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
Three Rivers's transition into May is marked by a rise in the average high-temperature, advancing from a frosty 49.6°F (9.8°C) in April to a refreshing 59.9°F (15.5°C). During the month of May, the nighttime temperature falls to an average of 39.7°F (4.3°C).Humidity
In May, the average relative humidity in Three Rivers is 60%.Rainfall
In May, the rain falls for 5.5 days. Throughout May, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 42.7 rainfall days, and 4.8" (122mm) of precipitation is accumulated.Snowfall
Months with snowfall in Three Rivers are January through June, September through December. In May, it is snowing for 2 days. Throughout May, 2.64" (67mm) of snow is accumulated. Throughout the year, there are 40.2 snowfall days, and 19.09" (485mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 46min.On the first day of the month, sunrise is at 5:56 am and sunset at 8:09 pm. On the last day of May, sunrise is at 5:26 am and sunset at 8:40 pm PDT.
Sunshine
In Three Rivers, the average sunshine in May is 10.9h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the maximum UV index of 4 suggests these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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?
How many days does it rain in May?
How much does it snow in May?
How many hours of daylight does Three Rivers have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Three Rivers have in May?
How high is the UV index in May?
Average temperature in May
Three Rivers, OR
- Average high temperature in May: 59.9°F
The warmest month (with the highest average high temperature) is July (79.3°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 (51.8°F).
The coldest month (with the lowest average low temperature) is December (23.7°F).
Average pressure in May
Three Rivers, OR
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in May
Three Rivers, OR
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Three Rivers, OR
- Average humidity in May: 60%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (46%).
Average rainfall in May
Three Rivers, OR
- Average rainfall in May: 0.67"
The wettest month (with the highest rainfall) is February (0.71").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
Three Rivers, OR
- Average rainfall days in May: 5.5 days
The month with the highest number of rainy days is May (5.5 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in May
Three Rivers, OR
- Average snowfall in May: 2.64"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Three Rivers, OR
- Average snowfall days in May: 2 days
The month with the highest number of snowfall days is December (7.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Three Rivers, OR
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
Three Rivers, OR
- Average sunshine days in May: 23.3 days
The month with the most sunshine days is July (26.7 days).
The month with the least sunshine days is February (20.6 days).
Average UV index in May
Three Rivers, 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, November and December (UV index 2).
Average cloud cover in May
Three Rivers, OR
- Average cloud cover in May: 30
The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in May
Three Rivers, OR
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Three Rivers, Oregon, USA
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