May weather forecast
Heise Run, PA

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Weather in May

The last month of the spring, May, is a refreshing month in Heise Run, Pennsylvania, with an average temperature ranging between min 46°F (7.8°C) and max 66.9°F (19.4°C).

Temperature

In Heise Run, the average high-temperature in May rises, from a fresh 53.8°F (12.1°C) in April, to a refreshing 66.9°F (19.4°C). During May, Heise Run sees a mean low-temperature of 46°F (7.8°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

In May, the rain falls for 19 days. Throughout May, 2.72" (69mm) of precipitation is accumulated. In Heise Run, during the entire year, the rain falls for 175.2 days and collects up to 30.39" (772mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Heise Run. During 0.6 snowfall days, in May, Heise Run aggregates 0.35" (9mm) of snow. In Heise Run, during the entire year, snow falls for 80.1 days and aggregates up to 36.85" (936mm) of snow.

Daylight

In Heise Run, the average length of the day in May is 14h and 34min.
On the first day of May in Heise Run, sunrise is at 6:04 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:37 pm EDT.

Sunshine

In May, the average sunshine is 8.3h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Heise Run. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the usual temperature for Heise Run in May?

Heise Run in May has an average high-temperature of 66.9°F (19.4°C) and an average low-temperature of 46°F (7.8°C).

What is the average humidity in May in Heise Run?

In Heise Run, the average relative humidity in May is 79%.

How many days does it rain in May in Heise Run?

In Heise Run, in May, during 19 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

What is the last month it snows in Heise Run?

May is the last month it regularly snows in Heise Run, Pennsylvania. During 0.6 snowfall days, in May, Heise Run aggregates 0.35" (9mm) of snow.

What is the average length of the day in May in Heise Run?

In May, the average day length in Heise Run is 14h and 34min.

When are sunrise and sunset in May in Heise Run?

In May, on the first day of the month, sunrise is at 6:04 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:37 pm EDT.

How many hours of sunshine does Heise Run have in May?

In Heise Run, the average sunshine duration in May is 8.3h.

What are the months with the highest UV index in Heise Run?

The months with the highest UV index in Heise Run, Pennsylvania, are May through August, with an average maximum UV index of 5.

What is the UV index intensity in May in Heise Run?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from 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
Heise Run, PA

Average temperature in May - Heise Run, PA
  • Average high temperature in May: 66.9°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in May: 46°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

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Average pressure in May
Heise Run, PA

Average pressure in May - Heise Run, PA
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in May
Heise Run, PA

Average wind speed in May - Heise Run, PA
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in May
Heise Run, PA

Average humidity in May - Heise Run, PA
  • Average humidity in May: 79%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (78%).

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Average rainfall in May
Heise Run, PA

Average rainfall in May - Heise Run, PA
  • Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is November (1.97").

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Average rainfall days in May
Heise Run, PA

Average rainfall days in May - Heise Run, PA
  • Average rainfall days in May: 19 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (8.5 days).

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Average snowfall in May
Heise Run, PA

Average snowfall in May - Heise Run, PA
  • Average snowfall in May: 0.35"

The month with the highest snowfall is February (9.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Heise Run, PA

Average snowfall days in May - Heise Run, PA
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (18.7 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
Heise Run, PA

Average daylight in May / Average sunshine in May - Heise Run, PA
  • 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 2min

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

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Average sunshine days in May
Heise Run, PA

Average sunshine days in May - Heise Run, PA
  • Average sunshine days in May: 9.8 days

The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (7.4 days).

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Average UV index in May
Heise Run, PA

Average UV index in May - Heise Run, PA
  • 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 and December (UV index 1).

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Average cloud cover in May
Heise Run, PA

Average cloud cover in May - Heise Run, PA
  • Average cloud cover in May: 50

The month with the most cloud cover is December (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 39).

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Average visibility in May
Heise Run, PA

Average visibility in May - Heise Run, PA
  • Average visibility in May: 5mi

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

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Heise Run, Pennsylvania, USA

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