Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival brings a modest temperature shift, moving from a frosty 48.9°F (9.4°C) in March to a cool 54.3°F (12.4°C). Langley throughout April, records an average low-temperature of 40.3°F (4.6°C).Humidity
The average relative humidity in April is 80%.Rainfall
In April, the rain falls for 18.3 days. Throughout April, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 179.1 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.2 snowfall days, in April, Langley aggregates 0.04" (1mm) of snow. In Langley, during the entire year, snow falls for 8.9 days and aggregates up to 6.1" (155mm) of snow.Ocean temperature
January through April, with an average ocean temperature of 45.1°F (7.3°C), are months with the coldest seawater.Note: Swimming in 45.1°F (7.3°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
The average length of the day in April is 13h and 42min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:40 pm. On the last day of April, sunrise is at 5:51 am and sunset at 8:22 pm PDT.
Sunshine
In Langley, the average sunshine in April is 7.8h.UV index
In Langley, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In April, a daily UV index of 3 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Langley in April?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
What are the months with the coldest ocean?
What is the water temperature in April?
How many hours of daylight does Langley have in April?
When is the sunrise / sunset in April in Langley?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Langley, WA
- Average high temperature in April: 54.3°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in April: 40.3°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in April
Langley, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in April
Langley, WA
- Average wind speed in April: 5mph
The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in April
Langley, WA
- Average humidity in April: 80%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall in April
Langley, WA
- Average rainfall in April: 2.64"
The wettest month (with the highest rainfall) is November (4.06").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in April
Langley, WA
- Average rainfall days in April: 18.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in April
Langley, WA
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Langley, WA
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Langley, WA
- Average sea temperature in April: 45.2°F
The best month for swimming (with the highest average sea temperature) is August (53.3°F).
The coldest months (with the lowest average sea temperature) are February and March (45.1°F).
Average daylight in April /
Average sunshine in April
Langley, WA
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in April: 7h and 5min
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: 4h and 12min).
Average sunshine days in April
Langley, WA
- Average sunshine days in April: 9.2 days
The month with the most sunshine days is August (23.1 days).
The months with the least sunshine days are February and November (8.6 days).
Average UV index in April
Langley, WA
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Langley, WA
- Average cloud cover in April: 51
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in April
Langley, WA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Langley, Washington, USA
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