April weather forecast
Union Gap, WA

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Weather in April

April is a refreshing spring month in Union Gap, Washington, with an average temperature varying between 40.1°F (4.5°C) and 59.2°F (15.1°C).

Temperature

An increase in the average high-temperature marks April, moving from March's chilly 49.5°F (9.7°C) to a mild 59.2°F (15.1°C). The average low-temperature, in April, is an icy 40.1°F (4.5°C).

Humidity

In April, the average relative humidity is 57%.

Rainfall

In Union Gap, during April, the rain falls for 7.8 days and regularly aggregates up to 0.31" (8mm) of precipitation. Throughout the year, in Union Gap, there are 82.2 rainfall days, and 5.43" (138mm) of precipitation is accumulated.

Snowfall

In Union Gap, Washington, snow does not fall in April through August and October.

Daylight

The average length of the day in April in Union Gap is 13h and 37min.
On the first day of April, sunrise is at 6:39 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:10 pm PDT.

Sunshine

The average sunshine in April is 11h.

UV index

In April, the average daily maximum UV index in Union Gap, Washington, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In April, an average UV index of 4 transforms into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What is the temperature in April in Union Gap?

The high-temperature, in April, in Union Gap, records 59.2°F (15.1°C), while the low-temperature is 40.1°F (4.5°C).

What is the average humidity in April in Union Gap?

The average relative humidity in April in Union Gap, Washington, is 57%.

How many days does it rain in April in Union Gap?

In Union Gap, Washington, during April, the rain falls for 7.8 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When it does not snow in Union Gap?

April through August and October are months without snowfall in Union Gap.

Does it snow in Union Gap in April?

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

What is the average length of the day in April in Union Gap?

The average day length in April is 13h and 37min.

When is the sunrise / sunset in April in Union Gap?

In April, on the first day of the month, sunrise is at 6:39 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:10 pm PDT.

How long on average sun shines in April in Union Gap?

In April, the average sunshine duration is 11h.

What is the UV index intensity in April in Union Gap?

The average daily maximum UV index in April in Union Gap, Washington, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Union Gap, WA

Average temperature in April - Union Gap, WA
  • Average high temperature in April: 59.2°F

The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).

  • Average low temperature in April: 40.1°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).

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Average pressure in April
Union Gap, WA

Average pressure in April - Union Gap, WA
  • Average pressure in April: 30.01"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in April
Union Gap, WA

Average wind speed in April - Union Gap, WA
  • Average wind speed in April: 6.8mph

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).

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Average humidity in April
Union Gap, WA

Average humidity in April - Union Gap, WA
  • Average humidity in April: 57%

The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).

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Average rainfall in April
Union Gap, WA

Average rainfall in April - Union Gap, WA
  • Average rainfall in April: 0.31"

The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in April
Union Gap, WA

Average rainfall days in April - Union Gap, WA
  • Average rainfall days in April: 7.8 days

The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).

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Average snowfall in April
Union Gap, WA

Average snowfall in April - Union Gap, WA
  • Average snowfall in April: 0"

The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").

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Average snowfall days in April
Union Gap, WA

Average snowfall days in April - Union Gap, WA
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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Average daylight in April /
Average sunshine in April
Union Gap, WA

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in April: 11h and 0min

The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in April
Union Gap, WA

Average sunshine days in April - Union Gap, WA
  • Average sunshine days in April: 18.8 days

The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).

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Average UV index in April
Union Gap, WA

Average UV index in April - Union Gap, 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
Union Gap, WA

Average cloud cover in April - Union Gap, WA
  • Average cloud cover in April: 27

The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).

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Average visibility in April
Union Gap, WA

Average visibility in April - Union Gap, WA
  • Average visibility in April: 6mi

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

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Union Gap, Washington, USA

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