Missoula, MT Weather

Missoula has a cool-summer humid continental climate , with cold and moderately snowy winters, hot and dry summers, and short, crisp springs and autumns. Winters are usually milder than much of the rest of the state due to Missoula’s location west of the Rockies, allowing it to receive mild, moist Pacific air and avoid the worst of cold snaps; however, it also gets more precipitation in winter. Winter snowfall averages 39.5 inches (100 cm), typically occurring between October 30 and April 20. As with the rest of the state, summers are very sunny, and the average diurnal temperature variation is more than 30 °F (17 °C) from late June through late September, due to the relative aridity. The monthly daily average temperature ranges from 23.9 °F (−4.5 °C) in December to 68.6 °F (20.3 °C) in July. On average, annually, there are 24 days with temperatures at or above 90 °F (32 °C), 45 days where the temperature does not rise above freezing, and 7.8 days with temperatures reaching at or below 0 °F (−18 °C). Record temperatures range from −33 °F (−36 °C) on January 26, 1957 up to 107 °F (42 °C) on July 6, 2007; the record cold maximum is −13 °F (−25 °C), last recorded on February 2, 1989, while, conversely, the record warm minimum is 72 °F (22 °C) on July 27, 1939.