Weather By Day

May Weather In Missoula  
May Missoula Weather
Record High: 95°F
Normal High: 66°F
Normal Low: 39°F
Record Low: 21°F
Avg Monthly Rain: 1.95"
Rec 1 Day Rain: 1.83"
Avg Monthly Snow: 0.8"
Rec 1 Day Snow: 7.3"

Missoula Weather In May

In the last 66 years the highest measured temperature in Missoula Montana for May was 95 degrees Fahrenheit, most recently measured on May 31, 1986, and the average high is 66. The record low May temperature in Missoula for the last 66 years was 21 registered on May 6, 1999, and the typical low is 39.

United States National Weather Service historical Missoula May Weather data shows that on May 3, 1964, the high temperature did not exceed 33 degrees Fahrenheit, the lowest high measured in Missoula in the past 66 years. NWS data also shows that on May 31, 1957, the lowest measured temperature on that day did not drop below 58 degrees, the highest low temperature measured in Missoula in the last 66 years.

Weather Service historical data shows that the average daily high temperature in Missoula on May First is 62 degrees Fahrenheit and the average high on the last day of May is 69 degrees. The low temperature in Missoula in May on the first day of the month averages 35 degrees and the low temperature on the last day of the month averages 42 degrees.

Missoula usually receives an average of 1.95 inches of rain during the month. According to May Missoula Weather records, the most rain measured in a single day in May was 1.83 inches on May 25, 1980. Missoula averages 0.8 inches of snow in May. The highest snowfall on a single day in May was 7.3 inches on May 23, 1978.