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Lemon Grove, CA
Full City Profile · California · San Diego County County
2.5
/5.0
C+
Fair
27,489
Population
7,085/sq mi density
$79,278
Median Income
$35,402 per capita
$640,600
Home Value
$747,484 Zillow
$1,769
Median Rent
38.8% income on rent
63°F
Avg Temperature
330 sunny days/yr
615
Violent Crime/100K
2,031 property/100K
C+
Overall
2.5 / 5.0
Fair overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$79,278 median income, 4.7% unemployment
C
Affordability
2.1 / 5.0
$640,600 home value, $1,769/mo rent
F
Safety
1.0 / 5.0
615 violent crimes/100K (62% above avg)
C+
Education
2.6 / 5.0
20.3% bachelor's degree or higher
Lemon Grove enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 57°F in January while summers reach 70°F in July. The area gets 330 sunny days per year. Annual precipitation totals 9.2 inches. The area receives 0.0 inches of snow annually. Air quality is rated Good with a median AQI of 48.
Temperature
57°F Jan (14°C)
70°F Jul (21°C)
| Annual Average | 63.3°F |
| 17% above US avg | |
| January Average | 57°F (14°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 413 ft (126 m) |
| Area | 3.9 sq mi (10.0 km²) |
| Population Density | 7,085/sq mi |
| Coordinates | 32.7331°N, 117.0344°W |
| Timezone | America/Los_Angeles |
| County | San Diego County County |
| Nearest Airport | San Diego International (SAN) 9 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 48.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0453 ppm |
| NO₂ (Nitrogen Dioxide) | 13.7 ppb |
| SO₂ (Sulfur Dioxide) | 0.07 ppb |
| CO (Carbon Monoxide) | 0.50 ppm |
| PM2.5 (Fine Particles) | 8.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.7 / 100 |
| Social Vulnerability | 24.8 / 100 |
| Community Resilience | 8.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively High |
| Wildfire | Very High |
| Flood | Very High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively High |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.2 m (4 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1862 | S. CALIFORNIA | Eruption + Earthquake | 1.2 m | — | 16 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
1 volcano within 200 km. Closest: Salton Buttes (142 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Salton Buttes | Lava dome(s) | -40 m (-131 ft) | 210 | 142 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 57°F (14°C) | 2.3 in | Coldest |
| February | 58°F (15°C) | 2.2 in | |
| March | 59°F (15°C) | 2.4 in | Wettest |
| April | 62°F (17°C) | 0.9 in | |
| May | 65°F (18°C) | 0.2 in | |
| June | 68°F (20°C) | 0.1 in | |
| July | 70°F (21°C) | 0.0 in | Driest |
| August | 74°F (23°C) | 0.1 in | Warmest |
| September | 72°F (22°C) | 0.2 in | |
| October | 68°F (20°C) | 0.4 in | |
| November | 62°F (17°C) | 1.3 in | |
| December | 57°F (14°C) | 1.5 in |
Lemon Grove has a seasonal temperature swing of 17°F / from 57°F in January to 74°F in August. Total annual precipitation is 11.9 inches, with March being the wettest month (2.4") and July the driest (0.0").