May weather forecast
Costonia, OH

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Weather in May

The last month of the spring, May, is a pleasant month in Costonia, Ohio, with an average temperature varying between 50.5°F (10.3°C) and 72.1°F (22.3°C).

Temperature

As Costonia welcomes May, the average high-temperature sees a rise, transitioning from a moderate 60.1°F (15.6°C) in April to a pleasant 72.1°F (22.3°C). May nights bring a significant cooling from the heat of the day, with averages of 50.5°F (10.3°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

The month with the most rainfall in Costonia is May, when the rain falls for 20.5 days and typically aggregates up to 3.19" (81mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Costonia. During 0.3 snowfall days, in May, Costonia aggregates 0.16" (4mm) of snow. Throughout the year, in Costonia, there are 56.5 snowfall days, and 19.41" (493mm) of snow is accumulated.

Daylight

The average length of the day in May in Costonia is 14h and 26min.
On the first day of May, sunrise is at 6:20 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:46 pm EDT.

Sunshine

In Costonia, Ohio, the average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 during May translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the average May temperature in Costonia?

During May, Costonia experiences an average high-temperature of 72.1°F (22.3°C) and a low-temperature of 50.5°F (10.3°C).

What is the average humidity in May in Costonia?

The average relative humidity in May in Costonia, Ohio, is 78%.

What is the rainiest month in Costonia?

May is the month with the most rainfall. Rain falls for 20.5 days and accumulates 3.19" (81mm) of precipitation.

How many days does it rain in May in Costonia?

In Costonia, in May, during 20.5 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

What is the last month it snows in Costonia?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Costonia aggregates 0.16" (4mm) of snow.

How many hours of daylight does Costonia have in May?

The average day length in May is 14h and 26min.

What time are sunrise and sunset in May in Costonia?

In May, on the first day of the month, sunrise is at 6:20 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:46 pm EDT.

How many hours of sunshine does Costonia have in May?

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

What is the UV index intensity in May in Costonia?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Costonia, OH

Average temperature in May - Costonia, OH
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

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Average pressure in May
Costonia, OH

Average pressure in May - Costonia, OH
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in May
Costonia, OH

Average wind speed in May - Costonia, OH
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in May
Costonia, OH

Average humidity in May - Costonia, OH
  • Average humidity in May: 78%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall in May
Costonia, OH

Average rainfall in May - Costonia, 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 November (2.17").

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Average rainfall days in May
Costonia, OH

Average rainfall days in May - Costonia, OH
  • Average rainfall days in May: 20.5 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.4 days).

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Average snowfall in May
Costonia, OH

Average snowfall in May - Costonia, OH
  • Average snowfall in May: 0.16"

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Costonia, OH

Average snowfall days in May - Costonia, OH
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (15.5 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
Costonia, OH

Average daylight in May / Average sunshine in May - Costonia, 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 18min).

  • Average sunshine in May: 8h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days in May
Costonia, OH

Average sunshine days in May - Costonia, OH
  • Average sunshine days in May: 8.8 days

The month with the most sunshine days is November (15.5 days).
The months with the least sunshine days are January and May (8.8 days).

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Average UV index in May
Costonia, OH

Average UV index in May - Costonia, OH
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Costonia, OH

Average cloud cover in May - Costonia, OH
  • Average cloud cover in May: 46

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in May
Costonia, OH

Average visibility in May - Costonia, OH
  • Average visibility in May: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).

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Costonia, Ohio, USA

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