THINGS TO DO · YOUTUBE SHORT
Fullerton Community Park
A local activity Short shared by Owen's Travels.
Watch on YouTube ↗
Weather · January
Fullerton weather in January
Average highs of 69°F, lows of 46°F and 2.9 in of rain, from 30 years of weather records.
January is Fullerton’s 11th warmest month, with average highs of 69°F and lows of 46°F. That is 1° warmer than December, and 8° below the yearly average high.
- Average high
- 69°F
- Average low
- 46°F
- Precipitation
- 2.9 in
- Wet days
- 5
- Sunrise · sunset
- 6:56 AM · 5:05 PM
January across the year
High and low Rain
What to wear in January
- Mild days: dress in layers, with a light jacket or sweater for mornings and evenings.
January is good for
Around Fullerton
See Fullerton
A look around town before you go.
THINGS TO DO · YOUTUBE SHORT
having fun at the hiking trail fullerton california have a great day!
A local activity Short shared by Franz ScottLee.
Watch on YouTube ↗January compared with the months around it
Planning a trip? See the best time to visit Fullerton and today’s forecast.
Questions
How hot does it get in Fullerton in January?
Average highs are 69°F and average lows 46°F, for a daily mean of 58°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in Fullerton in January?
January averages 2.9 in of precipitation over about 5 days with at least 0.01 in. It is the 2nd wettest month of the year.
What time is sunset in Fullerton in January?
Around mid-January the sun rises about 6:56 AM and sets about 5:05 PM, for roughly 10.1 hours of daylight.
Is January a good time to visit Fullerton?
The mildest months for visiting are May, June, July. January is mild.
NOAA U.S. Climate Normals 1991–2020, Fullerton Muni Ap station (2.9 mi from downtown). Sunrise and sunset are calculated for January 15 at the city’s coordinates.