April weather forecast
Richland, WA

Weather in April

April in Richland, Washington, is a comfortable spring month, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 43.2°F (6.2°C).

Temperature

In Richland, the average high-temperature in April slightly increases from a fresh 54.7°F (12.6°C) in March to an enjoyable 63.3°F (17.4°C). The average low-temperature, is 43.2°F (6.2°C).

Humidity

In Richland, Washington, the average relative humidity in April is 53%.

Rainfall

In April, in Richland, the rain falls for 9.9 days. Throughout April, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 100.2 rainfall days, and 7.05" (179mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Richland.

Daylight

In Richland, the average length of the day in April is 13h and 36min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:25 pm. On the last day of April, in Richland, sunrise is at 5:44 am and sunset at 8:04 pm PDT.

Sunshine

In April, the average sunshine in Richland is 10.2h.

UV index

In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in April interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in April in Richland?

In Richland, Washington, in April, the average high-temperature is 63.3°F (17.4°C), and the average low-temperature is 43.2°F (6.2°C).

What is the average humidity in April in Richland?

In April, the average relative humidity is 53%.

How much does it rain in Richland in April?

In April, in Richland, the rain falls for 9.9 days. Throughout April, 0.51" (13mm) of precipitation is accumulated.

When it does not snow in Richland?

In Richland, snow does not fall in April through October.

Does it snow in Richland in April?

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

How many hours of daylight does Richland have in April?

In April, the average day length is 13h and 36min.

When are sunrise and sunset in April in Richland?

On the first day of April in Richland, sunrise is at 6:36 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:04 pm PDT.

How long on average sun shines in April in Richland?

The average sunshine duration in April in Richland is 10.2h.

What is the UV index reading in April in Richland?

In Richland, Washington, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Richland, WA

Average temperature in April - Richland, WA
  • Average high temperature in April: 63.3°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.1°F).

  • Average low temperature in April: 43.2°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (27.5°F).

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Average pressure in April
Richland, WA

Average pressure in April - Richland, WA
  • Average pressure in April: 29.99"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in April
Richland, WA

Average wind speed in April - Richland, WA
  • Average wind speed in April: 8.3mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).

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Average humidity in April
Richland, WA

Average humidity in April - Richland, WA
  • Average humidity in April: 53%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is July (35%).

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Average rainfall in April
Richland, WA

Average rainfall in April - Richland, WA
  • Average rainfall in April: 0.51"

The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and September (0.2").

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Average rainfall days in April
Richland, WA

Average rainfall days in April - Richland, WA
  • Average rainfall days in April: 9.9 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (3.5 days).

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Average snowfall in April
Richland, WA

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

The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in April
Richland, WA

Average snowfall days in April - Richland, WA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is December (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
Richland, WA

Average daylight in April / Average sunshine in April - Richland, WA
  • Average daylight in April: 13h and 36min

The month with the longest days is June (Average daylight: 15h and 44min).
The month with the shortest days is December (Average daylight: 8h and 41min).

  • Average sunshine in April: 10h and 12min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in April
Richland, WA

Average sunshine days in April - Richland, WA
  • Average sunshine days in April: 17 days

The month with the most sunshine days is July (25.7 days).
The months with the least sunshine days are February and March (15.3 days).

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Average UV index in April
Richland, WA

Average UV index in April - Richland, WA
  • Average UV index in April: 4

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in April
Richland, WA

Average cloud cover in April - Richland, WA
  • Average cloud cover in April: 32

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in April
Richland, WA

Average visibility in April - Richland, WA
  • 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).

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