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 signals a temperature shift, moving from a cool 50.5°F (10.3°C) in April to an enjoyable 61.7°F (16.5°C). Throughout May nights, Summerville reports a steady thermal contrast from the day, with an average low-temperature of 37.2°F (2.9°C).Humidity
The average relative humidity in May in Summerville is 69%.Rainfall
In Summerville, Oregon, in May, it is raining for 15.3 days, with typically 1.81" (46mm) of accumulated precipitation. In Summerville, Oregon, during the entire year, the rain falls for 137.5 days and collects up to 20.94" (532mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 1.3 snowfall days, in May, Summerville aggregates 0.47" (12mm) of snow. In Summerville, during the entire year, snow falls for 68.6 days and aggregates up to 52.4" (1331mm) of snow.Daylight
In Summerville, the average length of the day in May is 14h and 56min.On the first day of the month, sunrise is at 5:38 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:06 am and sunset at 8:33 pm PDT.
Sunshine
The average sunshine in May is 10.5h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In May, a daily UV index of 4 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Summerville in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Summerville have in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Summerville, OR
- Average high temperature in May: 61.7°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (33.8°F).
- Average low temperature in May: 37.2°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (21°F).
Average pressure in May
Summerville, 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
Summerville, OR
- Average wind speed in May: 4.7mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in May
Summerville, OR
- Average humidity in May: 69%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (47%).
Average rainfall in May
Summerville, OR
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in May
Summerville, OR
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (4.3 days).
Average snowfall in May
Summerville, OR
- Average snowfall in May: 0.47"
The month with the highest snowfall is February (13.62").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Summerville, OR
- Average snowfall days in May: 1.3 days
The months with the highest number of snowfall days are February and December (14.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Summerville, OR
- Average daylight in May: 14h and 5min
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: 10h and 3min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in May
Summerville, OR
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is March (7.6 days).
Average UV index in May
Summerville, OR
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Summerville, OR
- Average cloud cover in May: 32
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Summerville, OR
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is February (4mi).
Summerville, Oregon, USA
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