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 coming of April brings a minor shift in Sisters's weather, with average high-temperatures adjusting from March's frosty 42.8°F (6°C) to a still chilly 49.8°F (9.9°C). April in Sisters witnesses an average low-temperature hovering around a cold 33.3°F (0.7°C).Humidity
The average relative humidity in April is 72%.Rainfall
In April, the rain falls for 15.9 days. Throughout April, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 142.1 rainfall days, and 22.87" (581mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Sisters, in April, during 7.2 snowfall days, 3.39" (86mm) of snow is typically accumulated. Throughout the year, there are 70.7 snowfall days, and 60.04" (1525mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 30min.On the first day of April, sunrise is at 6:45 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:09 pm PDT.
Sunshine
In April, the average sunshine is 9.6h.UV index
In April, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 2 in April leads to these recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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 Sisters in April?
How much does it snow in April?
What is the average length of the day in April in Sisters?
When is the sunrise / sunset in April?
How many hours of sunshine does Sisters have in April?
What is the UV index reading in April in Sisters?
Average temperature in April
Sisters, OR
- Average high temperature in April: 49.8°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in April: 33.3°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in April
Sisters, OR
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in April
Sisters, OR
- Average wind speed in April: 6mph
The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity in April
Sisters, OR
- Average humidity in April: 72%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in April
Sisters, OR
- Average rainfall in April: 2.01"
The wettest month (with the highest rainfall) is January (3.31").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in April
Sisters, OR
- Average rainfall days in April: 15.9 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is July (5 days).
Average snowfall in April
Sisters, OR
- Average snowfall in April: 3.39"
The month with the highest snowfall is February (13.74").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Sisters, OR
- Average snowfall days in April: 7.2 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Sisters, OR
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 9h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in April
Sisters, OR
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in April
Sisters, OR
- Average UV index in April: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in April
Sisters, OR
- Average cloud cover in April: 41
The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in April
Sisters, OR
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Sisters, Oregon, USA
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