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 brings a temperature increase, with average high-temperatures moving from April's cool 50.5°F (10.3°C) to a comfortable 62.4°F (16.9°C). Nightly readings in May display a noticeable downturn from daily highs in Usk, with the average low-temperature registering an icy 38.1°F (3.4°C).Humidity
In Usk, the average relative humidity in May is 68%.Rainfall
In Usk, during May, the rain falls for 16.3 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Usk, during the entire year, the rain falls for 130.2 days and collects up to 24.17" (614mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In May, it is snowing for 3.2 days. Throughout May, 2.8" (71mm) of snow is accumulated. Throughout the year, there are 122.5 snowfall days, and 103.78" (2636mm) of snow is accumulated.Daylight
In Usk, the average length of the day in May is 15h and 14min.On the first day of May in Usk, Washington, sunrise is at 5:28 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 4:52 am and sunset at 8:41 pm PDT.
Sunshine
In May, the average sunshine is 10.1h.UV index
In Usk, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during May morphs into the following directions:
Take precautions - Protection against sunburn is recommended. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How much does it rain in May?
How much does it snow in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index intensity in May in Usk?
Average temperature in May
Usk, WA
- Average high temperature in May: 62.4°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (28.8°F).
- Average low temperature in May: 38.1°F
The month with the highest average low temperature is August (50.2°F).
The coldest months (with the lowest average low temperature) are February and December (18°F).
Average pressure in May
Usk, WA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Usk, WA
- Average wind speed in May: 4.3mph
The windiest month (with the highest average wind speed) is April (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.3mph).
Average humidity in May
Usk, WA
- Average humidity in May: 68%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (51%).
Average rainfall in May
Usk, WA
- Average rainfall in May: 2.44"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in May
Usk, WA
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is April (17.2 days).
The months with the least rainy days are February and August (6.8 days).
Average snowfall in May
Usk, WA
- Average snowfall in May: 2.8"
The month with the highest snowfall is January (23.39").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Usk, WA
- Average snowfall days in May: 3.2 days
The month with the highest number of snowfall days is December (21.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Usk, 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: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Usk, WA
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is August (21.9 days).
The months with the least sunshine days are February, March and April (7.8 days).
Average UV index in May
Usk, 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 February, November and December (UV index 1).
Average cloud cover in May
Usk, WA
- Average cloud cover in May: 36
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in May
Usk, WA
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Usk, Washington, USA
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