May Weather forecast - Spring forecast

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

The Maimi and Mad rivers converge to flow through Dayton city, Ohio

Weather in May

May, the last month of the spring in Dayton, is an agreeable month, with an average temperature ranging between max 71.2°F (21.8°C) and min 54.7°F (12.6°C).

Temperature

In May, the average high-temperature increases from a comfortable 61.3°F (16.3°C) in April to a pleasant 71.2°F (21.8°C). In May, the average low-temperature is 54.7°F (12.6°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.8 days and accumulates 3.35" (85mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day in Dayton, Ohio, is 14h and 23min.
On the first day of the month, sunrise is at 6:37 am and sunset at 8:30 pm. On the last day of May, sunrise is at 6:11 am and sunset at 8:57 pm EDT.

Sunshine

The average sunshine in May is 9h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

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FAQ

What is the temperature in May in Dayton?

In May, in Dayton, the average high-temperature is 71.2°F (21.8°C), and the average low-temperature is 54.7°F (12.6°C).

What is the average humidity in May in Dayton?

In Dayton, the average relative humidity in May is 79%.

What is the wettest month in Dayton?

The month with the most rainfall in Dayton, Ohio, is May, when the rain falls for 18.8 days and typically aggregates up to 3.35" (85mm) of precipitation.

How many days does it rain in May in Dayton?

In May, the rain falls for 18.8 days. Throughout May, 3.35" (85mm) of precipitation is accumulated.

When it does not snow in Dayton?

May through September are months without snowfall in Dayton, Ohio.

Does it snow in Dayton in May?

In May, it doesn't snow. April is the latest month when it typically snows.

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

In Dayton, Ohio, the average day length in May is 14h and 23min.

When are sunrise and sunset in May in Dayton?

In May, on the first day of the month, sunrise is at 6:37 am and sunset at 8:30 pm. On the last day of the month, in Dayton, Ohio, sunrise is at 6:11 am and sunset at 8:57 pm EDT.

How many hours of sunshine does Dayton have in May?

In May, the average sunshine duration is 9h.

How high is the UV index in May in Dayton?

The average daily maximum UV index in May in Dayton is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

61.3°F 16.3°C

71.2°F 21.8°C

78.4°F 25.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.3mph 16.6km/h

8.3mph 13.4km/h

7.5mph 12.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

12.7

9.8

11.1

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Dayton, OH

Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (33.6°F).

Average low temperature in May: 54.7°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in May
Dayton, OH

Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Dayton, OH

Average wind speed in May: 7.7mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in May
Dayton, OH

Average humidity in May: 79%

The months with the highest relative humidity are January, February and December (82%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in May
Dayton, OH

Average rainfall in May: 3.35"

The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are September and November (1.5").

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Average rainfall days in May
Dayton, OH

Average rainfall days in May: 18.8 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (7.5 days).

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Average snowfall in May
Dayton, OH

Average snowfall in May: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Dayton, OH

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May: 14h and 23min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

Average sunshine in May: 9h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in May
Dayton, OH

Average sunshine days in May: 9.8 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (9.8 days).

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Average UV index in May
Dayton, OH

Average UV index in May: 5

The months with the highest UV index are 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, OH

Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in May
Dayton, OH

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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May weather forecast
Dayton, OH

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