Dumas (TX) Weather & Climate: Best Time to Visit

The climate in Dumas is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a very warm 34°C (93°F) in July to a chilly 9°C (48°F) in the coolest month, December.

Nights vary from 19°C (66°F) in July to around -6°C (21°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

With annual rain/snowfall averaging 436 mm (17 in), Dumas maintains relatively low precipitation levels throughout the seasons. The climate in Dumas shows significant variation throughout the year. Expect moderate rainfall in August, the wettest month, with an average of 73 mm (2.9 in) of precipitation over 10 rainy days.

In contrast, the driest month November offers drier and sunnier days, with around 8.5 mm (0.3 in) of rainfall over 2 rainy days. For more details, please visit our Dumas Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Dumas serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.8 hours of sunshine daily, and embrace the darker days in December, offering only 6.7 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is moderate throughout the year in Dumas.

The city experiences its highest humidity in September, reaching 60%. In April, the humidity drops to its lowest level at 47%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year