May weather forecast
Unionville, NY

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Weather in May

May, the last month of the spring in Unionville, is a pleasant month, with an average temperature varying between 68.2°F (20.1°C) and 47.8°F (8.8°C).

Temperature

The shift into May brings an increase in the average high-temperature, moving from a mild 55.9°F (13.3°C) in April to a pleasant 68.2°F (20.1°C). Unionville's nighttime temperature during May is consistently averaged at a chilly 47.8°F (8.8°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

In Unionville, New York, during May, the rain falls for 17.3 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Unionville, during the entire year, the rain falls for 153.7 days and collects up to 30.75" (781mm) of precipitation.

Snowfall

Months with snowfall in Unionville are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Unionville aggregates 0.47" (12mm) of snow. Throughout the year, there are 32.5 snowfall days, and 19.13" (486mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 31min.
On the first day of May, sunrise is at 5:54 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:24 pm EDT.

Sunshine

In May, the average sunshine 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 value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In May, in Unionville, the average high-temperature is 68.2°F (20.1°C), and the average low-temperature is 47.8°F (8.8°C).

What is the average humidity in May?

In May, the average relative humidity is 79%.

How many days does it rain in May?

In May, the rain falls for 17.3 days. Throughout May, 3.15" (80mm) 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, Unionville aggregates 0.47" (12mm) of snow.

How many hours of daylight does Unionville have in May?

In May, the average day length is 14h and 31min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:54 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:24 pm EDT.

How many hours of sunshine does Unionville have in May?

In Unionville, the average sunshine duration in May 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 Unionville?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Unionville, NY

Average temperature in May - Unionville, NY
  • Average high temperature in May: 68.2°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in May: 47.8°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in May
Unionville, NY

Average pressure in May - Unionville, NY
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Unionville, NY

Average wind speed in May - Unionville, NY
  • Average wind speed in May: 5.8mph

The windiest months (with the highest average wind speed) are January, February and March (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in May
Unionville, NY

Average humidity in May - Unionville, NY
  • Average humidity in May: 79%

The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in May
Unionville, NY

Average rainfall in May - Unionville, NY
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in May
Unionville, NY

Average rainfall days in May - Unionville, NY
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in May
Unionville, NY

Average snowfall in May - Unionville, NY
  • Average snowfall in May: 0.47"

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Unionville, NY

Average snowfall days in May - Unionville, NY
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is February (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Unionville, NY

Average daylight in May / Average sunshine in May - Unionville, NY
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in May
Unionville, NY

Average sunshine days in May - Unionville, NY
  • Average sunshine days in May: 12 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (11 days).

Average UV index in May
Unionville, NY

Average UV index in May - Unionville, NY
  • 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, February, March, November and December (UV index 2).

Average cloud cover in May
Unionville, NY

Average cloud cover in May - Unionville, NY
  • Average cloud cover in May: 50

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in May
Unionville, NY

Average visibility in May - Unionville, NY
  • 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).

Unionville, New York, USA

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