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's arrival coincides with a temperature rise, moving from April's cool 54.1°F (12.3°C) to an enjoyable 65.1°F (18.4°C). A significant drop from the day's peak to an average low-temperature of 41.2°F (5.1°C) is noted during the nights in May in Trentwood.Humidity
In May, the average relative humidity is 65%.Rainfall
In Trentwood, during May, the rain falls for 12.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, in Trentwood, there are 125.4 rainfall days, and 17.28" (439mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Trentwood. May is the last month it regularly snows in Trentwood. During 0.2 snowfall days, in May, Trentwood aggregates 0.04" (1mm) of snow. In Trentwood, during the entire year, snow falls for 56.4 days and aggregates up to 37.4" (950mm) of snow.Daylight
The average length of the day in May in Trentwood is 15h and 10min.On the first day of the month, sunrise is at 5:29 am and sunset at 8:01 pm. On the last day of May, in Trentwood, sunrise is at 4:54 am and sunset at 8:38 pm PDT.
Sunshine
The average sunshine in May in Trentwood is 10.3h.UV index
In Trentwood, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the temperatures in Trentwood in May?
What is the average humidity in May in Trentwood?
How many days does it rain in May in Trentwood?
What is the last month it snows in Trentwood?
What is the average length of the day in May in Trentwood?
When is the sunrise / sunset in May in Trentwood?
How long on average sun shines in May in Trentwood?
How high is the UV index in May in Trentwood?
Average temperature in May
Trentwood, WA
- Average high temperature in May: 65.1°F
The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).
- Average low temperature in May: 41.2°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in May
Trentwood, WA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Trentwood, WA
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in May
Trentwood, WA
- Average humidity in May: 65%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).
Average rainfall in May
Trentwood, WA
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in May
Trentwood, WA
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).
Average snowfall in May
Trentwood, WA
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Trentwood, WA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Trentwood, WA
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 10h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in May
Trentwood, WA
- Average sunshine days in May: 16.4 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).
Average UV index in May
Trentwood, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Trentwood, WA
- Average cloud cover in May: 34
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in May
Trentwood, WA
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Trentwood, Washington, USA
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