Fullerton weather in January (California, United States of America)

How is January weather typically in Fullerton? Explore our page to find a thorough overview of this month's weather conditions.

Temperatures

You’ll find the weather in Fullerton during January to be perfect, with pleasant temperatures and moderate rainfall. January ushers in the winter season. Daytime temperatures generally settle around 21°C, while nighttime can see a dip to about 8°C.

Precipitation

Fullerton in January usually receives moderate rainfall, averaging around 46 mm for the month. Typically, you can expect about 5 days of rain this month.

Average sunshine

Enjoy a sunny month with about 198 hours of sunshine, providing a cheerful and lively atmosphere.

If your ideal day consists of dry skies and moderate temperatures generally stand out with the best circumstances. While tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Fullerton climate page with graphs.

 

Fullerton, monthly averages in January

Min Temperature 8°C  

Max Temperature 21°C  

Chance of Rain 17%  

Precipitation 46 mm  

Rainy days 5 days  

Sunshine 198 hours *  

Percentage Sunshine *  

Data from: Corona, the United States of America (33 KM, 20 Miles).

Where to go in the United States of America in January

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Fullerton, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

5/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Fullerton.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.