May weather forecast
Narberth, PA

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Weather in May

The last month of the spring, May, is a pleasant month in Narberth, Pennsylvania, with an average temperature ranging between min 54.3°F (12.4°C) and max 71.8°F (22.1°C).

Temperature

May brings a temperature increase, with average high-temperatures moving from April's refreshing 61.2°F (16.2°C) to an agreeable 71.8°F (22.1°C). May nights in Narberth experience a consistent temperature drop to a cool 54.3°F (12.4°C).

Humidity

In Narberth, Pennsylvania, the average relative humidity in May is 75%.

Rainfall

In Narberth, in May, during 12.6 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 111.8 rainfall days, and 9.69" (246mm) of precipitation is accumulated.

Snowfall

In Narberth, snow does not fall in April through October.

Daylight

The average length of the day in May is 14h and 25min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:23 pm EDT.

Sunshine

In May, the average sunshine is 8.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 6 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What is the usual temperature for Narberth in May?

The high-temperature, in May, in Narberth, is 71.8°F (22.1°C), while the low-temperature averages to 54.3°F (12.4°C).

What is the average humidity in May?

In May, the average relative humidity is 75%.

How much does it rain in May?

In Narberth, in May, during 12.6 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow in Narberth?

In Narberth, snow does not fall in April through October.

What is the average length of the day in May?

In May, the average day length is 14h and 25min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:23 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.4h.

When is the highest UV index?

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

What is the UV index reading in May?

The average daily maximum UV index in May in Narberth is 6. A UV Index reading of 6 to 7 represents a high health risk from 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
Narberth, PA

Average temperature in May - Narberth, PA
  • Average high temperature in May: 71.8°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in May: 54.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure in May
Narberth, PA

Average pressure in May - Narberth, 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).

Average wind speed in May
Narberth, PA

Average wind speed in May - Narberth, PA
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in May
Narberth, PA

Average humidity in May - Narberth, PA
  • Average humidity in May: 75%

The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (71%).

Average rainfall in May
Narberth, PA

Average rainfall in May - Narberth, PA
  • Average rainfall in May: 0.91"

The wettest months (with the highest rainfall) are July and August (1.14").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in May
Narberth, PA

Average rainfall days in May - Narberth, PA
  • Average rainfall days in May: 12.6 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in May
Narberth, PA

Average snowfall in May - Narberth, PA
  • Average snowfall in May: 0"

The months with the highest snowfall are February and March (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Narberth, PA

Average snowfall days in May - Narberth, PA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Narberth, PA

Average daylight in May / Average sunshine in May - Narberth, 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 36min).

Average sunshine days in May
Narberth, PA

Average sunshine days in May - Narberth, PA
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (14.9 days).

Average UV index in May
Narberth, PA

Average UV index in May - Narberth, 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).

Average cloud cover in May
Narberth, PA

Average cloud cover in May - Narberth, PA
  • Average cloud cover in May: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in May
Narberth, PA

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

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

Narberth, Pennsylvania, USA

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