Colusa (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Colusa.
Climate overview of Colusa
The climate in Colusa, California, United States of America, is marked by large temperature swings across the seasons, ranging from 34°C (93°F) in July to 13°C (55°F) in December.
The city has a relatively dry climate, receiving around 381 mm (15 in) of rainfall per year. It does experience a distinct dry season from April to November, with very warm summers and mild winters. December is the wettest month and July the driest.
Colusa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Colusa - and find the best time to visit.
Monthly Temperature in Colusa
In Colusa, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 34°C (93°F) in July to a moderate 13°C (55°F) in December.
Nighttime temperatures range from 16°C (61°F) in July to 3°C (37°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Colusa
Colusa's climate is marked by below-average rainfall, accumulating 381 mm (15 in) of precipitation yearly. The seasons in Colusa bring significant changes in precipitation. The wettest month, December, receives moderate rainfall, with an average of 75 mm (3 in) of precipitation. This rainfall is distributed across 10 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 0.4 mm (0.02 in) over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Colusa Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Colusa
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: March, April, May and October
- Warmest weather: July and August
- Fewest rainy days: June, July, August and September
- Seasonal pattern: A distinct dry season from April to November, with very warm summers and mild winters
Frequently asked questions about the climate in Colusa
What is the best time to visit Colusa?
March, April, May and October typically offer the most optimal weather in Colusa. In contrast, July and August tend to have less optimal conditions. Colusa has a distinct dry season from April to November, with very warm summers and mild winters.
What temperatures can I expect in Colusa?
Daytime highs range from 13°C (55°F) in December to 34°C (93°F) in July. Nighttime lows range from 3°C (37°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Colusa get?
Annual rainfall is around 381 mm (15 in). December is the wettest month with 75 mm (3 in), while July is the driest with 0.4 mm (0.02 in).
Colusa 3-Day Forecast
Colusa (CA) 3-Day Forecast
Colusa on the map
Colusa is highlighted - select any city to see its climate.
Popular this month
Where to go in July - 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
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.