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
April brings a slight elevation in the average high-temperature, transitioning from March's cool 52.2°F (11.2°C) to a mild 59.9°F (15.5°C). Throughout the month of April, the average temperature dips to a cold 41.4°F (5.2°C) at night.Humidity
In Helix, the average relative humidity in April is 59%.Rainfall
In Helix, during April, the rain falls for 13.3 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 125.2 rainfall days, and 11.26" (286mm) of precipitation is accumulated.Snowfall
Months with snowfall in Helix are January through April, September, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Helix aggregates 0.04" (1mm) of snow. In Helix, during the entire year, snow falls for 19.8 days and aggregates up to 10.16" (258mm) of snow.Daylight
The average length of the day in April is 13h and 35min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:23 pm. On the last day of April, sunrise is at 5:41 am and sunset at 8:01 pm PDT.
Sunshine
In April, the average sunshine is 10.1h.UV index
The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during April translates into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
How many hours of daylight does Helix have in April?
When are sunrise and sunset in April?
How many hours of sunshine does Helix have in April?
How high is the UV index in April?
Average temperature in April
Helix, OR
- Average high temperature in April: 59.9°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in April: 41.4°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in April
Helix, OR
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in April
Helix, OR
- Average wind speed in April: 8.5mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (6.2mph).
Average humidity in April
Helix, OR
- Average humidity in April: 59%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in April
Helix, OR
- Average rainfall in April: 1.02"
The wettest month (with the highest rainfall) is December (1.5").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in April
Helix, OR
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is March (15.9 days).
The month with the least rainy days is August (3.7 days).
Average snowfall in April
Helix, OR
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in April
Helix, OR
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is December (6.1 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
Helix, OR
- Average daylight in April: 13h and 4min
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: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in April
Helix, OR
- Average sunshine days in April: 14.9 days
The month with the most sunshine days is July (25.1 days).
The month with the least sunshine days is February (12.4 days).
Average UV index in April
Helix, OR
- Average UV index in April: 4
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
Helix, OR
- Average cloud cover in April: 34
The month with the most cloud cover is December (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in April
Helix, OR
- 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).
Helix, Oregon, USA
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