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
Weston's weather shows a temperature rise with the arrival of May, moving from a cool 52.3°F (11.3°C) in April to a refreshing 61.5°F (16.4°C). May's nights exhibit a sharp contrast from day highs, with an average temperature of 39.7°F (4.3°C).Humidity
The average relative humidity in May is 68%.Rainfall
In Weston, in May, it is raining for 15.4 days, with typically 2.24" (57mm) of accumulated precipitation. In Weston, during the entire year, the rain falls for 127.6 days and collects up to 24.33" (618mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 2.2 snowfall days, in May, Weston aggregates 0.75" (19mm) of snow. Throughout the year, in Weston, there are 84.8 snowfall days, and 74.33" (1888mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 58min.On the first day of May, sunrise is at 5:39 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 8:35 pm PDT.
Sunshine
The average sunshine in May is 10.3h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, an average UV index of 4 transforms into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May in Weston?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Weston, OR
- Average high temperature in May: 61.5°F
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (34.5°F).
- Average low temperature in May: 39.7°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).
Average pressure in May
Weston, OR
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Weston, OR
- Average wind speed in May: 5.6mph
The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).
Average humidity in May
Weston, OR
- Average humidity in May: 68%
The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is August (44%).
Average rainfall in May
Weston, OR
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is February (3.23").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
Weston, OR
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is March (15.9 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in May
Weston, OR
- Average snowfall in May: 0.75"
The month with the highest snowfall is February (19.21").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Weston, OR
- Average snowfall days in May: 2.2 days
The month with the highest number of snowfall days is December (17.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Weston, OR
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 10h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days in May
Weston, OR
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is July (24.5 days).
The months with the least sunshine days are February and March (8.2 days).
Average UV index in May
Weston, OR
- 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, March, April, November and December (UV index 2).
Average cloud cover in May
Weston, OR
- Average cloud cover in May: 34
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Weston, OR
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Weston, Oregon, USA
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