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 Grand Mound welcomes May, the average high-temperature displays a subtle shift, adjusting from a refreshing 56.7°F (13.7°C) in April to an enjoyable 64.9°F (18.3°C). Grand Mound, after an intense day, registers a significant cooling to an average low-temperature of 41.2°F (5.1°C) throughout May.Humidity
In May, the average relative humidity in Grand Mound is 78%.Rainfall
In May, the rain falls for 13.4 days. Throughout May, 1.34" (34mm) of precipitation is accumulated. Throughout the year, in Grand Mound, Washington, there are 168 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
In Grand Mound, snow does not fall in April through October.Daylight
In May, the average length of the day in Grand Mound is 15h and 4min.On the first day of May in Grand Mound, sunrise is at 5:55 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:58 pm PDT.
Sunshine
In Grand Mound, the average sunshine in May is 8h.UV index
In Grand Mound, Washington, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Around midday, solar radiation is most harmful; hence, exposure should be limited. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What are the temperatures in Grand Mound in May?
What is the average humidity in May in Grand Mound?
How much does it rain in Grand Mound in May?
When it does not snow in Grand Mound?
How many hours of daylight does Grand Mound have in May?
When is the sunrise / sunset in May in Grand Mound?
How long on average sun shines in May in Grand Mound?
How high is the UV index in May in Grand Mound?
Average temperature in May
Grand Mound, WA
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in May: 41.2°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in May
Grand Mound, WA
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in May
Grand Mound, WA
- Average wind speed in May: 4mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in May
Grand Mound, WA
- Average humidity in May: 78%
The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).
Average rainfall in May
Grand Mound, WA
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in May
Grand Mound, WA
- Average rainfall days in May: 13.4 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in May
Grand Mound, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Grand Mound, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.7 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
Grand Mound, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in May
Grand Mound, WA
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).
Average UV index in May
Grand Mound, WA
- Average UV index in May: 4
The months with the highest UV index are June and 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
Grand Mound, WA
- Average cloud cover in May: 55
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in May
Grand Mound, WA
- Average visibility in May: 4mi
The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).
Grand Mound, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
