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
As May takes hold, the average high-temperature is a refreshing 55.9°F (13.3°C), nearly mirroring that of the previous month. Chinook's nights throughout May are marked by an average low temperature of 48.7°F (9.3°C), a minor drop from the day's high.Humidity
In May, the average relative humidity in Chinook is 81%.Rainfall
In May, the rain falls for 11.1 days. Throughout May, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in Chinook, there are 165.1 rainfall days, and 19.92" (506mm) of precipitation is accumulated.Snowfall
March through August, October through December are months without snowfall.Daylight
The average length of the day in May in Chinook, Washington, is 15h and 1min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:25 pm. On the last day of May, sunrise is at 5:27 am and sunset at 8:59 pm PDT.
Sunshine
In May, the average sunshine is 8.2h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Chinook, Washington. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What are May temperatures in Chinook?
What is the average humidity in May in Chinook?
How much does it rain in Chinook in May?
When it does not snow in Chinook?
How many hours of daylight does Chinook have in May?
What time are sunrise and sunset in May in Chinook?
How many hours of sunshine does Chinook have in May?
When is the highest UV index in Chinook?
What is the UV index intensity in May in Chinook?
Average temperature in May
Chinook, WA
- Average high temperature in May: 55.9°F
The warmest month (with the highest average high temperature) is August (63.9°F).
The month with the lowest average high temperature is December (46.8°F).
- Average low temperature in May: 48.7°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 (41.5°F).
Average pressure in May
Chinook, WA
- Average pressure in May: 30.06"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in May
Chinook, WA
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in May
Chinook, WA
- Average humidity in May: 81%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is April (80%).
Average rainfall in May
Chinook, WA
- Average rainfall in May: 0.79"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in May
Chinook, WA
- Average rainfall days in May: 11.1 days
The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is August (6.7 days).
Average snowfall in May
Chinook, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are March, April, May, June, July, August, October, November and December (0").
Average snowfall days in May
Chinook, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
Chinook, WA
- 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 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Chinook, WA
- Average sunshine days in May: 16.7 days
The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is November (8.9 days).
Average UV index in May
Chinook, WA
- Average UV index in May: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in May
Chinook, WA
- Average cloud cover in May: 48
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in May
Chinook, WA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Chinook, Washington, USA
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