Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Diamond Bar Weather in January
January in Diamond Bar brings pleasant temperatures, with highs of 21°C (70°F) and nights dropping to 7°C (45°F). With excellent weather conditions overall, it's a good time to visit.
Rainfall in Diamond Bar in January
You can expect rain on around 6 days based on historical patterns, with 55 mm (2.2 in) average for the month. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in Diamond Bar in January
Diamond Bar in January is worth a visit. The temperature is excellent, with 21°C (70°F) during the day and 7°C (45°F) at night. During January, the winter season is in full swing. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Diamond Bar in January
Enjoy a sunny month with about 198 hours of sunshine, the clear skies make Diamond Bar even more beautiful.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, May, October and November typically offer the best weather for Diamond Bar.
Diamond Bar Temperature in January
Min Temperature
7°C (45°F)
Max Temperature
21°C (70°F)
Chance of Rain
20%
Precipitation
55 mm (2.2 in)
Rainy days
6 days
Sunshine
198 hours *
Percentage Sunshine
*
* Data from: Corona, the United States of America (28 KM, 17 Miles).
Diamond Bar Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Diamond Bar - and find the best time to visit.
Best Places 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. See all of the United States of America in January →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Diamond Bar in January
For Diamond Bar in January, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Diamond Bar in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling10/10 -
Walking10/10 -
Camping4/10 -
Outdoor sports10/10
Diamond Bar 3-Day Forecast
More climate data for Diamond Bar
See the full Diamond Bar climate overview or explore weather in the United States of America.
Popular in January
Where to go in January - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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