May weather forecastGaston, OR
May
Weather in May
May, the last month of the spring in Gaston, is an enjoyable month, with an average temperature fluctuating between 43°F (6.1°C) and 65.3°F (18.5°C).Temperature
Gaston's transition into May brings a slight rise in the average high-temperature, moving from 56.5°F (13.6°C) in April to a still refreshing 65.3°F (18.5°C). Gaston logs a notable disparity from the daily highs during May, as the nighttime temperature lowers to an average of 43°F (6.1°C).Humidity
The average relative humidity in May is 76%.Rainfall
In May, the rain falls for 14 days. Throughout May, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 183.5 rainfall days, and 34.45" (875mm) of precipitation is accumulated.Snowfall
In Gaston, Oregon, snow does not fall in April through October.Daylight
In May, the average length of the day is 14h and 55min.On the first day of May, sunrise is at 5:59 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:53 pm PDT.
Sunshine
The average sunshine in May is 7.8h.UV index
In Gaston, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 4 in May suggests the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Gaston, OR
- Average high temperature in May: 65.3°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in May: 43°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in May
Gaston, OR
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Gaston, OR
- Average wind speed in May: 4.3mph
The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in May
Gaston, OR
- Average humidity in May: 76%
The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is August (69%).
Average rainfall in May
Gaston, OR
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is January (5.47").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in May
Gaston, OR
- Average rainfall days in May: 14 days
The month with the highest number of rainy days is March (21.4 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in May
Gaston, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Gaston, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.9 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
Gaston, OR
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 7h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in May
Gaston, OR
- Average sunshine days in May: 15.7 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is March (7.6 days).
Average UV index in May
Gaston, OR
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in May
Gaston, OR
- Average cloud cover in May: 52
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Gaston, OR
- 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, November and December (4mi).
