Kelso Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from pleasant to chilly in Kelso. Average daytime temperatures reach a pleasant 19°C (66°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).

At night, temperatures range from around 11°C (52°F) in July to 2°C (36°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Kelso has a moderate amount of precipitation, averaging 861 mm (34 in) of rain/snowfall annually. Despite minor fluctuations, Kelso enjoys fairly consistent precipitation throughout the year. In August, you can expect around 84 mm (3.3 in) of precipitation, while in March, Kelso receives about 60 mm (2.4 in). For more details, please visit our Kelso Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Kelso can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 5.4 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 1.3 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The city experiences its highest humidity in December, reaching 90%. In May, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year