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
April's arrival is marked by an increase in the average high-temperature, moving from a frosty 46°F (7.8°C) in March to a refreshing 57°F (13.9°C). April brings with it a nighttime average temperature of 37.9°F (3.3°C) in Coulee Dam.Humidity
The average relative humidity in April is 59%.Rainfall
In Coulee Dam, in April, during 11.1 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Coulee Dam, during the entire year, the rain falls for 102.1 days and collects up to 9.65" (245mm) of precipitation.Snowfall
January through April, September through December are months with snowfall. April is the last month it regularly snows. During 0.8 snowfall days, in April, Coulee Dam aggregates 0.39" (10mm) of snow. Throughout the year, in Coulee Dam, Washington, there are 33.4 snowfall days, and 14.65" (372mm) of snow is accumulated.Daylight
The average length of the day in April in Coulee Dam is 13h and 42min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:26 pm. On the last day of April, sunrise is at 5:37 am and sunset at 8:08 pm PDT.
Sunshine
The average sunshine in April in Coulee Dam is 10.1h.UV index
In April, the average daily maximum UV index in Coulee Dam is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during April translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What is the average April temperature in Coulee Dam?
What is the average humidity in April in Coulee Dam?
How many days does it rain in April in Coulee Dam?
What is the last month it snows in Coulee Dam?
What is the average length of the day in April in Coulee Dam?
When is the sunrise / sunset in April in Coulee Dam?
How long on average sun shines in April in Coulee Dam?
What is the UV index intensity in April in Coulee Dam?
Average temperature in April
Coulee Dam, WA
- Average high temperature in April: 57°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (31.6°F).
- Average low temperature in April: 37.9°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in April
Coulee Dam, WA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in April
Coulee Dam, WA
- Average wind speed in April: 7mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in April
Coulee Dam, WA
- Average humidity in April: 59%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (36%).
Average rainfall in April
Coulee Dam, WA
- Average rainfall in April: 0.79"
The wettest months (with the highest rainfall) are May and December (1.18").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in April
Coulee Dam, WA
- Average rainfall days in April: 11.1 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in April
Coulee Dam, WA
- Average snowfall in April: 0.39"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in April
Coulee Dam, WA
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Coulee Dam, WA
- Average daylight in April: 13h and 4min
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: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in April
Coulee Dam, WA
- Average sunshine days in April: 15.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (14.7 days).
Average UV index in April
Coulee Dam, WA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in April
Coulee Dam, WA
- Average cloud cover in April: 33
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in April
Coulee Dam, WA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Coulee Dam, Washington, USA
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