May weather forecastGreenwater, WA
May
Weather in May
The last month of the spring, May, is a moderate month in Greenwater, Washington, with an average temperature fluctuating between 60.4°F (15.8°C) and 40.6°F (4.8°C).Temperature
May's onset witnesses a minor shift in the average high-temperature, moving from a fresh 52°F (11.1°C) in April to a refreshing 60.4°F (15.8°C). During the month of May, an average low-temperature of 40.6°F (4.8°C) is recorded.Humidity
In May, the average relative humidity is 78%.Rainfall
In Greenwater, in May, during 14.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Greenwater, there are 181.2 rainfall days, and 38.82" (986mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Greenwater, the average length of the day in May is 15h and 7min.On the first day of May, sunrise is at 5:48 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 8:54 pm PDT.
Sunshine
In May, the average sunshine in Greenwater is 8.5h.UV index
In Greenwater, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 4 in May transforms into this advice:
Take precautions - Protection against sun damage is advised. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Greenwater, WA
- Average high temperature in May: 60.4°F
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is December (39.9°F).
- Average low temperature in May: 40.6°F
The month with the highest average low temperature is August (48.9°F).
The coldest month (with the lowest average low temperature) is December (30.2°F).
Average pressure in May
Greenwater, WA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in May
Greenwater, WA
- Average wind speed in May: 3.9mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in May
Greenwater, WA
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
Greenwater, WA
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is January (5.71").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in May
Greenwater, WA
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (6.8 days).
Average snowfall in May
Greenwater, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Greenwater, WA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
Greenwater, WA
- Average daylight in May: 15h and 6min
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 36min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in May
Greenwater, WA
- Average sunshine days in May: 14 days
The month with the most sunshine days is August (22.1 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
Greenwater, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in May
Greenwater, WA
- Average cloud cover in May: 48
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Greenwater, WA
- Average visibility in May: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
