May weather forecastGreenbank, WA
May
Weather in May
May, the last month of the spring in Greenbank, is a moderate month, with an average temperature fluctuating between 59.2°F (15.1°C) and 47.8°F (8.8°C).Temperature
Greenbank perceives a slight temperature ascent during May, with average high-temperatures adjusting from a cool 53.1°F (11.7°C) in April to a refreshing 59.2°F (15.1°C). Greenbank experiences an average low-temperature of 47.8°F (8.8°C) in month of May.Humidity
The average relative humidity in May in Greenbank is 77%.Rainfall
In Greenbank, in May, it is raining for 13 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, there are 183.3 rainfall days, and 23.03" (585mm) of precipitation is accumulated.Snowfall
In Greenbank, snow does not fall in May through October.Daylight
In May, the average length of the day is 15h and 13min.On the first day of May in Greenbank, sunrise is at 5:50 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 9:01 pm PDT.
Sunshine
The average sunshine in May in Greenbank is 9.8h.UV index
In Greenbank, Washington, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Greenbank, WA
- Average high temperature in May: 59.2°F
The warmest month (with the highest average high temperature) is August (67.3°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in May: 47.8°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 (37.9°F).
Average pressure in May
Greenbank, WA
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in May
Greenbank, WA
- Average wind speed in May: 4.8mph
The windiest month (with the highest average wind speed) is November (8mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in May
Greenbank, WA
- Average humidity in May: 77%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (76%).
Average rainfall in May
Greenbank, WA
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is November (3.19").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in May
Greenbank, WA
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.9 days).
Average snowfall in May
Greenbank, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Greenbank, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Greenbank, WA
- Average daylight in May: 15h and 12min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 9h and 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Greenbank, WA
- Average sunshine days in May: 16.4 days
The month with the most sunshine days is August (23 days).
The month with the least sunshine days is February (8 days).
Average UV index in May
Greenbank, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Greenbank, WA
- Average cloud cover in May: 37
The months with the most cloud cover are January, February and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in May
Greenbank, 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).
