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Annual Rainfall Precipitation in Napa Valley

Napa Valley is a region in the United States of America. In Annual precipitation ranges from moderate in American Canyon with 79 mm of rainfall to high in Calistoga with 132 mm of rainfall. Annual is a winter month in Napa Valley.

Where and how much does it rain in Napa Valley in Annual?

Find the average total precipitation in Annual for the most popular destinations in Napa Valley on the map below. Click on a destination dot for more detailed information.

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Legend heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm precipitation. High: 90 mm to 160 mm. Moderate: 30 mm to 90 mm. Low: 5 mm to 30 mm.

  • How much rainfall does Napa Valley receive in Annual?
  • In Annual, Napa typically experiences moderate rainfall, averaging about 91 mm. This translates to a mix of wet and dry days throughout the month.

  • What is the wettest city in Annual in Napa Valley?
  • Based on our records, Calistoga is the location with the highest average precipitation, receiving about 132 mm.

  • What is the driest city in Annual in Napa Valley?
  • Among all locations in our dataset, American Canyon has the lowest average precipitation at 79 mm.

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