Cool
Average highs are around 13°C, so pack for cooler days.
December verdict
Mixed for holiday weather
Average highs are around 13°C, so pack for cooler days. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 22mm, which is relatively low for holiday planning.

Monthly averages
Temp
13°C
Rain
22mm
Sun
6h
Weather score
42
Mixed
Cool
Average highs are around 13°C, so pack for cooler days.
Drier
Rainfall averages 22mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Map
Compare Lancaster, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
December13°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.
December22mm average rain
December is wetter than Lancaster's yearly average, so flexible plans matter more.
Driest monthsFebruary to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December6 hours average sun
December is one of Lancaster's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
December42 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 monthsJune to September
These months have the strongest weather score in the monthly averages.
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