March in the Napa Valley is a fantastic time to visit. The promise of spring with verdant green hills and the early blossoms show the Wine Country visitor that the seasons here are mild and inviting.

In March, the average temperature in Calistoga is 54 degrees, with an average high of 67, and an average low of 41 degrees. The average rainfall in Calistoga for March is 5.7 inches.

In March, temperatures may rise to near 80.  March is also unpredictable, seeing peaks of 89 degrees, and as low of 24 degrees. 

In early March, don’t miss the Napa Valley Marathon as it attracts runners from near and far. The course winds south from Calistoga down the Silverado Trail to Napa through one of the most beautiful grape growing regions in the world.