April in the Napa Valley overflows with the springtime blush of blossoms, scents and colors. The beauty of the blooming mustard can be seen up and down the roads and summer is in the air.
In April, the average temperature in Calistoga is 56 degrees, with an average high of 68, and an average low of 41 degrees. Average rainfall in Calistoga for April is 2.39 inches. The temperatures in April are rising, with April 2013 seeing a high of 91 degrees on two days at the end of the month. April in Napa Valley is definitely a sunny month with an average of 11 hours a day of sunlight.
Rain or shine, the natural beauty of the valley definitely shines in April, and the climate is perfect. Come see the Napa Valley in April while the mustard is still in bloom. You will never forget it.