Cool
Average highs are around 17°C, so pack for cooler days.
May verdict
Montana, United States in May
Weather score42Mixed
Mixed for holiday weather
Average highs are around 17°C, so pack for cooler days. Sunshine averages 9.5h per day, so bright days are a strong part of the month. Rainfall averages 79mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
17°C
Rain
79mm
Sun
9.5h
Weather score
42
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 79mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9.5h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Montana, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May17°C average high
May is close to Montana's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
May79mm average rain
May is one of Montana's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May9.5 hours average sun
May is brighter than Montana's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
May42 weather score
May scores below Montana's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
Hotels near Montana, United States
Marriott
SpringHill Suites by Marriott Great FallsGreat Falls, Montana, USA
TownePlace Suites by Marriott Great FallsGreat Falls, Montana, USA
Fairfield Inn & Suites Livingston YellowstoneLivingston, Montana, USA
Residence Inn HelenaHelena, Montana, USA
Delta Hotels Helena ColonialHelena, Montana, USA
Fairfield by Marriott Inn & Suites Helena NorthHelena, Montana, USA