April weather forecastColton, WA
April
Weather in April
April is a moderate spring month in Colton, Washington, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 36.5°F (2.5°C).Temperature
April's arrival signals a subtle increase in average high-temperatures, moving from March's chilly 48.7°F (9.3°C) to a refreshing 56.8°F (13.8°C). Colton's average low-temperature in April is measured at a wintry 36.5°F (2.5°C).Humidity
The average relative humidity in April in Colton is 69%.Rainfall
In Colton, Washington, in April, during 13.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 116.2 rainfall days, and 8.23" (209mm) of precipitation is accumulated.Snowfall
In Colton, snow does not fall in April through September.Daylight
In Colton, Washington, the average length of the day in April is 13h and 37min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:18 pm. On the last day of April, sunrise is at 5:33 am and sunset at 7:57 pm PDT.
Sunshine
In April, the average sunshine is 9.9h.UV index
In April, the average daily maximum UV index in Colton is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in April interprets into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Colton, WA
- Average high temperature in April: 56.8°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in April: 36.5°F
The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in April
Colton, WA
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in April
Colton, WA
- Average wind speed in April: 6mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in April
Colton, WA
- Average humidity in April: 69%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (38%).
Average rainfall in April
Colton, WA
- Average rainfall in April: 0.87"
The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in April
Colton, WA
- Average rainfall days in April: 13.8 days
The months with the highest number of rainy days are March and April (13.8 days).
The month with the least rainy days is August (4.5 days).
Average snowfall in April
Colton, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in April
Colton, WA
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (4.7 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
Colton, 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: 9h and 54min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in April
Colton, WA
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in April
Colton, WA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Colton, WA
- Average cloud cover in April: 37
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in April
Colton, 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, February and December (5mi).





