May weather forecast
Harmonyville, PA

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Weather in May

May, the last month of the spring in Harmonyville, is a pleasant month, with an average temperature fluctuating between 51.8°F (11°C) and 70.5°F (21.4°C).

Temperature

May's arrival coincides with a temperature rise, moving from April's mild 59.7°F (15.4°C) to a pleasant 70.5°F (21.4°C). Harmonyville, during May, witnesses an average low-temperature of 51.8°F (11°C).

Humidity

In Harmonyville, the average relative humidity in May is 80%.

Rainfall

In Harmonyville, Pennsylvania, in May, it is raining for 17.4 days, with typically 2.6" (66mm) of accumulated precipitation. In Harmonyville, Pennsylvania, during the entire year, the rain falls for 162.2 days and collects up to 27.87" (708mm) of precipitation.

Snowfall

Months with snowfall in Harmonyville, Pennsylvania, are January through May, October through December. May is the last month it regularly snows in Harmonyville. During 0.2 snowfall days, in May, Harmonyville aggregates 0.28" (7mm) of snow. In Harmonyville, Pennsylvania, during the entire year, snow falls for 22.9 days and aggregates up to 10.35" (263mm) of snow.

Daylight

The average length of the day in May in Harmonyville, Pennsylvania, is 14h and 25min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:25 pm EDT.

Sunshine

In May, the average sunshine is 8.4h.

UV index

The months with the highest UV index in Harmonyville are May through July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What are the temperatures in Harmonyville in May?

The average high-temperature, in May, in Harmonyville, is 70.5°F (21.4°C), while the average low-temperature is 51.8°F (11°C).

What is the average humidity in May in Harmonyville?

In Harmonyville, Pennsylvania, the average relative humidity in May is 80%.

How much does it rain in Harmonyville in May?

In Harmonyville, in May, it is raining for 17.4 days, with typically 2.6" (66mm) of accumulated precipitation.

What is the last month it snows in Harmonyville?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Harmonyville aggregates 0.28" (7mm) of snow.

How many hours of daylight does Harmonyville have in May?

The average day length in May in Harmonyville, Pennsylvania, is 14h and 25min.

When are sunrise and sunset in May in Harmonyville?

On the first day of May in Harmonyville, Pennsylvania, sunrise is at 6:01 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:25 pm EDT.

How many hours of sunshine does Harmonyville have in May?

The average sunshine duration in May is 8.4h.

What is the month with the highest UV index in Harmonyville?

The months with the highest UV index in Harmonyville, Pennsylvania, are May through July, with an average maximum UV index of 6.

What is the UV index intensity in May in Harmonyville?

In May, the average daily maximum UV index in Harmonyville is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Harmonyville, PA

Average temperature in May - Harmonyville, PA
  • Average high temperature in May: 70.5°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in May: 51.8°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure in May
Harmonyville, PA

Average pressure in May - Harmonyville, 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
Harmonyville, PA

Average wind speed in May - Harmonyville, PA
  • Average wind speed in May: 6.3mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in May
Harmonyville, PA

Average humidity in May - Harmonyville, PA
  • Average humidity in May: 80%

The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in May
Harmonyville, PA

Average rainfall in May - Harmonyville, PA
  • Average rainfall in May: 2.6"

The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in May
Harmonyville, PA

Average rainfall days in May - Harmonyville, PA
  • Average rainfall days in May: 17.4 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (9.4 days).

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Average snowfall in May
Harmonyville, PA

Average snowfall in May - Harmonyville, PA
  • Average snowfall in May: 0.28"

The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Harmonyville, PA

Average snowfall days in May - Harmonyville, PA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (7.3 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
Harmonyville, PA

Average daylight in May / Average sunshine in May - Harmonyville, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in May
Harmonyville, PA

Average sunshine days in May - Harmonyville, PA
  • Average sunshine days in May: 11.6 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (11.6 days).

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Average UV index in May
Harmonyville, PA

Average UV index in May - Harmonyville, PA
  • Average UV index in May: 6

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

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Average cloud cover in May
Harmonyville, PA

Average cloud cover in May - Harmonyville, PA
  • Average cloud cover in May: 47

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in May
Harmonyville, PA

Average visibility in May - Harmonyville, PA
  • Average visibility in May: 5mi

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

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Harmonyville, Pennsylvania, USA

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