May weather forecast
Emmaus, PA

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Weather in May

May, the last month of the spring in Emmaus, is a pleasant month, with an average temperature varying between 69.4°F (20.8°C) and 50.5°F (10.3°C).

Temperature

Emmaus's transition into May is marked by a temperature shift, moving from a moderate 58.3°F (14.6°C) in April to a pleasant 69.4°F (20.8°C). In the month of May, the temperature in Emmaus generally rests at an average low of 50.5°F (10.3°C).

Humidity

The average relative humidity in May in Emmaus is 79%.

Rainfall

In Emmaus, during May, the rain falls for 16.9 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Emmaus, during the entire year, the rain falls for 145.1 days and collects up to 27.24" (692mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Emmaus aggregates 0.16" (4mm) of snow. In Emmaus, during the entire year, snow falls for 20.4 days and aggregates up to 13.82" (351mm) of snow.

Daylight

In Emmaus, Pennsylvania, the average length of the day in May is 14h and 27min.
On the first day of May, sunrise is at 5:59 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:26 pm EDT.

Sunshine

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

UV index

In Emmaus, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 during May translates into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the usual temperature for Emmaus in May?

The high-temperature in Emmaus during May is 69.4°F (20.8°C) and the low-temperature is 50.5°F (10.3°C).

What is the average humidity in May in Emmaus?

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

How much does it rain in Emmaus in May?

In May, in Emmaus, Pennsylvania, the rain falls for 16.9 days. Throughout May, 2.76" (70mm) of precipitation is accumulated.

What is the last month it snows in Emmaus?

May is the last month it regularly snows in Emmaus, Pennsylvania. During 0.1 snowfall days, in May, Emmaus aggregates 0.16" (4mm) of snow.

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

In Emmaus, the average day length in May is 14h and 27min.

What time are sunrise and sunset in May in Emmaus?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:26 pm EDT.

How many hours of sunshine does Emmaus have in May?

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

What is the UV index intensity in May in Emmaus?

In Emmaus, Pennsylvania, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes 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
Emmaus, PA

Average temperature in May - Emmaus, PA
  • Average high temperature in May: 69.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in May
Emmaus, PA

Average pressure in May - Emmaus, PA
  • Average pressure in May: 30.01"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
Emmaus, PA

Average wind speed in May - Emmaus, PA
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in May
Emmaus, PA

Average humidity in May - Emmaus, PA
  • Average humidity in May: 79%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).

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Average rainfall in May
Emmaus, PA

Average rainfall in May - Emmaus, PA
  • Average rainfall in May: 2.76"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in May
Emmaus, PA

Average rainfall days in May - Emmaus, PA
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in May
Emmaus, PA

Average snowfall in May - Emmaus, PA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Emmaus, PA

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

The month with the highest number of snowfall days is February (6.6 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
Emmaus, PA

Average daylight in May / Average sunshine in May - Emmaus, PA
  • Average daylight in May: 14h and 3min

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 18min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in May
Emmaus, PA

Average sunshine days in May - Emmaus, PA
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in May
Emmaus, PA

Average UV index in May - Emmaus, PA
  • Average UV index in May: 5

The months with the highest UV index are 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
Emmaus, PA

Average cloud cover in May - Emmaus, PA
  • Average cloud cover in May: 49

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in May
Emmaus, PA

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

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

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Emmaus, Pennsylvania, USA

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