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
In May, the average high-temperature increases from a mild 56.8°F (13.8°C) in April to a comfortable 65.8°F (18.8°C). In Troutdale, the average low-temperature is 42.6°F (5.9°C).Humidity
The average relative humidity in May is 73%.Rainfall
In Troutdale, it is raining for 14.3 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, in Troutdale, 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
In Troutdale, the average length of the day in May is 14h and 56min.On the first day of May, sunrise is at 5:57 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:50 pm PDT.
Sunshine
In Troutdale, Oregon, the average sunshine in May is 8.8h.UV index
In Troutdale, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
FAQ
What is the temperature in May in Troutdale?
What is the average humidity in May in Troutdale?
How many days does it rain in May in Troutdale?
When it does not snow in Troutdale?
What is the average length of the day in May in Troutdale?
When is the sunrise / sunset in May in Troutdale?
How long on average sun shines in May in Troutdale?
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 56min
The month with the longest days is June (Average daylight: 15h and 38min).
The month with the shortest days is December (Average daylight: 8h and 46min).
- Average sunshine in May: 8h and 48min
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).
Weather forecast for your location
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location
