May weather forecast
Glen Castle, NY

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Weather in May

The last month of the spring, May, is a comfortable month in Glen Castle, New York, with an average temperature ranging between max 65.7°F (18.7°C) and min 46°F (7.8°C).

Temperature

The shift from April to May brings an increase in the average high-temperature, moving from a fresh 52.3°F (11.3°C) to an enjoyable 65.7°F (18.7°C). Glen Castle records an average nighttime low of 46°F (7.8°C) in May.

Humidity

The months with the lowest humidity in Glen Castle are April through July, with an average relative humidity of 80%.

Rainfall

In May, in Glen Castle, the rain falls for 18.7 days. Throughout May, 3.46" (88mm) of precipitation is accumulated. In Glen Castle, during the entire year, the rain falls for 173.5 days and collects up to 35.67" (906mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.8 snowfall days, in May, Glen Castle aggregates 0.47" (12mm) of snow. Throughout the year, there are 94.8 snowfall days, and 48.82" (1240mm) of snow is accumulated.

Daylight

In Glen Castle, the average length of the day in May is 14h and 36min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:03 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:32 pm EDT.

Sunshine

The average sunshine in May in Glen Castle is 8h.

UV index

The months with the highest UV index in Glen Castle are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 5 in May translates into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What is the average May temperature in Glen Castle?

The high-temperature, in May, in Glen Castle, is 65.7°F (18.7°C), while the low-temperature averages to 46°F (7.8°C).

What is the least humid month in Glen Castle?

The months with the lowest humidity in Glen Castle, New York, are April through July, with an average relative humidity of 80%.

What is the average humidity in May in Glen Castle?

In Glen Castle, New York, the average relative humidity in May is 80%.

How much does it rain in Glen Castle in May?

In May, in Glen Castle, New York, the rain falls for 18.7 days. Throughout May, 3.46" (88mm) of precipitation is accumulated.

What is the last month it snows in Glen Castle?

May is the last month it regularly snows in Glen Castle. During 0.8 snowfall days, in May, Glen Castle aggregates 0.47" (12mm) of snow.

How many hours of daylight does Glen Castle have in May?

In May, the average day length in Glen Castle, New York, is 14h and 36min.

When are sunrise and sunset in May in Glen Castle?

On the first day of May in Glen Castle, sunrise is at 5:58 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:32 pm EDT.

How many hours of sunshine does Glen Castle have in May?

In Glen Castle, the average sunshine duration in May is 8h.

When is the highest UV index in Glen Castle?

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

What is the UV index reading in May in Glen Castle?

The average daily maximum UV index in May in Glen Castle, New York, is 5. A UV Index estimate 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
Glen Castle, NY

Average temperature in May - Glen Castle, NY
  • Average high temperature in May: 65.7°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in May: 46°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure in May
Glen Castle, NY

Average pressure in May - Glen Castle, NY
  • Average pressure in May: 30"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).

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Average wind speed in May
Glen Castle, NY

Average wind speed in May - Glen Castle, NY
  • Average wind speed in May: 7.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in May
Glen Castle, NY

Average humidity in May - Glen Castle, NY
  • Average humidity in May: 80%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, June and July (80%).

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Average rainfall in May
Glen Castle, NY

Average rainfall in May - Glen Castle, NY
  • Average rainfall in May: 3.46"

The wettest month (with the highest rainfall) is June (3.58").
The driest months (with the least rainfall) are January and November (2.4").

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Average rainfall days in May
Glen Castle, NY

Average rainfall days in May - Glen Castle, NY
  • Average rainfall days in May: 18.7 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in May
Glen Castle, NY

Average snowfall in May - Glen Castle, NY
  • Average snowfall in May: 0.47"

The month with the highest snowfall is February (10.87").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Glen Castle, NY

Average snowfall days in May - Glen Castle, NY
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (21.6 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
Glen Castle, NY

Average daylight in May / Average sunshine in May - Glen Castle, NY
  • 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

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Average sunshine days in May
Glen Castle, NY

Average sunshine days in May - Glen Castle, NY
  • Average sunshine days in May: 9.8 days

The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (5.7 days).

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Average UV index in May
Glen Castle, NY

Average UV index in May - Glen Castle, 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 and December (UV index 1).

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Average cloud cover in May
Glen Castle, NY

Average cloud cover in May - Glen Castle, NY
  • Average cloud cover in May: 50

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 39).

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Average visibility in May
Glen Castle, NY

Average visibility in May - Glen Castle, NY
  • Average visibility in May: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

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Glen Castle, New York, USA

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