Pullman (WA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Pullman.
Climate overview of Pullman
The climate in Pullman, Washington State, United States of America, is marked by large temperature swings across the seasons, ranging from 29°C (84°F) in July to 3°C (37°F) in December.
The city receives around 507 mm (20 in) of rain/snowfall per year. It experiences a distinct dry season from May to October, with warm summers and cold winters. December is the wettest month and July the driest.
Pullman Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Pullman - and find the best time to visit.
Monthly Temperature in Pullman
In Pullman, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 29°C (84°F) in July to a chilly 3°C (37°F) in December.
Nighttime temperatures range from 10°C (50°F) in July to -4°C (25°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Pullman
On average, Pullman receives a reasonable amount of rain/snowfall, with an annual precipitation of 507 mm (20 in). The seasons in Pullman bring significant changes in precipitation. The wettest month, December, receives moderate snow/rainfall, with an average of 73 mm (2.9 in) of precipitation. This snow/rainfall is distributed across 16 snowy/rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 9.4 mm (0.4 in) over 4 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Pullman 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 Pullman
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Fewest rainy days: July, August and September
- Seasonal pattern: A distinct dry season from May to October, with warm summers and cold winters
- Coldest conditions: December, with freezing nights around -4°C (25°F).
Frequently asked questions about the climate in Pullman
What is the best time to visit Pullman?
June, July, August and September typically offer the most optimal weather in Pullman. In contrast, January, February, March, November and December tend to have less optimal conditions. Pullman has a distinct dry season from May to October, with warm summers and cold winters.
What temperatures can I expect in Pullman?
Daytime highs range from 3°C (37°F) in December to 29°C (84°F) in July. Nighttime lows range from -4°C (25°F) to 10°C (50°F). Temperatures vary considerably through the year.
How much rain does Pullman get?
Annual rainfall is around 507 mm (20 in). December is the wettest month with 73 mm (2.9 in), while July is the driest with 9.4 mm (0.4 in). In the coldest months, precipitation may fall as snow/rain.
Pullman 3-Day Forecast
Pullman (WA) 3-Day Forecast
Pullman on the map
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