April weather forecastWalnut Grove, WA
April
Weather in April
April in Walnut Grove, Washington, is a mild spring month, with temperature in the range of an average high of 58.1°F (14.5°C) and an average low of 39.4°F (4.1°C).Temperature
As April sets, the average high-temperature shows a slight increase, moving up from a fresh 51.8°F (11°C) in March to a refreshing 58.1°F (14.5°C). During April, Walnut Grove's temperature falls to a steady low-temperature average of 39.4°F (4.1°C).Humidity
The average relative humidity in April is 79%.Rainfall
In Walnut Grove, in April, it is raining for 19.4 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, there are 177.1 rainfall days, and 34.29" (871mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in April is 13h and 34min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:39 pm. On the last day of April, sunrise is at 5:58 am and sunset at 8:16 pm PDT.
Sunshine
The average sunshine in April in Walnut Grove is 7.6h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 during April translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Walnut Grove, WA
- Average high temperature in April: 58.1°F
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in April: 39.4°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure in April
Walnut Grove, WA
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in April
Walnut Grove, WA
- Average wind speed in April: 4.7mph
The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in April
Walnut Grove, WA
- Average humidity in April: 79%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in April
Walnut Grove, WA
- Average rainfall in April: 3.19"
The wettest month (with the highest rainfall) is December (5.08").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in April
Walnut Grove, WA
- Average rainfall days in April: 19.4 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.9 days).
Average snowfall in April
Walnut Grove, 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
Walnut Grove, WA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Walnut Grove, WA
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 7h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 6min).
Average sunshine days in April
Walnut Grove, WA
- Average sunshine days in April: 8.8 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in April
Walnut Grove, 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 January, February, November and December (UV index 2).
Average cloud cover in April
Walnut Grove, WA
- Average cloud cover in April: 54
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in April
Walnut Grove, WA
- Average visibility in April: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
