April weather forecastManchester, WA
April
Weather in April
April is a refreshing spring month in Manchester, Washington, with an average temperature varying between 39.9°F (4.4°C) and 56.7°F (13.7°C).Temperature
In Manchester, the onset of April comes with a modest high-temperature shift, transitioning from March's cool 50.9°F (10.5°C) to a moderate 56.7°F (13.7°C). Manchester observes an average low-temperature of 39.9°F (4.4°C) during April nights.Humidity
The average relative humidity in April is 79%.Rainfall
In Manchester, in April, it is raining for 13.3 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 138.9 rainfall days, and 12.24" (311mm) of precipitation is accumulated.Snowfall
In Manchester, snow does not fall in April through October.Ocean temperature
In Manchester, the average seawater temperature in April is 45.9°F (7.7°C).Note: To swim in 45.9°F (7.7°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.
Daylight
The average length of the day in April is 13h and 40min.On the first day of April, sunrise is at 6:46 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:21 pm PDT.
Sunshine
In Manchester, the average sunshine in April is 8.1h.UV index
The average daily maximum UV index in April in Manchester is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during April leads to these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. When the Sun is at its strongest around midday, find shade and limit exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Manchester, WA
- Average high temperature in April: 56.7°F
The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (43.2°F).
- Average low temperature in April: 39.9°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 (34.9°F).
Average pressure in April
Manchester, WA
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in April
Manchester, WA
- Average wind speed in April: 5mph
The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity in April
Manchester, WA
- Average humidity in April: 79%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in April
Manchester, WA
- Average rainfall in April: 0.79"
The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in April
Manchester, WA
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).
Average snowfall in April
Manchester, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Manchester, WA
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Manchester, WA
- Average sea temperature in April: 45.8°F
The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).
Average daylight in April /
Average sunshine in April
Manchester, 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: 8h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in April
Manchester, WA
- Average sunshine days in April: 13.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in April
Manchester, WA
- Average UV index in April: 4
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
Manchester, WA
- Average cloud cover in April: 50
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in April
Manchester, WA
- Average visibility in April: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
