May weather forecast
Westtown, NY

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Weather in May

May, the last month of the spring in Westtown, is an agreeable month, with an average temperature fluctuating between 47.8°F (8.8°C) and 68.2°F (20.1°C).

Temperature

The start of May is characterized by an increase in the average high-temperature, transitioning from a refreshing 55.9°F (13.3°C) in April to an agreeable 68.2°F (20.1°C). Westtown's nighttime temperature in May falls to an average of 47.8°F (8.8°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

In Westtown, in May, it is raining for 17.3 days, with typically 3.15" (80mm) of accumulated precipitation. Throughout the year, in Westtown, there are 153.7 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Westtown aggregates 0.47" (12mm) of snow. In Westtown, New York, during the entire year, snow falls for 32.5 days and aggregates up to 19.13" (486mm) of snow.

Daylight

The average length of the day in May 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

The average sunshine in May is 8.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 5 in May leads to these guidelines:
Be vigilant - Preventing sunburn is recommended. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In Westtown, in May, 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 Westtown, in May, it is raining for 17.3 days, with typically 3.15" (80mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Westtown aggregates 0.47" (12mm) of snow.

What is the average length of the day 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 Westtown have in May?

The average sunshine duration in May is 8.1h.

When is the highest UV index?

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

What is the UV index intensity in May?

The average daily maximum UV index in May in Westtown is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Westtown, NY

Average temperature in May - Westtown, 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
Westtown, NY

Average pressure in May - Westtown, 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
Westtown, NY

Average wind speed in May - Westtown, 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
Westtown, NY

Average humidity in May - Westtown, 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
Westtown, NY

Average rainfall in May - Westtown, 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
Westtown, NY

Average rainfall days in May - Westtown, 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
Westtown, NY

Average snowfall in May - Westtown, 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
Westtown, NY

Average snowfall days in May - Westtown, 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
Westtown, NY

Average daylight in May / Average sunshine in May - Westtown, 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
Westtown, NY

Average sunshine days in May - Westtown, 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
Westtown, NY

Average UV index in May - Westtown, 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
Westtown, NY

Average cloud cover in May - Westtown, 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
Westtown, NY

Average visibility in May - Westtown, 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).

Westtown, New York, USA

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