May weather forecast
Dayton, MN

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Weather in May

The last month of the spring, May, is a refreshing month in Dayton, Minnesota, with an average temperature fluctuating between 65.3°F (18.5°C) and 48.7°F (9.3°C).

Temperature

The shift into May brings an increase in the average high-temperature, moving from a fresh 52.3°F (11.3°C) in April to an enjoyable 65.3°F (18.5°C). May nights cool down to an average low-temperature of 48.7°F (9.3°C).

Humidity

In Dayton, the average relative humidity in May is 71%.

Rainfall

In Dayton, during May, the rain falls for 14.8 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Dayton, during the entire year, the rain falls for 118.9 days and collects up to 20.75" (527mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Dayton aggregates 0.2" (5mm) of snow. In Dayton, during the entire year, snow falls for 55.5 days and aggregates up to 19.37" (492mm) of snow.

Daylight

In Dayton, the average length of the day in May is 14h and 54min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:20 pm. On the last day of May, in Dayton, sunrise is at 5:29 am and sunset at 8:54 pm CDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 5 in May transforms into this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Around midday, solar radiation is most harmful; hence, exposure should be limited. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In Dayton, 65.3°F (18.5°C) is the average high-temperature and 48.7°F (9.3°C) is the average low-temperature during May.

What is the average humidity in May?

In May, the average relative humidity in Dayton is 71%.

How much does it rain in May?

In May, the rain falls for 14.8 days. Throughout May, 2.48" (63mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Dayton aggregates 0.2" (5mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 54min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:54 pm CDT.

How long on average sun shines in May?

In Dayton, the average sunshine duration in May is 8.6h.

How high is the UV index in May?

In Dayton, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Dayton, MN

Average temperature in May - Dayton, MN
  • Average high temperature in May: 65.3°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (19.2°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (6.8°F).

Average pressure in May
Dayton, MN

Average pressure in May - Dayton, MN
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in May
Dayton, MN

Average wind speed in May - Dayton, MN
  • Average wind speed in May: 8.3mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in May
Dayton, MN

Average humidity in May - Dayton, MN
  • Average humidity in May: 71%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (70%).

Average rainfall in May
Dayton, MN

Average rainfall in May - Dayton, MN
  • Average rainfall in May: 2.48"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in May
Dayton, MN

Average rainfall days in May - Dayton, MN
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is June (16.2 days).
The month with the least rainy days is January (2.5 days).

Average snowfall in May
Dayton, MN

Average snowfall in May - Dayton, MN
  • Average snowfall in May: 0.2"

The month with the highest snowfall is December (4.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Dayton, MN

Average snowfall days in May - Dayton, MN
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Dayton, MN

Average daylight in May / Average sunshine in May - Dayton, MN
  • 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in May
Dayton, MN

Average sunshine days in May - Dayton, MN
  • Average sunshine days in May: 14.4 days

The months with the most sunshine days are January and October (18.4 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in May
Dayton, MN

Average UV index in May - Dayton, MN
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in May
Dayton, MN

Average cloud cover in May - Dayton, MN
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
Dayton, MN

Average visibility in May - Dayton, MN
  • Average visibility in May: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Dayton, Minnesota, USA

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