May weather forecast
Troy, OH

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Weather in May

May, the last month of the spring in Troy, is an agreeable month, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 54.1°F (12.3°C).

Temperature

With the onset of May, Troy's weather sees a temperature rise, transitioning from a moderate 60.3°F (15.7°C) in April to a pleasant 71.2°F (21.8°C). Troy observes an average low-temperature of 54.1°F (12.3°C) during May nights.

Humidity

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

Rainfall

May is the month with the most rainfall. Rain falls for 18 days and accumulates 3.07" (78mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Troy aggregates 0.04" (1mm) of snow. Throughout the year, there are 34.4 snowfall days, and 8.74" (222mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 25min.
On the first day of May, sunrise is at 6:35 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:59 pm EDT.

Sunshine

In May, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the UV index of 5 transforms into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

In May, the average high-temperature and low-temperature are 71.2°F (21.8°C) and 54.1°F (12.3°C) respectively.

What is the average humidity in May?

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

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 18 days and typically aggregates up to 3.07" (78mm) of precipitation.

How many days does it rain in May?

In May, the rain falls for 18 days. Throughout May, 3.07" (78mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Troy aggregates 0.04" (1mm) of snow.

What is the average length of the day in May?

In Troy, Ohio, the average day length in May is 14h and 25min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:35 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:59 pm EDT.

How many hours of sunshine does Troy have in May?

In Troy, the average sunshine duration in May is 8.7h.

What is the UV index reading in May?

In Troy, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Troy, OH

Average temperature in May - Troy, 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 (32.4°F).

  • Average low temperature in May: 54.1°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in May
Troy, OH

Average pressure in May - Troy, OH
  • Average pressure in May: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Troy, OH

Average wind speed in May - Troy, OH
  • Average wind speed in May: 8.1mph

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

Average humidity in May
Troy, OH

Average humidity in May - Troy, OH
  • Average humidity in May: 79%

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

Average rainfall in May
Troy, OH

Average rainfall in May - Troy, OH
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.26").

Average rainfall days in May
Troy, OH

Average rainfall days in May - Troy, OH
  • 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 February (7 days).

Average snowfall in May
Troy, OH

Average snowfall in May - Troy, OH
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (2.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Troy, OH

Average snowfall days in May - Troy, OH
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Troy, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in May
Troy, OH

Average sunshine days in May - Troy, OH
  • Average sunshine days in May: 10.1 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in May
Troy, OH

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

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

Average cloud cover in May
Troy, OH

Average cloud cover in May - Troy, OH
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in May
Troy, OH

Average visibility in May - Troy, OH
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).

Troy, Ohio, USA

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