May weather forecast
Fullerton, PA

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Weather in May

May, the last month of the spring in Fullerton, is a pleasant month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 69.4°F (20.8°C).

Temperature

The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a mild 58.3°F (14.6°C) in April to an agreeable 69.4°F (20.8°C). Fullerton records an average temperature drop to a cool 50.5°F (10.3°C) in May.

Humidity

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

Rainfall

In Fullerton, in May, it is raining for 16.9 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 145.1 rainfall days, and 27.24" (692mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Fullerton are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Fullerton aggregates 0.16" (4mm) of snow. Throughout the year, in Fullerton, there are 20.4 snowfall days, and 13.82" (351mm) of snow is accumulated.

Daylight

The average length of the day in May in Fullerton is 14h and 28min.
On the first day of May in Fullerton, 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

The average sunshine in May in Fullerton is 8.2h.

UV index

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against sun damage is advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What is the usual temperature for Fullerton in May?

The average high-temperature and low-temperature in Fullerton during May are 69.4°F (20.8°C) and 50.5°F (10.3°C) respectively.

What is the average humidity in May in Fullerton?

The average relative humidity in May is 79%.

How many days does it rain in May in Fullerton?

In Fullerton, Pennsylvania, during May, the rain falls for 16.9 days and regularly aggregates up to 2.76" (70mm) of precipitation.

What is the last month it snows in Fullerton?

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

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

In Fullerton, Pennsylvania, the average day length in May is 14h and 28min.

When are sunrise and sunset in May in Fullerton?

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, in Fullerton, sunrise is at 5:33 am and sunset at 8:26 pm EDT.

How many hours of sunshine does Fullerton have in May?

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

What is the UV index reading in May in Fullerton?

The average daily maximum UV index in May in Fullerton is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Fullerton, PA

Average temperature in May - Fullerton, 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
Fullerton, PA

Average pressure in May - Fullerton, 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
Fullerton, PA

Average wind speed in May - Fullerton, 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
Fullerton, PA

Average humidity in May - Fullerton, 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
Fullerton, PA

Average rainfall in May - Fullerton, 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
Fullerton, PA

Average rainfall days in May - Fullerton, 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
Fullerton, PA

Average snowfall in May - Fullerton, 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
Fullerton, PA

Average snowfall days in May - Fullerton, 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
Fullerton, PA

Average daylight in May / Average sunshine in May - Fullerton, 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
Fullerton, PA

Average sunshine days in May - Fullerton, 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
Fullerton, PA

Average UV index in May - Fullerton, 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
Fullerton, PA

Average cloud cover in May - Fullerton, 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
Fullerton, PA

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

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