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 snowfall in April
- Average snowfall 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
April's arrival is noted with a slight increase in the average high-temperature, moving from a frosty 47.3°F (8.5°C) in March to a mild 55.8°F (13.2°C). Smithville, during the nights of April, experiences an average temperature drop to a wintry 37°F (2.8°C).Humidity
The average relative humidity in April in Smithville, Washington, is 70%.Rainfall
In April, the rain falls for 13.7 days. Throughout April, 1.26" (32mm) of precipitation is accumulated. In Smithville, during the entire year, the rain falls for 133.5 days and collects up to 16.93" (430mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Smithville, the average length of the day in April is 13h and 34min.On the first day of April, sunrise is at 6:42 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:11 pm PDT.
Sunshine
In Smithville, the average sunshine in April is 9.8h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In April, the maximum UV index of 3 transforms into these recommendations:
Guard yourself - Avoiding sunburn is suggested. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How much does it rain in April?
When it does not snow?
Does it snow in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Smithville, WA
- Average high temperature in April: 55.8°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in April: 37°F
The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in April
Smithville, WA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in April
Smithville, WA
- Average wind speed in April: 6.5mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).
Average humidity in April
Smithville, WA
- Average humidity in April: 70%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in April
Smithville, WA
- Average rainfall in April: 1.26"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in April
Smithville, WA
- Average rainfall days in April: 13.7 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in April
Smithville, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Smithville, WA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is December (4.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Smithville, WA
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- 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 January (Average sunshine: 4h and 48min).
Average sunshine days in April
Smithville, WA
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in April
Smithville, 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, November and December (UV index 2).
Average cloud cover in April
Smithville, WA
- Average cloud cover in April: 37
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in April
Smithville, WA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Smithville, Washington, USA
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