May weather forecast
Longwood, PA

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Weather in May

The last month of the spring, May, is a pleasant month in Longwood, Pennsylvania, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 54°F (12.2°C).

Temperature

The arrival of May brings an increase in high-temperatures, moving from a refreshing 61°F (16.1°C) in April to a pleasant 71.1°F (21.7°C). Longwood throughout May, experiences an average nighttime temperature of 54°F (12.2°C).

Humidity

The average relative humidity in May is 78%.

Rainfall

In Longwood, during May, the rain falls for 14.4 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Longwood, during the entire year, the rain falls for 135 days and collects up to 17.76" (451mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Longwood. May is the last month it regularly snows in Longwood. During 0.1 snowfall days, in May, Longwood aggregates 0.12" (3mm) of snow. In Longwood, during the entire year, snow falls for 16.6 days and aggregates up to 5.47" (139mm) of snow.

Daylight

In Longwood, Pennsylvania, the average length of the day in May is 14h and 24min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:36 am and sunset at 8:24 pm EDT.

Sunshine

The average sunshine in May in Longwood is 8.6h.

UV index

The months with the highest UV index in Longwood, Pennsylvania, are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What are the temperatures in Longwood in May?

The average high-temperature and low-temperature in Longwood during May are 71.1°F (21.7°C) and 54°F (12.2°C) respectively.

What is the average humidity in May in Longwood?

In Longwood, Pennsylvania, the average relative humidity in May is 78%.

How many days does it rain in May in Longwood?

In Longwood, Pennsylvania, during May, the rain falls for 14.4 days and regularly aggregates up to 1.65" (42mm) of precipitation.

What is the last month it snows in Longwood?

May is the last month it regularly snows in Longwood, Pennsylvania. During 0.1 snowfall days, in May, Longwood aggregates 0.12" (3mm) of snow.

How many hours of daylight does Longwood have in May?

In Longwood, Pennsylvania, the average day length in May is 14h and 24min.

When is the sunrise / sunset in May in Longwood?

On the first day of May in Longwood, Pennsylvania, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:24 pm EDT.

How long on average sun shines in May in Longwood?

In Longwood, Pennsylvania, the average sunshine duration in May is 8.6h.

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

The months with the highest UV index in Longwood are May through August, with an average maximum UV index of 6.

What is the UV index reading in May in Longwood?

In May, the average daily maximum UV index in Longwood is 6. A UV Index value of 6 to 7 symbolizes a high 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
Longwood, PA

Average temperature in May - Longwood, PA
  • Average high temperature in May: 71.1°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in May: 54°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in May
Longwood, PA

Average pressure in May - Longwood, 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
Longwood, PA

Average wind speed in May - Longwood, PA
  • Average wind speed in May: 6.7mph

The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in May
Longwood, PA

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

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in May
Longwood, PA

Average rainfall in May - Longwood, PA
  • Average rainfall in May: 1.65"

The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is November (1.06").

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Average rainfall days in May
Longwood, PA

Average rainfall days in May - Longwood, PA
  • Average rainfall days in May: 14.4 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (6.6 days).

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Average snowfall in May
Longwood, PA

Average snowfall in May - Longwood, PA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is March (1.5").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Longwood, PA

Average snowfall days in May - Longwood, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (5.2 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
Longwood, PA

Average daylight in May / Average sunshine in May - Longwood, 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 4min

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 48min).

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Average sunshine days in May
Longwood, PA

Average sunshine days in May - Longwood, PA
  • Average sunshine days in May: 14.1 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in May
Longwood, PA

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

The months with the highest UV index are May, 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
Longwood, PA

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

The months with the most cloud cover are February, March and May (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in May
Longwood, PA

Average visibility in May - Longwood, 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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Longwood, Pennsylvania, USA

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