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
Waller's transition into April sees a mild rise in the average high-temperature, edging from a frosty 49.8°F (9.9°C) in March to a fresh 55.2°F (12.9°C). An average low-temperature of 38.3°F (3.5°C) is observed during the April nights.Humidity
In April, the average relative humidity is 80%.Rainfall
In Waller, Washington, during April, the rain falls for 18.4 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Waller, during the entire year, the rain falls for 183.4 days and collects up to 32.48" (825mm) of precipitation.Snowfall
In Waller, snow does not fall in April through October.Daylight
The average length of the day in April in Waller, Washington, is 13h and 39min.On the first day of April in Waller, sunrise is at 6:46 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:19 pm PDT.
Sunshine
The average sunshine in April in Waller, Washington, is 8h.UV index
In Waller, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the maximum UV index of 3 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What are April temperatures in Waller?
What is the average humidity in April in Waller?
How much does it rain in Waller in April?
When it does not snow in Waller?
Does it snow in Waller in April?
What is the average length of the day in April in Waller?
When are sunrise and sunset in April in Waller?
How long on average sun shines in April in Waller?
How high is the UV index in April in Waller?
Average temperature in April
Waller, WA
- Average high temperature in April: 55.2°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in April: 38.3°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in April
Waller, WA
- Average pressure in April: 30.05"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
Waller, WA
- Average wind speed in April: 4.4mph
The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in April
Waller, WA
- Average humidity in April: 80%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in April
Waller, WA
- Average rainfall in April: 2.68"
The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in April
Waller, WA
- Average rainfall days in April: 18.4 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in April
Waller, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Waller, WA
- Average snowfall days in April: 0.1 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
Waller, WA
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in April
Waller, WA
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in April
Waller, 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, October, November and December (UV index 2).
Average cloud cover in April
Waller, WA
- Average cloud cover in April: 52
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
Waller, WA
- Average visibility in April: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
Waller, Washington, USA
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