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 is noted with a slight increase in the average high-temperature, moving from a frosty 48°F (8.9°C) in March to a cool 54°F (12.2°C). During April, the average low-temperature is recorded at a wintry 40.6°F (4.8°C).Humidity
The average relative humidity in April in Bellingham is 80%.Rainfall
In Bellingham, Washington, in April, during 16.9 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Bellingham, during the entire year, the rain falls for 158 days and collects up to 18.7" (475mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Bellingham. April is the last month it regularly snows in Bellingham. During 0.2 snowfall days, in April, Bellingham aggregates 0.12" (3mm) of snow. In Bellingham, during the entire year, snow falls for 9.4 days and aggregates up to 4.65" (118mm) of snow.Ocean temperature
In Bellingham, Washington, the average seawater temperature in April is 45°F (7.2°C).Note: Swimming in 45°F (7.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.
Daylight
In April, the average length of the day is 13h and 44min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:41 pm. On the last day of April, in Bellingham, sunrise is at 5:49 am and sunset at 8:24 pm PDT.
Sunshine
In Bellingham, the average sunshine in April is 8.1h.UV index
In Bellingham, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 3 in April interprets into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Bellingham?
What is the average humidity in April in Bellingham?
How much does it rain in Bellingham in April?
What is the last month it snows in Bellingham?
How cold is the water in April in Bellingham?
What is the average length of the day in April in Bellingham?
When are sunrise and sunset in April in Bellingham?
How many hours of sunshine does Bellingham have in April?
What is the UV index intensity in April in Bellingham?
Average temperature in April
Bellingham, WA
- Average high temperature in April: 54°F
The warmest months (with the highest average high temperature) are July and August (70.3°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in April: 40.6°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).
Average pressure in April
Bellingham, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in April
Bellingham, WA
- Average wind speed in April: 5.2mph
The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in April
Bellingham, WA
- Average humidity in April: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (74%).
Average rainfall in April
Bellingham, WA
- Average rainfall in April: 1.65"
The wettest month (with the highest rainfall) is November (2.64").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in April
Bellingham, WA
- Average rainfall days in April: 16.9 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (7.1 days).
Average snowfall in April
Bellingham, WA
- Average snowfall in April: 0.12"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Bellingham, WA
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Bellingham, WA
- Average sea temperature in April: 44.9°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 (44.5°F).
Average daylight in April /
Average sunshine in April
Bellingham, WA
- Average daylight in April: 13h and 4min
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 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in April
Bellingham, WA
- Average sunshine days in April: 10.8 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in April
Bellingham, WA
- Average UV index in April: 3
The month with the highest UV index is 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
Bellingham, WA
- Average cloud cover in April: 49
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in April
Bellingham, 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).
Bellingham, Washington, USA
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