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 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
The onset of April brings a minor temperature shift, with the average high-temperature moving from a frosty 48.7°F (9.3°C) in March to a cool 54.1°F (12.3°C). Throughout April, Lummi Island anticipates an average low-temperature of 41°F (5°C).Humidity
The average relative humidity in April in Lummi Island is 80%.Rainfall
In Lummi Island, during April, the rain falls for 17.8 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, there are 178.6 rainfall days, and 37.32" (948mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows in Lummi Island. During 0.3 snowfall days, in April, Lummi Island aggregates 0.08" (2mm) of snow. In Lummi Island, during the entire year, snow falls for 10.7 days and aggregates up to 6.57" (167mm) of snow.Daylight
The average length of the day in April is 13h and 44min.On the first day of April, sunrise is at 6:46 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:25 pm PDT.
Sunshine
The average sunshine in April in Lummi Island is 8.2h.UV index
The average daily maximum UV index in April in Lummi Island is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 3 in April translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. It's recommended to limit sun exposure when its radiation is at its peak during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are the temperatures in Lummi Island in April?
What is the average humidity in April in Lummi Island?
How many days does it rain in April in Lummi Island?
What is the last month it snows in Lummi Island?
How many hours of daylight does Lummi Island have in April?
When are sunrise and sunset in April in Lummi Island?
How many hours of sunshine does Lummi Island have in April?
How high is the UV index in April in Lummi Island?
Average temperature in April
Lummi Island, WA
- Average high temperature in April: 54.1°F
The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in April: 41°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is February (35.2°F).
Average pressure in April
Lummi Island, 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
Lummi Island, 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
Lummi Island, 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
Lummi Island, WA
- Average rainfall in April: 2.8"
The wettest month (with the highest rainfall) is November (5.71").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in April
Lummi Island, WA
- Average rainfall days in April: 17.8 days
The month with the highest number of rainy days is November (20.1 days).
The month with the least rainy days is August (7.3 days).
Average snowfall in April
Lummi Island, WA
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Lummi Island, WA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.8 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
Lummi Island, 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 24min).
- 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
Lummi Island, WA
- Average sunshine days in April: 10.3 days
The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in April
Lummi Island, 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
Lummi Island, WA
- Average cloud cover in April: 48
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
Lummi Island, WA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Lummi Island, Washington, USA
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