May weather forecastMission, OR
May
Weather in May
The last month of the spring, May, is an enjoyable month in Mission, Oregon, with an average temperature ranging between max 66.7°F (19.3°C) and min 46.6°F (8.1°C).Temperature
The onset of May marks an increase in the average high-temperature, moving from a refreshing 57.6°F (14.2°C) in April to an enjoyable 66.7°F (19.3°C). An average nighttime temperature of 46.6°F (8.1°C) is recorded in Mission during May.Humidity
The average relative humidity in May is 58%.Rainfall
In Mission, during May, the rain falls for 13.1 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Mission, during the entire year, the rain falls for 132.7 days and collects up to 12.91" (328mm) of precipitation.Snowfall
May through August and October are months without snowfall in Mission, Oregon.Daylight
The average length of the day in May is 14h and 57min.On the first day of May, sunrise is at 5:40 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:08 am and sunset at 8:36 pm PDT.
Sunshine
The average sunshine in May is 11h.UV index
In Mission, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Ensure safety - Sun damage prevention is strongly urged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mission, OR
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in May: 46.6°F
The month with the highest average low temperature is August (61.7°F).
The coldest month (with the lowest average low temperature) is December (27.3°F).
Average pressure in May
Mission, OR
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Mission, OR
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in May
Mission, OR
- Average humidity in May: 58%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall in May
Mission, OR
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is March (1.65").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
Mission, OR
- Average rainfall days in May: 13.1 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (3.6 days).
Average snowfall in May
Mission, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in May
Mission, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
Mission, 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: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in May
Mission, OR
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (11.7 days).
Average UV index in May
Mission, OR
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Mission, OR
- Average cloud cover in May: 27
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in May
Mission, OR
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
