Mission Canyon, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Mission Canyon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——75°56°—
- MondayJul 6Clear——79°58°+4°
- TuesdayJul 7Clear——94°65°+15°
- WednesdayJul 8Clear——98°69°+4°
- ThursdayJul 9Clear——91°70°-7°
- FridayJul 10Clear——87°67°-4°
- SaturdayJul 11Overcast——87°65°0°
AQI 34 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.74 fine-to-coarse ratio and 5 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
Ozone × UV × Sky
Ozone at AQI 33 now. With UV 8.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 39 around 1 PM.
- Present
- AQI 33
- UV peak
- 8.9 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 39
PM × Wind × Precip
PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.74 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.74
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:15 PM
- Moonset
- 11:18 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Mission Canyon at a glance
- Today vs. normal: 12°F below the seasonal normal for this latitude
- Last frost: March 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Mission Canyon
- Sun76°56°6%
- Mon79°58°0%
- Tue94°65°0%
- Wed98°69°0%
- Thu91°70°1%
- Fri87°67°2%
- Sat87°65°3%
- Sun88°66°3%
- Mon93°67°8%
- Tue89°68°3%
- Wed93°74°2%
- Thu94°75°3%
- Fri103°79°3%
- Sat113°85°10%
- Sun93°73°10%
- Mon94°73°10%
Forecast data from Open-Meteo (CC BY 4.0).
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
August is Mission Canyon's warmest stretch (~75°F) and December its coldest (~56°F); precipitation crests in February at 3.2 inches and ebbs in August to 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 56° | 3.1″ | 9 |
| February | 57° | 3.2″ | 9 |
| March | 58° | 2.8″ | 9 |
| April | 61° | 1.2″ | 6 |
| May | 66° | 0.4″ | 3 |
| June | 70° | 0.0″ | 1 |
| July | 75° | 0.0″ | 1 |
| August | 75° | 0.0″ | 1 |
| September | 73° | 0.0″ | 1 |
| October | 69° | 0.4″ | 2 |
| November | 61° | 1.4″ | 5 |
| December | 56° | 2.3″ | 8 |
Regional context
Per NOAA NCEI 1991-2020 normals, Mission Canyon runs from a 56°F January mean to 75°F in July, a 18°F seasonal spread, with near 14.9 inches of precipitation across about 54 wet days.
Cool-season fronts carry Mission Canyon's rain: February logs 3.2 inches on 8.6 days, against August's 0.0 inches on 0.5 — winter does the heavy lifting in Mission Canyon. It is a winter-storm rhythm Mission Canyon shares with places like Santa Barbara, CA, Eastern Goleta Valley, CA and Montecito, CA.
With a coldest-month mean of 56°F, Mission Canyon stays mostly frost-free and grows year-round. The August peak near 75°F is Mission Canyon's real limit, pushing cool-season vegetables to spring and fall. Mission Canyon's coastal lots stay 4-7°F milder overnight than Mission Canyon's inland parcels.
Similar climates: Santa Barbara, CA, Eastern Goleta Valley, CA, Montecito, CA, Summerland, CA, Goleta, CA.
Frequently asked
- When does it freeze in Mission Canyon?
- Frost typically leaves Mission Canyon by mid-March and returns to Mission Canyon near mid-December.
- What is the rainy season in Mission Canyon?
- Rainfall in Mission Canyon peaks in February near 3.2 inches, out of about 15 inches annually.
- What is the warmest month in Mission Canyon?
- The warmest stretch in Mission Canyon comes in August, around 75°F on average.
- What is the coldest month in Mission Canyon?
- On average December is the chilliest month in Mission Canyon, about 56°F.
- When can I start a vegetable garden in Mission Canyon?
- Time tomatoes in Mission Canyon for two weeks after mid-March; peas and greens start at Mission Canyon's frost line.
- How many rainy days does Mission Canyon get?
- Expect roughly 54 wet days a year in Mission Canyon.
- What hardiness zone is Mission Canyon?
- Mission Canyon's USDA zone comes from its December mean (56°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Mission Canyon?
- Mission Canyon'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 Mission Canyon?
- See this week's day-by-day rain chances for Mission Canyon in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Mission Canyon?
- Current conditions for Mission Canyon and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Mission Canyon forecast updated?
- The Mission Canyon forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Mission Canyon?
- Today's sunrise and sunset times for Mission Canyon 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 Mission Canyon?
- The next few days in Mission Canyon's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Mission Canyon, California occupies a hot-summer Mediterranean zone, with January means near 56°F and July around 75°F — a 19°F swing.
Across the year, Mission Canyon collects about 15 inches of precipitation over roughly 54 days with measurable rain or snow.
Latitude 34.5°N gives Mission Canyon its 19°F swing, and with it the rhythm of Mission Canyon's growing season.
ZIP codes in Mission Canyon
- 93105