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
Riddle measures an average high-temperature of a moderate 57.4°F (14.1°C) in April, nearly consistent with the preceding month. In Riddle, the average temperature during the nights of April marks a significant drop from the daily high, settling at a cold 35.4°F (1.9°C).Humidity
In April, the average relative humidity is 82%.Rainfall
In Riddle, during April, the rain falls for 10.6 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, in Riddle, there are 93.9 rainfall days, and 7.64" (194mm) of precipitation is accumulated.Snowfall
In Riddle, snow does not fall in April through October.Daylight
In April, the average length of the day is 13h and 26min.On the first day of April, sunrise is at 6:53 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:13 pm PDT.
Sunshine
In April, the average sunshine in Riddle, Oregon, is 7.2h.UV index
In Riddle, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 3 in April leads to these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are April temperatures in Riddle?
What is the average humidity in April in Riddle?
How many days does it rain in April in Riddle?
When it does not snow in Riddle?
Does it snow in Riddle in April?
How many hours of daylight does Riddle have in April?
When are sunrise and sunset in April in Riddle?
How many hours of sunshine does Riddle have in April?
How high is the UV index in April in Riddle?
Average temperature in April
Riddle, OR
- Average high temperature in April: 57.4°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.7°F).
- Average low temperature in April: 35.4°F
The month with the highest average low temperature is August (47.7°F).
The coldest month (with the lowest average low temperature) is December (32.2°F).
Average pressure in April
Riddle, OR
- Average pressure in April: 30.08"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in April
Riddle, OR
- Average wind speed in April: 3.8mph
The windiest month (with the highest average wind speed) is January (4.1mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).
Average humidity in April
Riddle, OR
- Average humidity in April: 82%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in April
Riddle, OR
- Average rainfall in April: 0.71"
The wettest months (with the highest rainfall) are January, February and December (1.1").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in April
Riddle, OR
- Average rainfall days in April: 10.6 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (2.4 days).
Average snowfall in April
Riddle, OR
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Riddle, OR
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Riddle, OR
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 7h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in April
Riddle, OR
- Average sunshine days in April: 17.2 days
The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is March (16.1 days).
Average UV index in April
Riddle, OR
- Average UV index in April: 3
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
Riddle, OR
- Average cloud cover in April: 57
The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in April
Riddle, OR
- Average visibility in April: 4mi
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).
Riddle, Oregon, USA
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