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
In Dayton, stepping into May brings a gentle temperature nudge, moving slightly up from April's refreshing 57.7°F (14.3°C) to a comfortable 66°F (18.9°C). Dayton observes a distinct decrease from peak daytime temperatures, with an average low-temperature of 43.3°F (6.3°C) throughout the month of May.Humidity
In May, the average relative humidity 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
April through October are months without snowfall.Daylight
The average length of the day in May in Dayton 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
The average sunshine in May is 8.5h.UV index
In Dayton, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the usual temperature for Dayton in May?
What is the average humidity in May in Dayton?
How much does it rain in Dayton in May?
When it does not snow in Dayton?
What is the average length of the day in May in Dayton?
What time are sunrise and sunset in May in Dayton?
How many hours of sunshine does Dayton have in May?
How high is the UV index in May in Dayton?
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
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