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 signals a minor shift in the average high-temperature, moving from March's chilly 48.4°F (9.1°C) to a fresh 54.1°F (12.3°C). In April, the temperature drops to an average of 41.9°F (5.5°C) at night.Humidity
The average relative humidity in April is 79%.Rainfall
In April, in Birch Bay, the rain falls for 17.1 days. Throughout April, 3.35" (85mm) of precipitation is accumulated. In Birch Bay, during the entire year, the rain falls for 176.1 days and collects up to 43.78" (1112mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Birch Bay aggregates 0.08" (2mm) of snow. In Birch Bay, during the entire year, snow falls for 10.5 days and aggregates up to 6.77" (172mm) of snow.Ocean temperature
In April, the average ocean temperature is 45°F (7.2°C).Note: Staying in 45°F (7.2°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
In Birch Bay, the average length of the day in April is 13h and 45min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:42 pm. On the last day of April, sunrise is at 5:50 am and sunset at 8:25 pm PDT.
Sunshine
The average sunshine in April is 8h.UV index
The average daily maximum UV index in April in Birch Bay is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 3 in April translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
How cold is the water in April in Birch Bay?
How many hours of daylight does Birch Bay have in April?
When are sunrise and sunset in April?
How many hours of sunshine does Birch Bay have in April?
What is the UV index reading in April?
Average temperature in April
Birch Bay, WA
- Average high temperature in April: 54.1°F
The warmest month (with the highest average high temperature) is August (70°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in April: 41.9°F
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (35.8°F).
Average pressure in April
Birch Bay, WA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in April
Birch Bay, WA
- Average wind speed in April: 5.5mph
The windiest months (with the highest average wind speed) are November and December (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in April
Birch Bay, WA
- Average humidity in April: 79%
The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is July (74%).
Average rainfall in April
Birch Bay, WA
- Average rainfall in April: 3.35"
The wettest month (with the highest rainfall) is November (7.13").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in April
Birch Bay, WA
- Average rainfall days in April: 17.1 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
Birch Bay, WA
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Birch Bay, WA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Birch Bay, WA
- Average sea temperature in April: 45°F
The best months for swimming (with the highest average sea temperature) are August and September (52.6°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).
Average daylight in April /
Average sunshine in April
Birch Bay, WA
- Average daylight in April: 13h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in April: 8h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days in April
Birch Bay, WA
- Average sunshine days in April: 10.9 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is November (8.8 days).
Average UV index in April
Birch Bay, 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
Birch Bay, WA
- Average cloud cover in April: 49
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in April
Birch Bay, WA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Birch Bay, Washington, USA
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