April weather forecast
Preston, WA

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Weather in April

April in Preston, Washington, is a cool spring month, with temperature in the range of an average high of 52.9°F (11.6°C) and an average low of 35.4°F (1.9°C).

Temperature

A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from a chilly 46.9°F (8.3°C) in March to a cool 52.9°F (11.6°C). Preston witnesses a consistent average low-temperature of 35.4°F (1.9°C) throughout April.

Humidity

In April, the average relative humidity is 83%.

Rainfall

In Preston, during April, the rain falls for 19.2 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Preston, Washington, during the entire year, the rain falls for 184.9 days and collects up to 39.96" (1015mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Preston. April is the last month it regularly snows in Preston. During 0.8 snowfall days, in April, Preston aggregates 0.47" (12mm) of snow. Throughout the year, there are 17.4 snowfall days, and 11.38" (289mm) of snow is accumulated.

Daylight

In April, the average length of the day is 13h and 40min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:38 pm. On the last day of April, in Preston, sunrise is at 5:50 am and sunset at 8:18 pm PDT.

Sunshine

The average sunshine in April is 7.3h.

UV index

In Preston, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In April, the maximum UV index of 3 suggests this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures?

An average high-temperature, in April, in Preston, is 52.9°F (11.6°C) and the average low-temperature is 35.4°F (1.9°C).

What is the average humidity in April?

In April, the average relative humidity is 83%.

How much does it rain in April?

In Preston, in April, it is raining for 19.2 days, with typically 3.19" (81mm) of accumulated precipitation.

What is the last month it snows?

April is the last month it regularly snows. During 0.8 snowfall days, in April, Preston aggregates 0.47" (12mm) of snow.

How many hours of daylight does Preston have in April?

The average day length in April is 13h and 40min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:44 am and sunset at 7:38 pm. On the last day of the month, in Preston, sunrise is at 5:50 am and sunset at 8:18 pm PDT.

How many hours of sunshine does Preston have in April?

In April, the average sunshine duration is 7.3h.

What is the UV index reading in April?

In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Preston, WA

Average temperature in April - Preston, WA
  • Average high temperature in April: 52.9°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (39.7°F).

  • Average low temperature in April: 35.4°F

The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).

Average pressure in April
Preston, WA

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

Average wind speed in April
Preston, WA

Average wind speed in April - Preston, WA
  • Average wind speed in April: 3.9mph

The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

Average humidity in April
Preston, WA

Average humidity in April - Preston, WA
  • Average humidity in April: 83%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (71%).

Average rainfall in April
Preston, WA

Average rainfall in April - Preston, WA
  • Average rainfall in April: 3.19"

The wettest month (with the highest rainfall) is January (6.1").
The driest months (with the least rainfall) are July and August (0.59").

Average rainfall days in April
Preston, WA

Average rainfall days in April - Preston, WA
  • Average rainfall days in April: 19.2 days

The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.4 days).

Average snowfall in April
Preston, WA

Average snowfall in April - Preston, WA
  • Average snowfall in April: 0.47"

The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
Preston, WA

Average snowfall days in April - Preston, WA
  • Average snowfall days in April: 0.8 days

The month with the highest number of snowfall days is February (5.4 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
Preston, WA

Average daylight in April / Average sunshine in April - Preston, 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 2min

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: 3h and 54min).

Average sunshine days in April
Preston, WA

Average sunshine days in April - Preston, WA
  • Average sunshine days in April: 8.7 days

The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is February (7.8 days).

Average UV index in April
Preston, WA

Average UV index in April - Preston, WA
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in April
Preston, WA

Average cloud cover in April - Preston, WA
  • Average cloud cover in April: 57

The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in April
Preston, WA

Average visibility in April - Preston, WA
  • Average visibility in April: 4mi

The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).

Preston, Washington, USA

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