May weather forecast
Dayton, MD

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Weather in May

May, the last month of the spring in Dayton, is an agreeable month, with an average temperature fluctuating between 72.7°F (22.6°C) and 55.4°F (13°C).

Temperature

May's onset brings a temperature rise, moving from a comfortable 63.1°F (17.3°C) in April to an agreeable 72.7°F (22.6°C). An average low-temperature of 55.4°F (13°C) is anticipated throughout the nights in Dayton during May.

Humidity

The months with the highest humidity are May and October, with an average relative humidity of 77%.

Rainfall

In May, in Dayton, Maryland, the rain falls for 18 days. Throughout May, 3.15" (80mm) of precipitation is accumulated. In Dayton, during the entire year, the rain falls for 159.3 days and collects up to 30.31" (770mm) of precipitation.

Snowfall

April through October are months without snowfall in Dayton.

Daylight

In Dayton, the average length of the day in May is 14h and 20min.
On the first day of the month, sunrise is at 6:08 am and sunset at 8:01 pm. On the last day of May, in Dayton, sunrise is at 5:43 am and sunset at 8:28 pm EDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 6 during May translates into these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What is the usual temperature for Dayton in May?

The average high-temperature, in May, in Dayton, is 72.7°F (22.6°C), while the average low-temperature is 55.4°F (13°C).

What are the most humid months in Dayton?

May and October, with an average relative humidity of 77%, are most humid months in Dayton.

What is the average humidity in May in Dayton?

In Dayton, the average relative humidity in May is 77%.

How much does it rain in Dayton in May?

In May, the rain falls for 18 days. Throughout May, 3.15" (80mm) of precipitation is accumulated.

When it does not snow in Dayton?

April through October are months without snowfall in Dayton.

What is the average length of the day in May in Dayton?

In May, the average day length in Dayton, Maryland, is 14h and 20min.

When are sunrise and sunset in May in Dayton?

On the first day of May in Dayton, sunrise is at 6:08 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:28 pm EDT.

How long on average sun shines in May in Dayton?

The average sunshine duration in May is 8.9h.

What are the months with the highest UV index in Dayton?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

How high is the UV index in May in Dayton?

In Dayton, Maryland, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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, MD

Average temperature in May - Dayton, MD
  • Average high temperature in May: 72.7°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in May: 55.4°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in May
Dayton, MD

Average pressure in May - Dayton, MD
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in May
Dayton, MD

Average wind speed in May - Dayton, MD
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
Dayton, MD

Average humidity in May - Dayton, MD
  • Average humidity in May: 77%

The months with the highest relative humidity are May and October (77%).
The months with the lowest relative humidity are April and July (72%).

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Average rainfall in May
Dayton, MD

Average rainfall in May - Dayton, MD
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in May
Dayton, MD

Average rainfall days in May - Dayton, MD
  • Average rainfall days in May: 18 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in May
Dayton, MD

Average snowfall in May - Dayton, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Dayton, MD

Average snowfall days in May - Dayton, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Dayton, MD
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).

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Average sunshine days in May
Dayton, MD

Average sunshine days in May - Dayton, MD
  • Average sunshine days in May: 11 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).

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Average UV index in May
Dayton, MD

Average UV index in May - Dayton, MD
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Dayton, MD

Average cloud cover in May - Dayton, MD
  • Average cloud cover in May: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Dayton, MD

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

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

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Dayton, Maryland, USA

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