May weather forecast
New Derry, PA

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Weather in May

The last month of the spring, May, is a pleasant month in New Derry, Pennsylvania, with an average temperature varying between 49.6°F (9.8°C) and 70.2°F (21.2°C).

Temperature

With the onset of May, New Derry sees a temperature rise, with the average high-temperature moving from April's moderate 59°F (15°C) to an agreeable 70.2°F (21.2°C). New Derry's average low-temperature in the month of May is recorded at a chilly 49.6°F (9.8°C).

Humidity

In New Derry, Pennsylvania, the average relative humidity in May is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 20.4 days and accumulates 3.03" (77mm) of precipitation.

Snowfall

In New Derry, Pennsylvania, snow does not fall in May through September.

Daylight

In New Derry, the average length of the day in May is 14h and 26min.
On the first day of May, sunrise is at 6:15 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:40 pm EDT.

Sunshine

The average sunshine in May in New Derry is 8.8h.

UV index

In New Derry, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the UV index of 5 transforms into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the temperature in May in New Derry?

In New Derry, in May, the average high-temperature is 70.2°F (21.2°C), and the average low-temperature is 49.6°F (9.8°C).

What is the average humidity in May in New Derry?

The average relative humidity in May in New Derry, Pennsylvania, is 79%.

What is the rainiest month in New Derry?

The month with the most rainfall in New Derry is May, when the rain falls for 20.4 days and typically aggregates up to 3.03" (77mm) of precipitation.

How many days does it rain in May in New Derry?

In New Derry, during May, the rain falls for 20.4 days and regularly aggregates up to 3.03" (77mm) of precipitation.

When it does not snow in New Derry?

May through September are months without snowfall.

Does it snow in New Derry in May?

In May, in New Derry, Pennsylvania, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does New Derry have in May?

The average day length in May in New Derry, Pennsylvania, is 14h and 26min.

When are sunrise and sunset in May in New Derry?

In May, on the first day of the month, sunrise is at 6:15 am and sunset at 8:13 pm. On the last day of the month, in New Derry, sunrise is at 5:49 am and sunset at 8:40 pm EDT.

How many hours of sunshine does New Derry have in May?

The average sunshine duration in May in New Derry, Pennsylvania, is 8.8h.

How high is the UV index in May in New Derry?

The average daily maximum UV index in May in New Derry is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from 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
New Derry, PA

Average temperature in May - New Derry, PA
  • Average high temperature in May: 70.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in May: 49.6°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in May
New Derry, PA

Average pressure in May - New Derry, PA
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in May
New Derry, PA

Average wind speed in May - New Derry, PA
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in May
New Derry, PA

Average humidity in May - New Derry, PA
  • Average humidity in May: 79%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, June, July and August (78%).

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Average rainfall in May
New Derry, PA

Average rainfall in May - New Derry, PA
  • Average rainfall in May: 3.03"

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

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Average rainfall days in May
New Derry, PA

Average rainfall days in May - New Derry, PA
  • Average rainfall days in May: 20.4 days

The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall in May
New Derry, PA

Average snowfall in May - New Derry, PA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (4.96").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
New Derry, PA

Average snowfall days in May - New Derry, PA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (17.6 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
New Derry, PA

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in May
New Derry, PA

Average sunshine days in May - New Derry, PA
  • Average sunshine days in May: 8.8 days

The month with the most sunshine days is November (14.4 days).
The month with the least sunshine days is January (7 days).

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Average UV index in May
New Derry, PA

Average UV index in May - New Derry, PA
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
New Derry, PA

Average cloud cover in May - New Derry, PA
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in May
New Derry, PA

Average visibility in May - New Derry, PA
  • Average visibility in May: 5mi

The month with the highest visibility is April (6mi).
The month with the lowest visibility is January (4mi).

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New Derry, Pennsylvania, USA

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