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
Dayton in May observes a minor temperature shift, with average high-temperatures adjusting from a moderate 57.7°F (14.3°C) in April to an enjoyable 66°F (18.9°C). The month of May sees a significant daily temperature drop, recording an average low-temperature of 43.3°F (6.3°C).Humidity
The average relative humidity in May is 76%.Rainfall
In Dayton, in May, during 13.3 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Dayton, during the entire year, the rain falls for 172.2 days and collects up to 28.9" (734mm) of precipitation.Snowfall
In Dayton, snow does not fall in April through October.Daylight
The average length of the day in May is 14h and 54min.On the first day of the month, sunrise is at 5:59 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:27 am and sunset at 8:52 pm PDT.
Sunshine
In Dayton, the average sunshine in May is 8.5h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Guidance to elude sunburn is provided. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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 much does it rain in May?
When it does not snow?
How many hours of daylight does Dayton have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Dayton have in May?
What is the UV index intensity in May?
Average temperature in May
Dayton, OR
- Average high temperature in May: 66°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 (44.1°F).
- Average low temperature in May: 43.3°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in May
Dayton, 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
Dayton, OR
- Average wind speed in May: 4.3mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in May
Dayton, OR
- Average humidity in May: 76%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is August (67%).
Average rainfall in May
Dayton, OR
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in May
Dayton, OR
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in May
Dayton, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Dayton, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Dayton, 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: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in May
Dayton, OR
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in May
Dayton, 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, November and December (UV index 2).
Average cloud cover in May
Dayton, OR
- Average cloud cover in May: 48
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in May
Dayton, OR
- Average visibility in May: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
Dayton, Oregon, USA
Weather forecast for your location
2. Allow the app to use your location