December verdict

Upper Missouri River Breaks National Monument, United States in December

Weather score35Poor

Poor for holiday weather

Average highs are around -1°C, so pack for cooler days. Sunshine averages 3.7h per day, so this is not one of the brighter months. Rainfall averages 13mm, which is relatively low for holiday planning.

Temp

-1°C

Rain

13mm

Sun

3.7h

Weather score

Poor

TemperatureTemp

RainRain

SunSun

Weather scoreWeather score

Cool

Average highs are around -1°C, so pack for cooler days.

Drier

Rainfall averages 13mm, which is relatively low for holiday planning.

Limited sun

Sunshine averages 3.7h per day, so this is not one of the brighter months.

Map

Weather map

Compare Upper Missouri River Breaks National Monument, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.

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December-1°C average high

December has some of the coolest average daytime highs of the year, so pack for fresher conditions.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

December13mm average rain

December is one of Upper Missouri River Breaks National Monument'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.