April weather forecastPreston, WA
April
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 13h and 42min
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 18min
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: 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: 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: 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: 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).
