May weather forecastSpanaway, WA
May
Weather in May
May, the last month of the spring in Spanaway, is a refreshing month, with temperature in the range of an average high of 65.5°F (18.6°C) and an average low of 43.5°F (6.4°C).Temperature
The shift from April to May introduces a subtle increase in the average high-temperature, moving from a mild 57°F (13.9°C) to an enjoyable 65.5°F (18.6°C). May in Spanaway presents a pronounced difference from daytime highs, with a consistent average low-temperature of 43.5°F (6.4°C).Humidity
In Spanaway, the average relative humidity in May is 75%.Rainfall
In Spanaway, in May, it is raining for 14 days, with typically 1.61" (41mm) of accumulated precipitation. Throughout the year, there are 176.3 rainfall days, and 30.28" (769mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Spanaway, the average length of the day in May is 15h and 6min.On the first day of the month, sunrise is at 5:52 am and sunset at 8:21 pm. On the last day of May, sunrise is at 5:18 am and sunset at 8:57 pm PDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
In Spanaway, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Spanaway, WA
- Average high temperature in May: 65.5°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in May: 43.5°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is February (34.2°F).
Average pressure in May
Spanaway, WA
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in May
Spanaway, WA
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in May
Spanaway, WA
- Average humidity in May: 75%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in May
Spanaway, WA
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is December (4.76").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in May
Spanaway, WA
- Average rainfall days in May: 14 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in May
Spanaway, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Spanaway, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.4 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
Spanaway, WA
- Average daylight in May: 15h and 6min
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 42min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in May
Spanaway, WA
- Average sunshine days in May: 15.2 days
The month with the most sunshine days is August (23.3 days).
The months with the least sunshine days are February and March (9 days).
Average UV index in May
Spanaway, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Spanaway, WA
- Average cloud cover in May: 45
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Spanaway, 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, March, April, May, June, September, October, November and December (5mi).
