Cool
Average highs are around 4°C, so pack for cooler days.
December verdict
Poor for holiday weather
Average highs are around 4°C, so pack for cooler days. Sunshine averages 6.3h per day, enough for a balanced month. Rainfall averages 99mm, so some wet days are possible.
Monthly averages
Temp
4°C
Rain
99mm
Sun
6.3h
Weather score
35
Poor
Cool
Average highs are around 4°C, so pack for cooler days.
Showers
Rainfall averages 99mm, so some wet days are possible.
Some sun
Sunshine averages 6.3h per day, enough for a balanced month.
Map
Compare Mount Whitney, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
December4°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.
December99mm average rain
December is one of Mount Whitney's wettest months, so rain is likely to be a major planning factor.
Driest monthsMay to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December6.3 hours average sun
December is one of Mount Whitney's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
December35 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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