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's arrival is noted with a slight increase in the average high-temperature, moving from a cool 53.6°F (12°C) in April to a refreshing 61.3°F (16.3°C). In May, Silvana experiences an average nighttime temperature of 43.7°F (6.5°C).Humidity
In May, the average relative humidity is 78%.Rainfall
In Silvana, during May, the rain falls for 14.3 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Silvana, during the entire year, the rain falls for 188.6 days and collects up to 34.92" (887mm) of precipitation.Snowfall
In Silvana, snow does not fall in May through October.Daylight
The average length of the day in May is 15h and 14min.On the first day of May, sunrise is at 5:48 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 9:00 pm PDT.
Sunshine
In Silvana, the average sunshine in May is 9.1h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 4 transforms into these recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
How many hours of daylight does Silvana have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May?
Average temperature in May
Silvana, WA
- Average high temperature in May: 61.3°F
The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is December (41.7°F).
- Average low temperature in May: 43.7°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is February (33.8°F).
Average pressure in May
Silvana, WA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in May
Silvana, WA
- Average wind speed in May: 3.9mph
The windiest months (with the highest average wind speed) are January and November (5.6mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in May
Silvana, WA
- Average humidity in May: 78%
The months with the highest relative humidity are January, February, November and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall in May
Silvana, WA
- Average rainfall in May: 2.05"
The wettest month (with the highest rainfall) is November (4.92").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in May
Silvana, WA
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.9 days).
Average snowfall in May
Silvana, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Silvana, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.3 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
Silvana, WA
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in May
Silvana, WA
- Average sunshine days in May: 14.1 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in May
Silvana, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in May
Silvana, WA
- Average cloud cover in May: 42
The month with the most cloud cover is December (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in May
Silvana, WA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Silvana, Washington, USA
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