April weather forecastChimacum, WA
April
Weather in April
April in Chimacum, Washington, is a cool spring month, with an average temperature varying between 52.3°F (11.3°C) and 43°F (6.1°C).Temperature
The arrival of April sees an average high-temperature of a cool 52.3°F (11.3°C), hardly diverging from March's 47.8°F (8.8°C). During April, the temperature in Chimacum tends to dip to an average of 43°F (6.1°C) at night.Humidity
In Chimacum, Washington, the average relative humidity in April is 79%.Rainfall
In Chimacum, during April, the rain falls for 18.4 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, in Chimacum, there are 180.3 rainfall days, and 21.85" (555mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows in Chimacum. During 0.2 snowfall days, in April, Chimacum aggregates 0.04" (1mm) of snow. Throughout the year, in Chimacum, there are 7.8 snowfall days, and 4.84" (123mm) of snow is accumulated.Daylight
In April, the average length of the day in Chimacum is 13h and 42min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:42 pm. On the last day of April, sunrise is at 5:52 am and sunset at 8:23 pm PDT.
Sunshine
In April, the average sunshine is 8.6h.UV index
In Chimacum, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 3 in April transforms into this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Chimacum, WA
- Average high temperature in April: 52.3°F
The warmest month (with the highest average high temperature) is August (67.8°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in April: 43°F
The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is February (37.4°F).
Average pressure in April
Chimacum, WA
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.01"Hg).
Average wind speed in April
Chimacum, WA
- Average wind speed in April: 5.9mph
The windiest month (with the highest average wind speed) is November (7.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in April
Chimacum, WA
- Average humidity in April: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (75%).
Average rainfall in April
Chimacum, WA
- Average rainfall in April: 1.73"
The wettest month (with the highest rainfall) is November (2.91").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in April
Chimacum, WA
- Average rainfall days in April: 18.4 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.6 days).
Average snowfall in April
Chimacum, WA
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Chimacum, WA
- Average snowfall days in April: 0.2 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 daylight in April /
Average sunshine in April
Chimacum, WA
- Average daylight in April: 13h and 42min
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 30min).
- Average sunshine in April: 8h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in April
Chimacum, WA
- Average sunshine days in April: 9.1 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.2 days).
Average UV index in April
Chimacum, 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
Chimacum, WA
- Average cloud cover in April: 45
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in April
Chimacum, 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).





