Petrified Forest National Park, United States in December

December9°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.

December15mm average rain

December sits on the drier side of Petrified Forest National Park's year, which helps with sightseeing and transfers.

Driest monthsJanuary to July and September to December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

December7.1 hours average sun

December is one of Petrified Forest National Park's cloudier months, so sunshine-led plans are less reliable.

Brightest monthsMay to June

This stretch has the strongest sunshine in the monthly averages.

December44 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 August

These months have the strongest weather score in the monthly averages.