Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May shows a rise in the average high-temperature, moving from April's mild 56.8°F (13.8°C) to a comfortable 65.8°F (18.8°C). Nighttime in May brings a stark departure from the daily high in Scappoose, resting at an average low-temperature of 42.6°F (5.9°C).Humidity
In May, the average relative humidity is 76%.Rainfall
In Scappoose, in May, during 14.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Scappoose, during the entire year, the rain falls for 181.3 days and collects up to 35.55" (903mm) of precipitation.Snowfall
April through October are months without snowfall in Scappoose.Daylight
In May, the average length of the day is 14h and 58min.On the first day of May in Scappoose, sunrise is at 5:57 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:53 pm PDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
In May, the average daily maximum UV index in Scappoose, Oregon, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 4 in May leads to these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What is the temperature in May in Scappoose?
What is the average humidity in May in Scappoose?
How much does it rain in Scappoose in May?
When it does not snow in Scappoose?
How many hours of daylight does Scappoose have in May?
What time are sunrise and sunset in May in Scappoose?
How long on average sun shines in May in Scappoose?
How high is the UV index in May in Scappoose?
Average temperature in May
Scappoose, OR
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in May: 42.6°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in May
Scappoose, OR
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Scappoose, OR
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is March (4.8mph).
The calmest month (with the lowest average wind speed) is September (4mph).
Average humidity in May
Scappoose, OR
- Average humidity in May: 76%
The months with the highest relative humidity are February and November (87%).
The months with the lowest relative humidity are July and August (69%).
Average rainfall in May
Scappoose, OR
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is January (5.24").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in May
Scappoose, OR
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (21.1 days).
The months with the least rainy days are July and August (5.5 days).
Average snowfall in May
Scappoose, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Scappoose, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Scappoose, OR
- Average daylight in May: 15h and 0min
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 May: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).
Average sunshine days in May
Scappoose, OR
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is July (23.2 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in May
Scappoose, OR
- Average UV index in May: 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 May
Scappoose, OR
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Scappoose, OR
- Average visibility in May: 5mi
The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
Scappoose, Oregon, USA
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