April weather forecastSunnyvale, TX
April
Weather in April
April in Sunnyvale, Texas, is a warm spring month, with an average temperature fluctuating between 74.5°F (23.6°C) and 55.9°F (13.3°C).Temperature
The coming of April brings a minor shift in Sunnyvale's weather, with average high-temperatures adjusting from March's enjoyable 66.7°F (19.3°C) to a moderately hot 74.5°F (23.6°C). In the month of April, Sunnyvale's average low-temperature falls to a mild 55.9°F (13.3°C).Humidity
The average relative humidity in April in Sunnyvale is 72%.Rainfall
In Sunnyvale, in April, it is raining for 14.3 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 149.6 rainfall days, and 33.35" (847mm) of precipitation is accumulated.Snowfall
In Sunnyvale, snow does not fall in March through December.Daylight
In Sunnyvale, the average length of the day in April is 13h and 1min.On the first day of the month, sunrise is at 7:13 am and sunset at 7:46 pm. On the last day of April, sunrise is at 6:39 am and sunset at 8:07 pm CDT.
Sunshine
In Sunnyvale, the average sunshine in April is 8.1h.UV index
In Sunnyvale, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the UV index of 5 transforms into the following advice:
Adopt protective measures - It is advised to guard against sun damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Sunnyvale, TX
- Average high temperature in April: 74.5°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in April: 55.9°F
The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in April
Sunnyvale, TX
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Sunnyvale, TX
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in April
Sunnyvale, TX
- Average humidity in April: 72%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (58%).
Average rainfall in April
Sunnyvale, TX
- Average rainfall in April: 2.91"
The wettest month (with the highest rainfall) is October (4.29").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in April
Sunnyvale, TX
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in April
Sunnyvale, TX
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in April
Sunnyvale, TX
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in April /
Average sunshine in April
Sunnyvale, TX
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 8h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in April
Sunnyvale, TX
- Average sunshine days in April: 13.4 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is September (13 days).
Average UV index in April
Sunnyvale, TX
- Average UV index in April: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in April
Sunnyvale, TX
- Average cloud cover in April: 37
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in April
Sunnyvale, TX
- 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).
