If you're looking for summer vibes, the best time to travel to Pullman - Moscow, WA is in July, August and June, when the average temperature reaches 23.49 °C, while July, August and June are the 3 sunniest months of the year, with an average of 146.85 hours.
However, if you prefer colder temperatures, make sure you visit Pullman - Moscow, WA during December, January or February to experience an average of -2.36 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during January, February and March, when the average precipitation in Pullman - Moscow, WA is 3 mm, while the months of January, February and March are drier, with an average of 0 mm.