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
The shift into May in Troutdale is accompanied by a temperature increase, with the average high-temperature rising from a refreshing 56.8°F (13.8°C) in April to a comfortable 65.8°F (18.8°C). A pronounced dip becomes evident during the nights in May as Troutdale logs a consistent average temperature of 42.6°F (5.9°C).Humidity
The average relative humidity in May in Troutdale is 73%.Rainfall
In Troutdale, during May, the rain falls for 14.3 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, there are 171 rainfall days, and 37.2" (945mm) of precipitation is accumulated.Snowfall
In Troutdale, snow does not fall in April through October.Daylight
The average length of the day in May in Troutdale is 14h and 56min.On the first day of the month, sunrise is at 5:56 am and sunset at 8:17 pm. On the last day of May, in Troutdale, sunrise is at 5:24 am and sunset at 8:50 pm PDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
In Troutdale, the average daily maximum UV index in May 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: A typical high UV index of 4 in May suggests the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the temperature in May in Troutdale?
What is the average humidity in May in Troutdale?
How much does it rain in Troutdale in May?
When it does not snow in Troutdale?
What is the average length of the day in May in Troutdale?
When are sunrise and sunset in May in Troutdale?
How many hours of sunshine does Troutdale have in May?
How high is the UV index in May in Troutdale?
Average temperature in May
Troutdale, 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 (43.3°F).
- Average low temperature in May: 42.6°F
The month with the highest average low temperature is August (52.7°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in May
Troutdale, OR
- Average pressure in May: 30.02"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 May
Troutdale, OR
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in May
Troutdale, OR
- Average humidity in May: 73%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in May
Troutdale, OR
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is December (5.63").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in May
Troutdale, OR
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in May
Troutdale, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Troutdale, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.2 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
Troutdale, OR
- Average daylight in May: 14h and 5min
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 May: 8h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Troutdale, OR
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in May
Troutdale, 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
Troutdale, OR
- Average cloud cover in May: 46
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in May
Troutdale, OR
- Average visibility in May: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Troutdale, Oregon, USA
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