Cool
Average highs are around 1°C, so pack for cooler days.
December verdict
Dillon (Montana), United States in December
Weather score32Poor
Poor for holiday weather
Average highs are around 1°C, so pack for cooler days. Sunshine averages 3.3h per day, so this is not one of the brighter months. Rainfall averages 7mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
1°C
Rain
7mm
Sun
3.3h
Weather score
32
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 7mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 3.3h per day, so this is not one of the brighter months.
Map
Weather map
Compare Dillon (Montana), United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December1°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
December7mm average rain
December is one of Dillon (Montana)'s driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and July to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December3.3 hours average sun
December is one of Dillon (Montana)'s cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
December32 weather score
December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
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