April weather forecastOkanogan, WA
April
Weather in April
April is a fresh spring month in Okanogan, Washington, with temperature in the range of an average low of 33.8°F (1°C) and an average high of 54.3°F (12.4°C).Temperature
The onset of April brings a temperature shift, with the average high-temperature moving from a chilly 43°F (6.1°C) in March to a fresh 54.3°F (12.4°C). During April, Okanogan's temperature averages to a cold 33.8°F (1°C) at night.Humidity
In Okanogan, Washington, the average relative humidity in April is 64%.Rainfall
In Okanogan, during April, the rain falls for 9.3 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, in Okanogan, there are 90.2 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows in Okanogan. During 0.4 snowfall days, in April, Okanogan aggregates 0.2" (5mm) of snow. Throughout the year, in Okanogan, there are 25.5 snowfall days, and 10.12" (257mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 43min.On the first day of April, sunrise is at 6:34 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:11 pm PDT.
Sunshine
The average sunshine in April in Okanogan is 10.6h.UV index
In April, the average daily maximum UV index in Okanogan is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Okanogan, WA
- Average high temperature in April: 54.3°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in April: 33.8°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in April
Okanogan, WA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in April
Okanogan, WA
- Average wind speed in April: 5.1mph
The windiest month (with the highest average wind speed) is April (5.1mph).
The calmest month (with the lowest average wind speed) is January (4mph).
Average humidity in April
Okanogan, WA
- Average humidity in April: 64%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (42%).
Average rainfall in April
Okanogan, WA
- Average rainfall in April: 0.51"
The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in April
Okanogan, WA
- Average rainfall days in April: 9.3 days
The month with the highest number of rainy days is March (11.5 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in April
Okanogan, WA
- Average snowfall in April: 0.2"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Okanogan, WA
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is December (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Okanogan, WA
- Average daylight in April: 13h and 42min
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 24min).
- Average sunshine in April: 10h and 36min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in April
Okanogan, WA
- Average sunshine days in April: 17.7 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is November (15.4 days).
Average UV index in April
Okanogan, WA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in April
Okanogan, WA
- Average cloud cover in April: 30
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in April
Okanogan, WA
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
