Rancho Cucamonga weather in December (California, United States of America)

Wondering what the weather is like in Rancho Cucamonga during December? Here's what you need to know about the weather for the month.

Temperatures

In December, the weather in Rancho Cucamonga generally includes pleasant temperatures and moderate rainfall. Experience the winter season in December. Throughout the day, temperatures can rise to about 18°C. At night, they generally drop to 6°C. While temperatures are the coolest of this year this month, they remain pleasant and warm for outdoor activities.

Precipitation

Rancho Cucamonga in December usually receives moderate rainfall, averaging around 98 mm for the month. With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. Climate statistics over the past 30 years suggest around 8 days of rain.

Average sunshine

With around 205 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Rancho Cucamonga. January, February, March, April, May, June, July, September, October and November typically offer the most agreeable circumstances. On the other hand, August and December tend to be characterized by conditions that may not be as optimal.

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

 

Rancho Cucamonga, monthly averages in December

Min Temperature 6°C  

Max Temperature 18°C  

Chance of Rain 27%  

Precipitation 98 mm  

Rainy days 8 days  

Sunshine 205 hours *  

Percentage Sunshine *  

Data from: Corona, the United States of America (25 KM, 16 Miles).

Where to go in the United States of America in December

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 Rancho Cucamonga, 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.

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

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

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.