Stockton, California Weather
Coastal fog thickens at dawn. Day 78 of spring. Read this microseason across nine climate regions →
Stockton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Overcast——97°62°—
- SaturdayJun 6Overcast——86°59°-11°
- SundayJun 7Overcast——91°54°+5°
- MondayJun 8Light Drizzle17%0.01″74°60°-17°
- TuesdayJun 9Overcast18%—85°62°+11°
- WednesdayJun 10Clear——95°56°+10°
- ThursdayJun 11Clear——101°64°+6°
AQI 43 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (steady decline since this morning). PM2.5 at 13.5 µg/m³ (AQI 59) with a 0.67 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 13.5 µg/m³ (AQI 59) with a 0.67 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.67
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
The higher the clouds, the finer the weather.
- Moonrise
- 7:03 AM
- Moonset
- 5:22 PM
- In sign
- ♒︎ Aquarius
Coastal fog thickens at dawn
Stockton at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: April 4 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
July brings Stockton's warmest temperatures (~78°F mean) while January delivers the coldest (~49°F). Rainfall reaches its peak in January (3.6 inches) and drops to nearly nothing in July (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 49° | 3.6″ | 8 |
| February | 53° | 3.1″ | 7 |
| March | 58° | 2.4″ | 6 |
| April | 62° | 1.4″ | 3 |
| May | 69° | 0.6″ | 2 |
| June | 74° | 0.1″ | 0 |
| July | 78° | 0.0″ | 0 |
| August | 77° | 0.0″ | 0 |
| September | 75° | 0.1″ | 0 |
| October | 66° | 1.0″ | 2 |
| November | 56° | 1.8″ | 4 |
| December | 49° | 3.1″ | 7 |
Regional context
Stockton falls within a hot-summer Mediterranean climate region — sharing similar temperature ranges, seasonal patterns, and growing conditions with nearby cities in this climate cohort.
Similar climates: Los Angeles, CA, San Francisco, CA, San Diego, CA, Riverside, CA, Sacramento, CA.
Naturalist notes
Valley oaks begin dropping their acorns in late May as temperatures climb steadily toward summer.
Red-winged blackbirds establish territories in the marshes and waterways during late spring courtship season.
Frequently asked
- When does it freeze in Stockton?
- Stockton's last spring frost typically occurs around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Stockton?
- January stands as the wettest month with about 3.6 inches of rain on average; the city receives roughly 17 inches annually.
- What is the warmest month in Stockton?
- July typically brings the warmest weather, averaging about 78°F.
- What is the coldest month in Stockton?
- January typically delivers the coldest temperatures, averaging about 49°F.
- When can I start a vegetable garden in Stockton?
- Cool-season crops (peas, lettuce) can be planted around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) should wait until 1–2 weeks after.
- How many rainy days does Stockton get?
- Stockton experiences about 39 rainy days per year on average.
- What hardiness zone is Stockton?
- Stockton's USDA hardiness zone depends on its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Stockton, California experiences a hot-summer Mediterranean climate zone. January temperatures hover near 49°F while July averages 78°F — creating a 29°F seasonal swing.
Throughout the year, Stockton receives about 17 inches of precipitation spread over roughly 39 rainy days.
Latitude (38.0°N), proximity to large water bodies, and elevation determine the rhythm of the year — shaping what grows here, when frost is likely, and what the weather story looks like day to day.