May weather forecast
Nelson, PA

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Weather in May

The last month of the spring, May, is a refreshing month in Nelson, Pennsylvania, with an average temperature varying between 45.7°F (7.6°C) and 66.7°F (19.3°C).

Temperature

The arrival of May brings an increase in high-temperatures, moving from a fresh 53.2°F (11.8°C) in April to a comfortable 66.7°F (19.3°C). Nighttime temperatures in May average to a chilly 45.7°F (7.6°C).

Humidity

The months with the lowest humidity in Nelson, Pennsylvania, are April through June, with an average relative humidity of 78%.

Rainfall

In Nelson, Pennsylvania, during May, the rain falls for 17.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 168.3 rainfall days, and 28.19" (716mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Nelson are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, in May, Nelson aggregates 0.2" (5mm) of snow. Throughout the year, there are 80.4 snowfall days, and 33.03" (839mm) of snow is accumulated.

Daylight

In May, the average length of the day in Nelson is 14h and 35min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:08 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:37 pm EDT.

Sunshine

In May, the average sunshine in Nelson is 8.2h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Nelson. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In May, an average UV index of 5 transforms into the following instructions:
Act with care - The need to guard against sun damage is communicated. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the usual temperature for Nelson in May?

Nelson in May has an average high-temperature of 66.7°F (19.3°C) and an average low-temperature of 45.7°F (7.6°C).

What are the least humid months in Nelson?

The months with the lowest humidity in Nelson, Pennsylvania, are April through June, with an average relative humidity of 78%.

What is the average humidity in May in Nelson?

The average relative humidity in May is 78%.

How much does it rain in Nelson in May?

In Nelson, Pennsylvania, in May, during 17.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

What is the last month it snows in Nelson?

May is the last month it regularly snows in Nelson, Pennsylvania. During 0.5 snowfall days, in May, Nelson aggregates 0.2" (5mm) of snow.

What is the average length of the day in May in Nelson?

In Nelson, Pennsylvania, the average day length in May is 14h and 35min.

What time are sunrise and sunset in May in Nelson?

On the first day of May in Nelson, sunrise is at 6:03 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:37 pm EDT.

How long on average sun shines in May in Nelson?

In Nelson, the average sunshine duration in May is 8.2h.

What are the months with the highest UV index in Nelson?

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

How high is the UV index in May in Nelson?

In May, the average daily maximum UV index in Nelson, Pennsylvania, is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
Nelson, PA

Average temperature in May - Nelson, PA
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in May: 45.7°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in May
Nelson, PA

Average pressure in May - Nelson, PA
  • 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 (29.94"Hg).

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Average wind speed in May
Nelson, PA

Average wind speed in May - Nelson, PA
  • Average wind speed in May: 7.6mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in May
Nelson, PA

Average humidity in May - Nelson, PA
  • Average humidity in May: 78%

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

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Average rainfall in May
Nelson, PA

Average rainfall in May - Nelson, PA
  • Average rainfall in May: 2.56"

The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is November (1.81").

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Average rainfall days in May
Nelson, PA

Average rainfall days in May - Nelson, PA
  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (7.2 days).

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Average snowfall in May
Nelson, PA

Average snowfall in May - Nelson, PA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Nelson, PA

Average snowfall days in May - Nelson, PA
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (18.8 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
Nelson, PA

Average daylight in May / Average sunshine in May - Nelson, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 6min).

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Average sunshine days in May
Nelson, PA

Average sunshine days in May - Nelson, PA
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7.1 days).

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Average UV index in May
Nelson, PA

Average UV index in May - Nelson, 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
Nelson, PA

Average cloud cover in May - Nelson, PA
  • Average cloud cover in May: 50

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).

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Average visibility in May
Nelson, PA

Average visibility in May - Nelson, PA
  • 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).

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Nelson, Pennsylvania, USA

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