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
A minor adjustment in Copalis Crossing's average high-temperature is noted with the start of May, touching a moderate 57.6°F (14.2°C) from April's 52.3°F (11.3°C). During the month of May, Copalis Crossing anticipates a mean low-temperature of 46.9°F (8.3°C).Humidity
The months with the lowest humidity in Copalis Crossing are April through June, with an average relative humidity of 81%.Rainfall
In Copalis Crossing, Washington, in May, during 11.5 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, in Copalis Crossing, there are 152.8 rainfall days, and 19.41" (493mm) of precipitation is accumulated.Snowfall
April through October and December are months without snowfall in Copalis Crossing.Daylight
The average length of the day in May in Copalis Crossing is 15h and 6min.On the first day of May in Copalis Crossing, sunrise is at 5:58 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 9:03 pm PDT.
Sunshine
The average sunshine in May is 8.2h.UV index
The months with the highest UV index in Copalis Crossing, Washington, are May through September, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 4 translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the usual temperature for Copalis Crossing in May?
What are the least humid months in Copalis Crossing?
What is the average humidity in May in Copalis Crossing?
How much does it rain in Copalis Crossing in May?
When it does not snow in Copalis Crossing?
How many hours of daylight does Copalis Crossing have in May?
When is the sunrise / sunset in May in Copalis Crossing?
How long on average sun shines in May in Copalis Crossing?
What are the months with the highest UV index in Copalis Crossing?
How high is the UV index in May in Copalis Crossing?
Average temperature in May
Copalis Crossing, WA
- Average high temperature in May: 57.6°F
The warmest month (with the highest average high temperature) is August (65.8°F).
The month with the lowest average high temperature is December (45.5°F).
- Average low temperature in May: 46.9°F
The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is December (39.7°F).
Average pressure in May
Copalis Crossing, 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"Hg).
Average wind speed in May
Copalis Crossing, WA
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).
Average humidity in May
Copalis Crossing, WA
- Average humidity in May: 81%
The month with the highest relative humidity is December (85%).
The months with the lowest relative humidity are April, May and June (81%).
Average rainfall in May
Copalis Crossing, WA
- Average rainfall in May: 0.94"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
Copalis Crossing, WA
- Average rainfall days in May: 11.5 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is July (5.6 days).
Average snowfall in May
Copalis Crossing, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in May
Copalis Crossing, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.6 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
Copalis Crossing, WA
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Copalis Crossing, WA
- Average sunshine days in May: 15.9 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is December (10.7 days).
Average UV index in May
Copalis Crossing, 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 January, February, November and December (UV index 2).
Average cloud cover in May
Copalis Crossing, WA
- Average cloud cover in May: 48
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Copalis Crossing, WA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Copalis Crossing, Washington, USA
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