Napa

What is the climate like in Napa?

Napa is warmest in August, when daily highs average 87°F (30°C), and coolest in December, when lows fall to about 43°F (6°C). The wettest month is typically January and the driest is July; the year sees roughly 23 in of precipitation.

• Warmest monthAugust — average high 87°F (30°C)
• Coolest monthDecember — average low 43°F (6°C)
• Wettest monthJanuary (5.2 in)
• Driest monthJuly (0.0 in)
• Annual precipitation23 in