May weather forecastMaple Valley, WA
May
Weather in May
May, the last month of the spring in Maple Valley, is a refreshing month, with an average temperature ranging between min 41.4°F (5.2°C) and max 62.2°F (16.8°C).Temperature
Maple Valley sees an increase in average high-temperatures during May, moving from a cool 53.2°F (11.8°C) in April to an enjoyable 62.2°F (16.8°C). Maple Valley observes an average nighttime temperature of 41.4°F (5.2°C) during May.Humidity
The average relative humidity in May is 77%.Rainfall
In May, the rain falls for 14.4 days. Throughout May, 1.97" (50mm) of precipitation is accumulated. Throughout the year, there are 182.4 rainfall days, and 36.77" (934mm) of precipitation is accumulated.Snowfall
In Maple Valley, snow does not fall in May through October.Daylight
In May, the average length of the day is 15h and 8min.On the first day of May, sunrise is at 5:50 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:15 am and sunset at 8:56 pm PDT.
Sunshine
In Maple Valley, the average sunshine in May is 8.8h.UV index
In Maple Valley, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Maple Valley, WA
- Average high temperature in May: 62.2°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (40.8°F).
- Average low temperature in May: 41.4°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is February (31.6°F).
Average pressure in May
Maple Valley, WA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30"Hg).
Average wind speed in May
Maple Valley, WA
- Average wind speed in May: 3.8mph
The windiest month (with the highest average wind speed) is January (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in May
Maple Valley, WA
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
Maple Valley, WA
- Average rainfall in May: 1.97"
The wettest month (with the highest rainfall) is December (5.43").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in May
Maple Valley, WA
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.7 days).
Average snowfall in May
Maple Valley, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Maple Valley, WA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
Maple Valley, 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 30min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).
Average sunshine days in May
Maple Valley, WA
- Average sunshine days in May: 14.2 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in May
Maple Valley, 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
Maple Valley, WA
- Average cloud cover in May: 47
The months with the most cloud cover are January, February, March and December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Maple Valley, WA
- Average visibility in May: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February and December (4mi).
