |
| Timezone | America/Los_Angeles |
| County | Yuba County County |
| Nearest Airport | Chico Regional (CIC) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 80.9 / 100 |
| Social Vulnerability | 30.4 / 100 |
| Community Resilience | 36.6 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Drought | Relatively High |
| Cold Wave | No Rating |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Clear Lake (102 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Clear Lake | Volcanic field | 1,439 m (4,721 ft) | Unknown | 102 km |
| Lassen Volcanic Center | Stratovolcano | 3,187 m (10,456 ft) | 1917 | 127 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 47°F (9°C) | 4.5 in | Wettest |
| February | 51°F (11°C) | 3.8 in | |
| March | 55°F (13°C) | 3.6 in | |
| April | 60°F (16°C) | 1.3 in | |
| May | 68°F (20°C) | 0.7 in | |
| June | 73°F (23°C) | 0.4 in | |
| July | 81°F (27°C) | 0.0 in | Warmest, Driest |
| August | 75°F (24°C) | 0.1 in | |
| September | 71°F (22°C) | 0.4 in | |
| October | 63°F (17°C) | 1.3 in | |
| November | 53°F (12°C) | 3.2 in | |
| December | 46°F (8°C) | 3.2 in | Coldest |
Gridley has a seasonal temperature swing of 35°F / from 46°F in December to 81°F in July. Total annual precipitation is 22.6 inches, with January being the wettest month (4.5") and July the driest (0.0").