April weather forecastClayton, WA
April
Weather in April
April in Clayton, Washington, is a fresh spring month, with temperature in the range of an average low of 33.6°F (0.9°C) and an average high of 54.7°F (12.6°C).Temperature
The start of April is characterized by an increase in the average high-temperature, transitioning from a frosty 44.8°F (7.1°C) in March to a cool 54.7°F (12.6°C). Clayton records an average low of 33.6°F (0.9°C) throughout the nights in April.Humidity
The average relative humidity in April is 71%.Rainfall
In Clayton, in April, it is raining for 15.4 days, with typically 1.42" (36mm) of accumulated precipitation. In Clayton, Washington, during the entire year, the rain falls for 124.9 days and collects up to 17.44" (443mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Clayton, in April, during 2.8 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Clayton, during the entire year, snow falls for 69.2 days and aggregates up to 42.99" (1092mm) of snow.Daylight
The average length of the day in April is 13h and 42min.On the first day of April in Clayton, sunrise is at 6:26 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:02 pm PDT.
Sunshine
In April, the average sunshine is 8.9h.UV index
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: A maximum high UV index of 3 in April translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Clayton, WA
- Average high temperature in April: 54.7°F
The warmest month (with the highest average high temperature) is August (84°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in April: 33.6°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in April
Clayton, WA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in April
Clayton, WA
- Average wind speed in April: 5.6mph
The windiest month (with the highest average wind speed) is April (5.6mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in April
Clayton, WA
- Average humidity in April: 71%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (43%).
Average rainfall in April
Clayton, WA
- Average rainfall in April: 1.42"
The wettest month (with the highest rainfall) is January (2.4").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in April
Clayton, WA
- Average rainfall days in April: 15.4 days
The month with the highest number of rainy days is March (16.2 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in April
Clayton, WA
- Average snowfall in April: 1.02"
The month with the highest snowfall is January (13.23").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Clayton, WA
- Average snowfall days in April: 2.8 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Clayton, 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 54min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in April
Clayton, WA
- Average sunshine days in April: 12.1 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is March (9.7 days).
Average UV index in April
Clayton, WA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in April
Clayton, WA
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in April
Clayton, WA
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
