Carson, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Carson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——82°64°—
- MondayJul 6Partly Cloudy——81°61°-1°
- TuesdayJul 7Clear——84°63°+3°
- WednesdayJul 8Clear——86°68°+2°
- ThursdayJul 9Clear——81°69°-5°
- FridayJul 10Overcast——78°68°-3°
- SaturdayJul 11Overcast——79°68°+1°
AQI 51 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 13.4 µg/m³ (AQI 59) with a 0.78 fine-to-coarse ratio and 3 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 13.4 µg/m³ (AQI 59) with a 0.78 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.78
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:09 PM
- Moonset
- 11:12 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Carson at a glance
- Today vs. normal: 77°F — typical for the season
- Last frost: March 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 90745, 90746, 90747
16-Day Forecast — Carson
- Sun82°64°0%
- Mon81°61°0%
- Tue84°63°0%
- Wed86°68°0%
- Thu81°69°0%
- Fri78°68°0%
- Sat79°68°0%
- Sun84°69°2%
- Mon84°72°6%
- Tue84°72°7%
- Wed89°75°2%
- Thu91°75°10%
- Fri97°80°10%
- Sat100°76°7%
- Sun83°74°13%
- Mon87°73°13%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Carson
Right now in the garden
Peak growing season
As of July 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.
Microseason · July 1–5
Summer heat deepens across the valleys
Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
Carson peaks at about 73°F in August and bottoms near 54°F in January; February brings the heaviest rain (2.3 inches) and August the least (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 54° | 2.2″ | 9 |
| February | 55° | 2.3″ | 8 |
| March | 57° | 1.8″ | 9 |
| April | 61° | 0.8″ | 7 |
| May | 64° | 0.2″ | 4 |
| June | 67° | 0.0″ | 2 |
| July | 72° | 0.1″ | 1 |
| August | 73° | 0.0″ | 0 |
| September | 71° | 0.0″ | 1 |
| October | 67° | 0.3″ | 3 |
| November | 60° | 1.0″ | 6 |
| December | 54° | 1.7″ | 7 |
Regional context
Carson swings from 54°F in January to 72°F in July (18°F) per NOAA NCEI 1991-2020 normals; precipitation in Carson runs about 10.6 inches on roughly 57 measurable days.
Cool-season fronts carry Carson's rain: February logs 2.3 inches on 7.6 days, against August's 0.0 inches on 0.2 — winter does the heavy lifting in Carson. It is a winter-storm rhythm Carson shares with places like West Carson, CA, Compton, CA and Lomita, CA.
With a coldest-month mean of 54°F, Carson stays mostly frost-free and grows year-round. The August peak near 73°F is Carson's real limit, pushing cool-season vegetables to spring and fall. Within Carson, low or inland lots lose 3-5°F overnight versus Carson's coastal ground.
Similar climates: West Carson, CA, Compton, CA, Lomita, CA, West Rancho Dominguez, CA, Gardena, CA.
Naturalist notes
By late May, fledgling western scrub-jays begin testing their wings in suburban yards, noisily chasing parents for insects and cached acorns.
Low in the southwestern sky after sunset, Venus reaches its greatest eastern elongation in early June, hanging bright and unmistakable through the late-spring twilight.
Frequently asked
- When does it freeze in Carson?
- Frost typically leaves Carson by mid-March and returns to Carson near mid-December.
- What is the rainy season in Carson?
- February is the wettest month in Carson, about 2.3 inches on average; the year totals roughly 11 inches.
- What is the warmest month in Carson?
- The warmest stretch in Carson comes in August, around 73°F on average.
- What is the coldest month in Carson?
- On average January is the chilliest month in Carson, about 54°F.
- When can I start a vegetable garden in Carson?
- Carson's last frost (mid-March) cues hardy greens; in Carson, hold heat-lovers two weeks past.
- How many rainy days does Carson get?
- Carson averages about 57 days with measurable rain or snow each year.
- What hardiness zone is Carson?
- Carson's hardiness zone tracks its winter low; with January near 54°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Carson?
- Carson's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Carson?
- See this week's day-by-day rain chances for Carson in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Carson?
- Current conditions for Carson and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Carson forecast updated?
- The Carson forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Carson?
- Today's sunrise and sunset times for Carson are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Carson?
- The next few days in Carson's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Carson, California occupies a hot-summer Mediterranean zone, with January means near 54°F and July around 72°F — a 18°F swing.
Rain and snow bring Carson roughly 11 inches a year across approximately 57 measurable-precipitation days.
Latitude 33.8°N gives Carson its 18°F swing, and with it the rhythm of Carson's growing season.
ZIP codes in Carson
- 90248
- 90810
- 90747
- 90746
- 90745
- 90224
- 90749
- 90895