Petaluma

What is the climate like in Petaluma?

Petaluma is warmest in August, when daily highs average 77°F (25°C), and coolest in December, when lows fall to about 42°F (6°C). The wettest month is typically January and the driest is July; the year sees roughly 28 in of precipitation.

• Warmest monthAugust — average high 77°F (25°C)
• Coolest monthDecember — average low 42°F (6°C)
• Wettest monthJanuary (6.0 in)
• Driest monthJuly (0.0 in)
• Annual precipitation28 in