April weather forecastUnderwood, WA
April
Weather in April
April is a cool spring month in Underwood, Washington, with an average temperature varying between 52.3°F (11.3°C) and 35.2°F (1.8°C).Temperature
Underwood observes a slight uplift in the average high-temperature with the onset of April, adjusting from March's chilly 44.2°F (6.8°C) to a cool 52.3°F (11.3°C). During April, the temperature is averaged to a low of 35.2°F (1.8°C) at night.Humidity
In April, the average relative humidity is 77%.Rainfall
In Underwood, in April, during 16.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, there are 159.7 rainfall days, and 31.42" (798mm) of precipitation is accumulated.Snowfall
In Underwood, snow does not fall in April through October.Daylight
In Underwood, the average length of the day in April is 13h and 34min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:35 pm. On the last day of April, sunrise is at 5:53 am and sunset at 8:12 pm PDT.
Sunshine
In Underwood, the average sunshine in April is 8h.UV index
The average daily maximum UV index in April in Underwood is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Underwood, WA
- Average high temperature in April: 52.3°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in April: 35.2°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure in April
Underwood, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in April
Underwood, WA
- Average wind speed in April: 6mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in April
Underwood, WA
- Average humidity in April: 77%
The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is July (59%).
Average rainfall in April
Underwood, WA
- Average rainfall in April: 2.52"
The wettest month (with the highest rainfall) is January (5.67").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in April
Underwood, WA
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in April
Underwood, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Underwood, WA
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is December (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Underwood, WA
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 8h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Underwood, WA
- Average sunshine days in April: 10.7 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (8.4 days).
Average UV index in April
Underwood, WA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in April
Underwood, WA
- Average cloud cover in April: 52
The months with the most cloud cover are January and February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in April
Underwood, WA
- Average visibility in April: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
