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
May sees a marginal temperature increase, moving from a refreshing 57°F (13.9°C) in April to a comfortable 65.5°F (18.6°C). Spanaway reports a sharp reduction in temperature during May, averaging at a chilly 43.5°F (6.4°C) at night.Humidity
In Spanaway, the average relative humidity in May is 75%.Rainfall
In Spanaway, Washington, during May, the rain falls for 14 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 176.3 rainfall days, and 30.28" (769mm) of precipitation is accumulated.Snowfall
In Spanaway, snow does not fall in May through October.Daylight
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 Spanaway, the average sunshine in May is 8.7h.UV index
In May, the average daily maximum UV index in Spanaway is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 4 in May transforms into this advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the average May temperature in Spanaway?
What is the average humidity in May in Spanaway?
How many days does it rain in May in Spanaway?
When it does not snow in Spanaway?
Does it snow in Spanaway in May?
How many hours of daylight does Spanaway have in May?
When are sunrise and sunset in May in Spanaway?
How many hours of sunshine does Spanaway have in May?
What is the UV index reading in May in Spanaway?
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 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 4min
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).
Spanaway, Washington, USA
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