April weather forecastSnohomish, WA
April
Weather in April
April in Snohomish, Washington, is a cool spring month, with an average temperature varying between 54.9°F (12.7°C) and 39.2°F (4°C).Temperature
April's arrival coincides with a marginal rise in the average high-temperature, moving from March's frosty 49.5°F (9.7°C) to a cool 54.9°F (12.7°C). The nights of April anticipate an average low-temperature of 39.2°F (4°C).Humidity
The average relative humidity in April is 80%.Rainfall
In Snohomish, in April, it is raining for 15 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, there are 140.3 rainfall days, and 15.12" (384mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Snohomish aggregates 0.04" (1mm) of snow. Throughout the year, there are 7.7 snowfall days, and 3.5" (89mm) of snow is accumulated.Daylight
The average length of the day in April in Snohomish is 13h and 41min.On the first day of April, sunrise is at 6:44 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:20 pm PDT.
Sunshine
The average sunshine in April is 7.8h.UV index
In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In April, the maximum UV index of 3 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Snohomish, WA
- Average high temperature in April: 54.9°F
The warmest month (with the highest average high temperature) is August (74.7°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in April: 39.2°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in April
Snohomish, WA
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in April
Snohomish, WA
- Average wind speed in April: 4.5mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in April
Snohomish, WA
- Average humidity in April: 80%
The months with the highest relative humidity are January, February, November and December (85%).
The month with the lowest relative humidity is July (72%).
Average rainfall in April
Snohomish, WA
- Average rainfall in April: 1.38"
The wettest month (with the highest rainfall) is December (2.17").
The driest month (with the least rainfall) is August (0.28").
Average rainfall days in April
Snohomish, WA
- Average rainfall days in April: 15 days
The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in April
Snohomish, WA
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Snohomish, WA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (2.7 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
Snohomish, 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: 7h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in April
Snohomish, WA
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is August (24 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in April
Snohomish, 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
Snohomish, WA
- Average cloud cover in April: 52
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in April
Snohomish, WA
- Average visibility in April: 5mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, November and December (5mi).
