April weather forecastFrederickson, WA
April
Weather in April
April in Frederickson, Washington, is a moderate spring month, with an average temperature fluctuating between 38.3°F (3.5°C) and 55.9°F (13.3°C).Temperature
The shift into April is marked by a modest rise in the average high-temperature, moving from March's fresh 50.4°F (10.2°C) to a mild 55.9°F (13.3°C). In April, Frederickson experiences an average nighttime temperature of 38.3°F (3.5°C).Humidity
In Frederickson, the average relative humidity in April is 80%.Rainfall
In Frederickson, in April, it is raining for 17.6 days, with typically 2.52" (64mm) of accumulated precipitation. In Frederickson, during the entire year, the rain falls for 172.9 days and collects up to 32.28" (820mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, Frederickson aggregates 0.04" (1mm) of snow. Throughout the year, there are 10.3 snowfall days, and 5.94" (151mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 39min.On the first day of April, 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
In April, the average sunshine is 7.7h.UV index
In Frederickson, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 3 in April translates into this advice:
Take precautions - Protection against skin and eye damage is obliged. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Frederickson, WA
- Average high temperature in April: 55.9°F
The warmest month (with the highest average high temperature) is August (77.2°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 (51.3°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in April
Frederickson, WA
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in April
Frederickson, WA
- Average wind speed in April: 4.6mph
The windiest months (with the highest average wind speed) are January and March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in April
Frederickson, WA
- Average humidity in April: 80%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in April
Frederickson, WA
- Average rainfall in April: 2.52"
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
Frederickson, WA
- Average rainfall days in April: 17.6 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in April
Frederickson, WA
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Frederickson, WA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (4.1 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
Frederickson, WA
- Average daylight in April: 13h and 36min
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: 7h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in April
Frederickson, WA
- Average sunshine days in April: 10.1 days
The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is November (9.3 days).
Average UV index in April
Frederickson, 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
Frederickson, WA
- Average cloud cover in April: 53
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Frederickson, 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 and February (4mi).
