Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The onset of April marks a slight increase in the average high-temperature, moving from a comfortable 60.8°F (16°C) in March to a still refreshing 66.6°F (19.2°C). Contrary to the day's heat, an average low-temperature of 44.4°F (6.9°C) is recorded during the nights in April.Humidity
In Windsor, the average relative humidity in April is 70%.Rainfall
In Windsor, in April, it is raining for 8.6 days, with typically 0.94" (24mm) of accumulated precipitation. In Windsor, during the entire year, the rain falls for 80.5 days and collects up to 17.6" (447mm) of precipitation.Daylight
In April, the average length of the day is 13h and 14min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:35 pm. On the last day of April, sunrise is at 6:14 am and sunset at 8:02 pm PDT.
Sunshine
In Windsor, the average sunshine in April is 9.9h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 5 in April leads to these guidelines:
Take precautions - Protection against sunburn is recommended. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How many days does it rain in April?
How many hours of daylight does Windsor have in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Windsor have in April?
How high is the UV index in April?
Average temperature in April
Windsor, CA
- Average high temperature in April: 66.6°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in April: 44.4°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in April
Windsor, 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 (29.92"Hg).
Average wind speed in April
Windsor, CA
- Average wind speed in April: 6.3mph
The windiest month (with the highest average wind speed) is May (6.4mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in April
Windsor, CA
- Average humidity in April: 70%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (58%).
Average rainfall in April
Windsor, CA
- Average rainfall in April: 0.94"
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
Windsor, CA
- Average rainfall days in April: 8.6 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1 days).
Average daylight in April /
Average sunshine in April
Windsor, CA
- Average daylight in April: 13h and 1min
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 5min
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 36min).
Average sunshine days in April
Windsor, CA
- Average sunshine days in April: 20.2 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (15.3 days).
Average UV index in April
Windsor, CA
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Windsor, CA
- Average cloud cover in April: 31
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in April
Windsor, CA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Windsor, California, USA
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