Anaheim, California Weather
Coastal fog thickens at dawn. Day 76 of spring. Read this microseason across nine climate regions →
Anaheim weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——81°61°—
- ThursdayJun 4Overcast——83°60°+2°
- FridayJun 5Partly Cloudy——82°60°-1°
- SaturdayJun 6Overcast——77°64°-5°
- SundayJun 7Overcast——75°62°-2°
- MondayJun 8Overcast——79°62°+4°
- TuesdayJun 9Partly Cloudy——80°64°+1°
PM2.5 at 25.0 µg/m³ (AQI 81) with a 0.69 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 47 now. With UV 9.5 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 42 by mid-afternoon.
- Present
- AQI 47
- UV peak
- 9.5 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 42
PM × Wind × Precip
PM2.5 at 25.0 µg/m³ (AQI 81) with a 0.69 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.69
- Wind
- light
- 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
- 5:25 AM
- Moonset
- 3:15 PM
- In sign
- ♑︎ Capricorn
Coastal fog thickens at dawn
Anaheim at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: March 10 (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 3, 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 | 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
August brings Anaheim's warmest temperatures (~77°F mean) while December delivers the coldest (~59°F). Precipitation follows the opposite pattern, with January receiving the most rainfall (3.2 inches) and August the least (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 60° | 3.2″ | 5 |
| February | 60° | 3.0″ | 5 |
| March | 63° | 1.8″ | 3 |
| April | 65° | 0.7″ | 2 |
| May | 68° | 0.4″ | 1 |
| June | 72° | 0.1″ | 0 |
| July | 76° | 0.1″ | 0 |
| August | 77° | 0.0″ | 0 |
| September | 76° | 0.1″ | 0 |
| October | 71° | 0.6″ | 1 |
| November | 65° | 1.0″ | 2 |
| December | 59° | 2.4″ | 4 |
Regional context
Anaheim belongs to a hot-summer Mediterranean climate region — sharing similar temperature ranges, seasonal patterns, and growing conditions with nearby cities in this zone.
Similar climates: Los Angeles, CA, San Francisco, CA, San Diego, CA, Riverside, CA, Sacramento, CA.
Naturalist notes
Coast live oak trees begin their spring growth flush in late May, producing bright green new leaves that contrast sharply with their darker mature foliage.
Allen's hummingbirds return to local gardens and parks by March, the males performing their dramatic courtship dives as they establish territories for the breeding season.
Frequently asked
- When does it freeze in Anaheim?
- Anaheim typically sees its last spring frost around mid-March, while the first fall frost usually arrives around mid-December.
- What is the rainy season in Anaheim?
- January stands as the wettest month with about 3.2 inches of rain on average; annual precipitation totals roughly 14 inches.
- What is the warmest month in Anaheim?
- August typically brings the warmest weather, averaging about 77°F.
- What is the coldest month in Anaheim?
- December usually marks the coldest period, averaging about 59°F.
- When can I start a vegetable garden in Anaheim?
- Cool-season crops like peas and lettuce can be planted around the last spring frost (mid-March); warm-season crops such as tomatoes and peppers should wait until 1–2 weeks after.
- How many rainy days does Anaheim get?
- Anaheim sees rain on about 23 days per year on average.
- What hardiness zone is Anaheim?
- Anaheim's USDA hardiness zone depends on its lowest average winter temperature; the USDA's online lookup tool can provide the current zone designation using the city ZIP code.
Climate
Anaheim, California experiences a hot-summer Mediterranean climate zone. Temperatures in January hover near 60°F while July averages 76°F — creating a 16°F seasonal swing.
Throughout the year, Anaheim receives about 14 inches of precipitation spread over roughly 23 rainy days.
Geography shapes the city's weather patterns through its latitude (33.8°N), proximity to large water bodies, and elevation — factors that determine what grows here, when frost occurs, and daily weather conditions.