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
The shift into April is marked by a modest rise in the average high-temperature, moving from March's chilly 48.6°F (9.2°C) to a moderate 57.4°F (14.1°C). Throughout April, an average low-temperature of 38.7°F (3.7°C) is experienced in Pomona Heights.Humidity
The average relative humidity in April is 59%.Rainfall
In April, in Pomona Heights, the rain falls for 9 days. Throughout April, 0.35" (9mm) of precipitation is accumulated. Throughout the year, there are 87.6 rainfall days, and 5.94" (151mm) of precipitation is accumulated.Snowfall
January through April, September, November and December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, Pomona Heights aggregates 0.04" (1mm) of snow. In Pomona Heights, Washington, during the entire year, snow falls for 19.9 days and aggregates up to 8.62" (219mm) of snow.Daylight
In Pomona Heights, the average length of the day in April is 13h and 37min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:31 pm. On the last day of April, sunrise is at 5:47 am and sunset at 8:10 pm PDT.
Sunshine
In Pomona Heights, the average sunshine in April is 11h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In April, the maximum UV index of 4 translates into these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows in Pomona Heights?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Pomona Heights, WA
- Average high temperature in April: 57.4°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in April: 38.7°F
The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in April
Pomona Heights, WA
- Average pressure in April: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in April
Pomona Heights, WA
- Average wind speed in April: 6.8mph
The windiest month (with the highest average wind speed) is June (7.4mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in April
Pomona Heights, WA
- Average humidity in April: 59%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (41%).
Average rainfall in April
Pomona Heights, WA
- Average rainfall in April: 0.35"
The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in April
Pomona Heights, WA
- Average rainfall days in April: 9 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is July (2.3 days).
Average snowfall in April
Pomona Heights, WA
- Average snowfall in April: 0.04"
The month with the highest snowfall is December (3.07").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in April
Pomona Heights, WA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is December (5.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in April /
Average sunshine in April
Pomona Heights, WA
- Average daylight in April: 13h and 4min
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: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in April
Pomona Heights, WA
- Average sunshine days in April: 18.5 days
The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is February (15.5 days).
Average UV index in April
Pomona Heights, WA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Pomona Heights, WA
- Average cloud cover in April: 27
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in April
Pomona Heights, WA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Pomona Heights, Washington, USA
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