May weather forecast
Glen Rock, PA

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Weather in May

The last month of the spring, May, is an agreeable month in Glen Rock, Pennsylvania, with an average temperature fluctuating between 70.3°F (21.3°C) and 53.1°F (11.7°C).

Temperature

The shift from April to May sees an increase in the average high-temperature, transitioning from a mild 60.4°F (15.8°C) to an agreeable 70.3°F (21.3°C). During May, the nighttime temperature in Glen Rock averages of 53.1°F (11.7°C).

Humidity

May is the most humid month, with an average relative humidity of 81%.

Rainfall

In May, in Glen Rock, the rain falls for 16.8 days. Throughout May, 2.56" (65mm) of precipitation is accumulated. Throughout the year, in Glen Rock, Pennsylvania, there are 145.3 rainfall days, and 24.88" (632mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Glen Rock aggregates 0.04" (1mm) of snow. In Glen Rock, during the entire year, snow falls for 19.2 days and aggregates up to 10.59" (269mm) of snow.

Daylight

The average length of the day in May in Glen Rock, Pennsylvania, is 14h and 23min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:01 pm. On the last day of May, in Glen Rock, Pennsylvania, sunrise is at 5:40 am and sunset at 8:28 pm EDT.

Sunshine

In May, the average sunshine in Glen Rock is 8.5h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What is the average May temperature in Glen Rock?

The average high-temperature and low-temperature during May are 70.3°F (21.3°C) and 53.1°F (11.7°C) respectively.

What is the most humid month in Glen Rock?

With an average relative humidity of 81%, May is the most humid month.

What is the average humidity in May in Glen Rock?

In May, the average relative humidity in Glen Rock, Pennsylvania, is 81%.

How many days does it rain in May in Glen Rock?

In Glen Rock, Pennsylvania, during May, the rain falls for 16.8 days and regularly aggregates up to 2.56" (65mm) of precipitation.

What is the last month it snows in Glen Rock?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Glen Rock aggregates 0.04" (1mm) of snow.

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

In Glen Rock, Pennsylvania, the average day length in May is 14h and 23min.

When are sunrise and sunset in May in Glen Rock?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:28 pm EDT.

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

In Glen Rock, Pennsylvania, the average sunshine duration in May is 8.5h.

How high is the UV index in May in Glen Rock?

The average daily maximum UV index in May in Glen Rock, Pennsylvania, is 5. A UV Index value 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Glen Rock, PA

Average temperature in May - Glen Rock, PA
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in May
Glen Rock, PA

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in May
Glen Rock, PA

Average wind speed in May - Glen Rock, PA
  • Average wind speed in May: 6.8mph

The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in May
Glen Rock, PA

Average humidity in May - Glen Rock, PA
  • Average humidity in May: 81%

The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April and November (76%).

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Average rainfall in May
Glen Rock, PA

Average rainfall in May - Glen Rock, PA
  • Average rainfall in May: 2.56"

The wettest month (with the highest rainfall) is August (3.03").
The driest month (with the least rainfall) is February (1.38").

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Average rainfall days in May
Glen Rock, PA

Average rainfall days in May - Glen Rock, PA
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in May
Glen Rock, PA

Average snowfall in May - Glen Rock, PA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Glen Rock, PA

Average snowfall days in May - Glen Rock, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (5.5 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 Rock, PA

Average daylight in May / Average sunshine in May - Glen Rock, PA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in May
Glen Rock, PA

Average sunshine days in May - Glen Rock, PA
  • Average sunshine days in May: 11.1 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in May
Glen Rock, PA

Average UV index in May - Glen Rock, PA
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Glen Rock, PA

Average cloud cover in May - Glen Rock, PA
  • Average cloud cover in May: 46

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in May
Glen Rock, PA

Average visibility in May - Glen Rock, PA
  • Average visibility in May: 5mi

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

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Glen Rock, Pennsylvania, USA

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