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
The arrival of May witnesses a small shift in the average high-temperature, moving from a refreshing 57.2°F (14°C) in April to an enjoyable 65.1°F (18.4°C). Corvallis receives a consistent average low-temperature of 41.5°F (5.3°C) in May, a substantial dip from the day's heat.Humidity
In May, the average relative humidity is 78%.Rainfall
In May, the rain falls for 12.8 days. Throughout May, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 169.2 rainfall days, and 30.28" (769mm) of precipitation is accumulated.Snowfall
In Corvallis, snow does not fall in April through October.Daylight
In May, the average length of the day is 14h and 50min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:18 pm. On the last day of May, in Corvallis, sunrise is at 5:31 am and sunset at 8:50 pm PDT.
Sunshine
The average sunshine in May is 8h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 4 in May transforms into this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
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 intensity in May in Corvallis?
Average temperature in May
Corvallis, OR
- Average high temperature in May: 65.1°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (44.8°F).
- Average low temperature in May: 41.5°F
The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in May
Corvallis, OR
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Corvallis, OR
- Average wind speed in May: 4.4mph
The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in May
Corvallis, OR
- Average humidity in May: 78%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (69%).
Average rainfall in May
Corvallis, OR
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in May
Corvallis, OR
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (4.5 days).
Average snowfall in May
Corvallis, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Corvallis, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.8 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
Corvallis, OR
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in May
Corvallis, OR
- Average sunshine days in May: 17 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in May
Corvallis, OR
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Corvallis, OR
- Average cloud cover in May: 51
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Corvallis, OR
- Average visibility in May: 4mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
Corvallis, Oregon, USA
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