May weather forecast
East Norriton, PA

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Weather in May

May, the last month of the spring in East Norriton, is an agreeable month, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 71.4°F (21.9°C).

Temperature

May shows a rise in the average high-temperature, moving from April's enjoyable 60.8°F (16°C) to an agreeable 71.4°F (21.9°C). East Norriton, during May nights, observes an average temperature of 53.4°F (11.9°C).

Humidity

The average relative humidity in May in East Norriton is 76%.

Rainfall

In May, in East Norriton, the rain falls for 16 days. Throughout May, 1.77" (45mm) of precipitation is accumulated. Throughout the year, in East Norriton, Pennsylvania, there are 138.2 rainfall days, and 15.59" (396mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, May and December. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, there are 15.8 snowfall days, and 2.13" (54mm) of snow is accumulated.

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 8:24 pm EDT.

Sunshine

In May, the average sunshine in East Norriton is 8.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for East Norriton in May?

The average high-temperature and low-temperature in East Norriton during May are 71.4°F (21.9°C) and 53.4°F (11.9°C) respectively.

What is the average humidity in May in East Norriton?

In East Norriton, Pennsylvania, the average relative humidity in May is 76%.

How many days does it rain in May in East Norriton?

In East Norriton, Pennsylvania, in May, it is raining for 16 days, with typically 1.77" (45mm) of accumulated precipitation.

When does it start to snow in East Norriton?

May is the first month it typically snows in East Norriton, Pennsylvania. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow.

How many hours of daylight does East Norriton have in May?

In May, the average day length in East Norriton, Pennsylvania, is 14h and 25min.

When is the sunrise / sunset in May in East Norriton?

On the first day of May in East Norriton, 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 8:24 pm EDT.

How long on average sun shines in May in East Norriton?

In May, the average sunshine duration in East Norriton, Pennsylvania, is 8.5h.

What are the months with the highest UV index in East Norriton?

May through August, with an average maximum UV index of 6, are months with the highest UV index in East Norriton, Pennsylvania.

What is the UV index intensity in May in East Norriton?

In East Norriton, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's 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
East Norriton, PA

Average temperature in May - East Norriton, PA
  • Average high temperature in May: 71.4°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in May: 53.4°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in May
East Norriton, PA

Average pressure in May - East Norriton, 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
East Norriton, PA

Average wind speed in May - East Norriton, PA
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in May
East Norriton, PA

Average humidity in May - East Norriton, PA
  • Average humidity in May: 76%

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (72%).

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Average rainfall in May
East Norriton, PA

Average rainfall in May - East Norriton, PA
  • Average rainfall in May: 1.77"

The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in May
East Norriton, PA

Average rainfall days in May - East Norriton, PA
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (7.4 days).

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Average snowfall in May
East Norriton, PA

Average snowfall in May - East Norriton, PA
  • Average snowfall in May: 0.16"

The months with the highest snowfall are February and March (0.55").
The months with the least snowfall are April, June, July, August, September, October and November (0").

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Average snowfall days in May
East Norriton, PA

Average snowfall days in May - East Norriton, 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 April, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
East Norriton, PA

Average daylight in May / Average sunshine in May - East Norriton, 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 3min

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
East Norriton, PA

Average sunshine days in May - East Norriton, PA
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are May and June (12.8 days).

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Average UV index in May
East Norriton, PA

Average UV index in May - East Norriton, 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, March, November and December (UV index 2).

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Average cloud cover in May
East Norriton, PA

Average cloud cover in May - East Norriton, PA
  • Average cloud cover in May: 47

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in May
East Norriton, PA

Average visibility in May - East Norriton, 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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East Norriton, Pennsylvania, USA

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