May weather forecast
South Vienna, OH

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Weather in May

May, the last month of the spring in South Vienna, is an agreeable month, with an average temperature fluctuating between 71.2°F (21.8°C) and 54.3°F (12.4°C).

Temperature

The start of May signals an increase in the average high-temperature, moving from a mild 60.6°F (15.9°C) in April to an agreeable 71.2°F (21.8°C). Throughout May nights, South Vienna experiences a consistent temperature average of 54.3°F (12.4°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

The month with the most rainfall is May, when the rain falls for 18.8 days and typically aggregates up to 3.19" (81mm) of precipitation.

Snowfall

In South Vienna, snow does not fall in May through October.

Daylight

In May, the average length of the day in South Vienna is 14h and 24min.
On the first day of May, sunrise is at 6:33 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:56 pm EDT.

Sunshine

The average sunshine in May in South Vienna is 8.9h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, a regular UV index of 5 translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What are May temperatures in South Vienna?

May temperatures in South Vienna, Ohio, vary between a high-temperature of 71.2°F (21.8°C) and a low-temperature of 54.3°F (12.4°C).

What is the average humidity in May in South Vienna?

The average relative humidity in May in South Vienna, Ohio, is 79%.

What is the rainiest month in South Vienna?

May is the month with the most rainfall. Rain falls for 18.8 days and accumulates 3.19" (81mm) of precipitation.

How much does it rain in South Vienna in May?

In South Vienna, during May, the rain falls for 18.8 days and regularly aggregates up to 3.19" (81mm) of precipitation.

When it does not snow in South Vienna?

May through October are months without snowfall in South Vienna, Ohio.

Does it snow in South Vienna in May?

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

How many hours of daylight does South Vienna have in May?

In South Vienna, the average day length in May is 14h and 24min.

When is the sunrise / sunset in May in South Vienna?

On the first day of May in South Vienna, sunrise is at 6:33 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:56 pm EDT.

How many hours of sunshine does South Vienna have in May?

In South Vienna, the average sunshine duration in May is 8.9h.

How high is the UV index in May in South Vienna?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe 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
South Vienna, OH

Average temperature in May - South Vienna, OH
  • Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in May: 54.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in May
South Vienna, OH

Average pressure in May - South Vienna, 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 (29.94"Hg).

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Average wind speed in May
South Vienna, OH

Average wind speed in May - South Vienna, OH
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in May
South Vienna, OH

Average humidity in May - South Vienna, OH
  • Average humidity in May: 79%

The months with the highest relative humidity are January, February and December (83%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in May
South Vienna, OH

Average rainfall in May - South Vienna, OH
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.34").

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Average rainfall days in May
South Vienna, OH

Average rainfall days in May - South Vienna, 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 January (7.3 days).

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Average snowfall in May
South Vienna, OH

Average snowfall in May - South Vienna, OH
  • Average snowfall in May: 0"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
South Vienna, OH

Average snowfall days in May - South Vienna, OH
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
South Vienna, OH

Average daylight in May / Average sunshine in May - South Vienna, OH
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in May
South Vienna, OH

Average sunshine days in May - South Vienna, OH
  • Average sunshine days in May: 9.6 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (9.6 days).

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Average UV index in May
South Vienna, OH

Average UV index in May - South Vienna, 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
South Vienna, OH

Average cloud cover in May - South Vienna, OH
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in May
South Vienna, OH

Average visibility in May - South Vienna, 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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South Vienna, Ohio, USA

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