April weather forecast
Renton, WA

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Weather in April

The arrival of April brings about a welcome change in weather dynamics for the inhabitants of Renton. Temperatures tend to swing from 39.4°F (4.1°C) to 56.8°F (13.8°C), marginally warmer compared to March. Signs of a sunnier season become more apparent with longer daylight hours and a decrease in relative humidity to 79%. This slight shift is indicative of Renton transitioning from the cold to warmer months, with considerably more blue sky sightings. Moving away from the cooler end of the scale, this period also signifies no recording of snowfall, marking this month as the starting point of an extended snow-free spell.

Temperature

The shift into April in Renton brings a slight increase in the average high-temperature, moving from a cool 51.1°F (10.6°C) in March to a refreshing 56.8°F (13.8°C). In Renton, the expected average low-temperature for April is a wintry 39.4°F (4.1°C).

Humidity

In April, the average relative humidity is 79%.

Rainfall

In Renton, during April, the rain falls for 9.8 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Renton, Washington, during the entire year, the rain falls for 100.6 days and collects up to 7.6" (193mm) of precipitation.

Snowfall

In Renton, Washington, snow does not fall in April through October.

Daylight

The average length of the day in April in Renton is 13h and 40min.
On the first day of April, sunrise is at 6:45 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:19 pm PDT.

Sunshine

In April, the average sunshine is 7.8h.

UV index

In Renton, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In April, the maximum UV index of 3 translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.

Frequently asked questions

What is the usual temperature for Renton in April?

In April, the average high-temperature and low-temperature are 56.8°F (13.8°C) and 39.4°F (4.1°C) respectively.

What is the average humidity in April in Renton?

In Renton, the average relative humidity in April is 79%.

How many days does it rain in April in Renton?

In April, in Renton, Washington, the rain falls for 9.8 days. Throughout April, 0.63" (16mm) of precipitation is accumulated.

When it does not snow in Renton?

April through October are months without snowfall in Renton, Washington.

Does it snow in Renton in April?

In April, in Renton, Washington, it doesn't snow. March is the latest month when it typically snows.

How many hours of daylight does Renton have in April?

In Renton, Washington, the average day length in April is 13h and 40min.

What time are sunrise and sunset in April in Renton?

In April, on the first day of the month, sunrise is at 6:45 am and sunset at 7:39 pm. On the last day of the month, in Renton, sunrise is at 5:51 am and sunset at 8:19 pm PDT.

How long on average sun shines in April in Renton?

In April, the average sunshine duration is 7.8h.

What is the UV index intensity in April in Renton?

The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Renton, WA

Average temperature in April - Renton, WA
  • Average high temperature in April: 56.8°F

The warmest months (with the highest average high temperature) are July and August (77.4°F).
The month with the lowest average high temperature is December (43.3°F).

  • Average low temperature in April: 39.4°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

Average pressure in April
Renton, WA

Average pressure in April - Renton, WA
  • Average pressure in April: 30.04"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in April
Renton, WA

Average wind speed in April - Renton, WA
  • Average wind speed in April: 4.7mph

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in April
Renton, WA

Average humidity in April - Renton, WA
  • Average humidity in April: 79%

The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (68%).

Average rainfall in April
Renton, WA

Average rainfall in April - Renton, WA
  • Average rainfall in April: 0.63"

The wettest month (with the highest rainfall) is December (1.34").
The driest month (with the least rainfall) is July (0.12").

Average rainfall days in April
Renton, WA

Average rainfall days in April - Renton, WA
  • Average rainfall days in April: 9.8 days

The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is August (3 days).

Average snowfall in April
Renton, WA

Average snowfall in April - Renton, WA
  • Average snowfall in April: 0"

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in April
Renton, WA

Average snowfall days in April - Renton, WA
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is February (1.7 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
Renton, WA

Average daylight in April / Average sunshine in April - Renton, WA
  • Average daylight in April: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in April: 7h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).

Average sunshine days in April
Renton, WA

Average sunshine days in April - Renton, WA
  • Average sunshine days in April: 16.4 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (15.5 days).

Average UV index in April
Renton, WA

Average UV index in April - Renton, 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
Renton, WA

Average cloud cover in April - Renton, WA
  • Average cloud cover in April: 53

The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in April
Renton, WA

Average visibility in April - Renton, WA
  • Average visibility in April: 5mi

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (5mi).

Renton, Washington, USA

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