April weather forecastChinook, WA
April
Weather in April
April in Chinook, Washington, is a cool spring month, with an average temperature ranging between max 51.8°F (11°C) and min 45.1°F (7.3°C).Temperature
Chinook's weather in April displays an average high-temperature of a cool 51.8°F (11°C), showing minor disparity from March's 49.5°F (9.7°C). Chinook's nighttime temperatures in April see a subtle dip to an average of 45.1°F (7.3°C).Humidity
The least humid month is April, with an average relative humidity of 80%.Rainfall
In Chinook, in April, during 16.1 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Chinook, during the entire year, the rain falls for 165.1 days and collects up to 19.92" (506mm) of precipitation.Snowfall
In Chinook, snow does not fall in March through August, October through December.Daylight
In April, the average length of the day is 13h and 36min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of April, sunrise is at 6:01 am and sunset at 8:23 pm PDT.
Sunshine
In Chinook, the average sunshine in April is 7.4h.UV index
In Chinook, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Chinook, WA
- Average high temperature in April: 51.8°F
The warmest month (with the highest average high temperature) is August (63.9°F).
The month with the lowest average high temperature is December (46.8°F).
- Average low temperature in April: 45.1°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (41.5°F).
Average pressure in April
Chinook, WA
- Average pressure in April: 30.07"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in April
Chinook, WA
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in April
Chinook, WA
- Average humidity in April: 80%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is April (80%).
Average rainfall in April
Chinook, WA
- Average rainfall in April: 1.42"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in April
Chinook, WA
- Average rainfall days in April: 16.1 days
The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is August (6.7 days).
Average snowfall in April
Chinook, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are March, April, May, June, July, August, October, November and December (0").
Average snowfall days in April
Chinook, WA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in April /
Average sunshine in April
Chinook, WA
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 7h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Chinook, WA
- Average sunshine days in April: 10.9 days
The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is November (8.9 days).
Average UV index in April
Chinook, WA
- Average UV index in April: 3
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in April
Chinook, WA
- Average cloud cover in April: 53
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in April
Chinook, WA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
