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 introduces a subtle rise in the average high-temperature, nudging from a chilly 48.6°F (9.2°C) in March to a moderate 57.4°F (14.1°C). In April, the average low-temperature in Hillside Siding records at a cold 38.7°F (3.7°C) during the nights.Humidity
In Hillside Siding, the average relative humidity in April is 59%.Rainfall
In Hillside Siding, Washington, in April, during 9 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, there are 87.6 rainfall days, and 5.94" (151mm) of precipitation is accumulated.Snowfall
January through April, September, November and December are months with snowfall. April is the last month it regularly snows in Hillside Siding. During 0.3 snowfall days, in April, Hillside Siding aggregates 0.04" (1mm) of snow. Throughout the year, there are 19.9 snowfall days, and 8.62" (219mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 38min.On the first day of April in Hillside Siding, Washington, sunrise is at 6:39 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:11 pm PDT.
Sunshine
In April, the average sunshine is 11h.UV index
The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during April translates into the following guidance:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the temperature in April in Hillside Siding?
What is the average humidity in April in Hillside Siding?
How much does it rain in Hillside Siding in April?
What is the last month it snows in Hillside Siding?
How many hours of daylight does Hillside Siding have in April?
When are sunrise and sunset in April in Hillside Siding?
How many hours of sunshine does Hillside Siding have in April?
How high is the UV index in April in Hillside Siding?
Average temperature in April
Hillside Siding, WA
- Average high temperature in April: 57.4°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in April: 38.7°F
The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in April
Hillside Siding, WA
- Average pressure in April: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in April
Hillside Siding, WA
- Average wind speed in April: 6.8mph
The windiest month (with the highest average wind speed) is June (7.4mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in April
Hillside Siding, WA
- Average humidity in April: 59%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (41%).
Average rainfall in April
Hillside Siding, WA
- Average rainfall in April: 0.35"
The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in April
Hillside Siding, WA
- Average rainfall days in April: 9 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is July (2.3 days).
Average snowfall in April
Hillside Siding, WA
- Average snowfall in April: 0.04"
The month with the highest snowfall is December (3.07").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in April
Hillside Siding, WA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is December (5.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in April /
Average sunshine in April
Hillside Siding, WA
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in April
Hillside Siding, WA
- Average sunshine days in April: 18.5 days
The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is February (15.5 days).
Average UV index in April
Hillside Siding, WA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Hillside Siding, WA
- Average cloud cover in April: 27
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in April
Hillside Siding, 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).
Hillside Siding, Washington, USA
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