May weather forecast
Troy, PA

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Weather in May

May, the last month of the spring in Troy, is a comfortable month, with an average temperature ranging between max 66.7°F (19.3°C) and min 46.6°F (8.1°C).

Temperature

Noticing a change, the average high-temperature during May moves from April's fresh 54°F (12.2°C) to a comfortable 66.7°F (19.3°C). The average low-temperature of 46.6°F (8.1°C) is witnessed during May.

Humidity

The average relative humidity in May is 79%.

Rainfall

In May, the rain falls for 19 days. Throughout May, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 171.9 rainfall days, and 28.54" (725mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Troy aggregates 0.28" (7mm) of snow. In Troy, during the entire year, snow falls for 74.9 days and aggregates up to 30.08" (764mm) of snow.

Daylight

In Troy, the average length of the day in May is 14h and 34min.
On the first day of May, sunrise is at 6:02 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:35 pm EDT.

Sunshine

In Troy, the average sunshine in May is 8.1h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the UV index of 5 transforms into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

An average high-temperature, in May, in Troy, is 66.7°F (19.3°C) and the average low-temperature is 46.6°F (8.1°C).

What is the average humidity in May?

In May, the average relative humidity is 79%.

How much does it rain in May?

In Troy, in May, it is raining for 19 days, with typically 2.76" (70mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows in Troy. During 0.6 snowfall days, in May, Troy aggregates 0.28" (7mm) of snow.

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

In Troy, the average day length in May is 14h and 34min.

When is the sunrise / sunset in May in Troy?

On the first day of May, sunrise is at 6:02 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:35 pm EDT.

How many hours of sunshine does Troy have in May?

In May, the average sunshine duration is 8.1h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index intensity 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 unsafe exposure to Sun's UV rays.
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, PA

Average temperature in May - Troy, PA
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in May: 46.6°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in May
Troy, PA

Average pressure in May - Troy, PA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Troy, PA

Average wind speed in May - Troy, PA
  • Average wind speed in May: 6.9mph

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

Average humidity in May
Troy, PA

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

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (78%).

Average rainfall in May
Troy, PA

Average rainfall in May - Troy, PA
  • Average rainfall in May: 2.76"

The wettest months (with the highest rainfall) are April and July (2.91").
The driest months (with the least rainfall) are January and November (1.77").

Average rainfall days in May
Troy, PA

Average rainfall days in May - Troy, PA
  • Average rainfall days in May: 19 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (8.6 days).

Average snowfall in May
Troy, PA

Average snowfall in May - Troy, PA
  • Average snowfall in May: 0.28"

The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Troy, PA

Average snowfall days in May - Troy, PA
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (18.3 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, PA

Average daylight in May / Average sunshine in May - Troy, PA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).

Average sunshine days in May
Troy, PA

Average sunshine days in May - Troy, PA
  • Average sunshine days in May: 9.8 days

The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (7.7 days).

Average UV index in May
Troy, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Troy, PA

Average cloud cover in May - Troy, PA
  • Average cloud cover in May: 51

The months with the most cloud cover are January, February and December (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 39).

Average visibility in May
Troy, PA

Average visibility in May - Troy, PA
  • Average visibility in May: 5mi

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

Troy, Pennsylvania, USA

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