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 beginning of April signals a minor rise in the average high-temperature, moving from a frosty 48.9°F (9.4°C) in March to a refreshing 56.8°F (13.8°C). April's average low-temperature reading settles at an icy 38.7°F (3.7°C).Humidity
In Heppner, the average relative humidity in April is 62%.Rainfall
In Heppner, Oregon, in April, it is raining for 14.4 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, in Heppner, there are 131.9 rainfall days, and 13.54" (344mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Heppner, during April, snow falls for 1 days and regularly aggregates up to 0.31" (8mm) of snow. Throughout the year, there are 31.3 snowfall days, and 18.54" (471mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 33min.On the first day of April in Heppner, sunrise is at 6:36 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:04 pm PDT.
Sunshine
In Heppner, the average sunshine in April is 9.8h.UV index
In Heppner, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In April, a daily UV index of 3 turns into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What is the average April temperature in Heppner?
What is the average humidity in April in Heppner?
How much does it rain in Heppner in April?
How much does it snow in Heppner in April?
What is the average length of the day in April in Heppner?
What time are sunrise and sunset in April in Heppner?
How many hours of sunshine does Heppner have in April?
How high is the UV index in April in Heppner?
Average temperature in April
Heppner, OR
- Average high temperature in April: 56.8°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in April: 38.7°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in April
Heppner, OR
- Average pressure in April: 30.01"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in April
Heppner, OR
- Average wind speed in April: 9.4mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).
Average humidity in April
Heppner, OR
- Average humidity in April: 62%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in April
Heppner, OR
- Average rainfall in April: 1.34"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in April
Heppner, OR
- Average rainfall days in April: 14.4 days
The month with the highest number of rainy days is March (17 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in April
Heppner, OR
- Average snowfall in April: 0.31"
The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Heppner, OR
- Average snowfall days in April: 1 days
The month with the highest number of snowfall days is December (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Heppner, OR
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 9h and 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 18min).
Average sunshine days in April
Heppner, OR
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (9.5 days).
Average UV index in April
Heppner, OR
- 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
Heppner, OR
- Average cloud cover in April: 36
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in April
Heppner, 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).
Heppner, Oregon, USA
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