April weather forecastCalistoga, CA
April
Weather in April
April, the same as March, is another comfortable spring month in Calistoga, California, with an average temperature fluctuating between 43.3°F (6.3°C) and 67.6°F (19.8°C).Temperature
The onset of April marks a slight increase in the average high-temperature, moving from an enjoyable 61.2°F (16.2°C) in March to a still refreshing 67.6°F (19.8°C). A significant temperature decrease to an average a chilly 43.3°F (6.3°C) characterizes Calistoga's nighttime temperatures during April.Humidity
In Calistoga, the average relative humidity in April is 68%.Rainfall
In Calistoga, in April, it is raining for 8.3 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, there are 77 rainfall days, and 17.05" (433mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in Calistoga.Daylight
The average length of the day in April is 13h and 14min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:34 pm. On the last day of April, sunrise is at 6:13 am and sunset at 8:01 pm PDT.
Sunshine
The average sunshine in April is 9.8h.UV index
The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 5 in April translates into the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Calistoga, CA
- Average high temperature in April: 67.6°F
The warmest month (with the highest average high temperature) is August (87.8°F).
The month with the lowest average high temperature is December (54.7°F).
- Average low temperature in April: 43.3°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).
Average pressure in April
Calistoga, CA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in April
Calistoga, CA
- Average wind speed in April: 5.7mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in April
Calistoga, CA
- Average humidity in April: 68%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (53%).
Average rainfall in April
Calistoga, CA
- Average rainfall in April: 0.83"
The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in April
Calistoga, CA
- Average rainfall days in April: 8.3 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (0.8 days).
Average snowfall in April
Calistoga, CA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in April
Calistoga, CA
- Average snowfall days in April: 0 days
The months with the highest number of snowfall days are February and March (0.1 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
Calistoga, CA
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 9h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in April
Calistoga, CA
- Average sunshine days in April: 20.7 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in April
Calistoga, CA
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in April
Calistoga, CA
- Average cloud cover in April: 32
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in April
Calistoga, CA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is March (5mi).
