May weather forecast
Lewistown, NJ

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Weather in May

The last month of the spring, May, is an agreeable month in Lewistown, New Jersey, with temperature in the range of an average low of 53.8°F (12.1°C) and an average high of 70.3°F (21.3°C).

Temperature

Lewistown's transition into May is marked by a rise in the average high-temperature, advancing from a refreshing 60.8°F (16°C) in April to an agreeable 70.3°F (21.3°C). Lewistown sees an average low-temperature of 53.8°F (12.1°C) during May.

Humidity

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

Rainfall

In May, the rain falls for 17 days. Throughout May, 2.76" (70mm) of precipitation is accumulated. In Lewistown, New Jersey, during the entire year, the rain falls for 156.9 days and collects up to 32.99" (838mm) of precipitation.

Snowfall

Months with snowfall in Lewistown are January through May, October through December. May is the last month it regularly snows in Lewistown. During 0.1 snowfall days, in May, Lewistown aggregates 0.2" (5mm) of snow. In Lewistown, during the entire year, snow falls for 19.6 days and aggregates up to 10.63" (270mm) of snow.

Daylight

In May, the average length of the day in Lewistown is 14h and 25min.
On the first day of May, sunrise is at 5:57 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:21 pm EDT.

Sunshine

The average sunshine in May is 8.4h.

UV index

The months with the highest UV index in Lewistown are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: During May, 6 as the daily maximum UV index converts into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the 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 Lewistown in May?

Lewistown in May has an average high-temperature of 70.3°F (21.3°C) and an average low-temperature of 53.8°F (12.1°C).

What is the average humidity in May in Lewistown?

In Lewistown, New Jersey, the average relative humidity in May is 78%.

How many days does it rain in May in Lewistown?

In Lewistown, New Jersey, during May, the rain falls for 17 days and regularly aggregates up to 2.76" (70mm) of precipitation.

What is the last month it snows in Lewistown?

May is the last month it regularly snows in Lewistown, New Jersey. During 0.1 snowfall days, in May, Lewistown aggregates 0.2" (5mm) of snow.

How many hours of daylight does Lewistown have in May?

The average day length in May is 14h and 25min.

What time are sunrise and sunset in May in Lewistown?

On the first day of May, sunrise is at 5:57 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:21 pm EDT.

How many hours of sunshine does Lewistown have in May?

In Lewistown, New Jersey, the average sunshine duration in May is 8.4h.

What are the months with the highest UV index in Lewistown?

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

What is the UV index intensity in May in Lewistown?

In May, the average daily maximum UV index in Lewistown is 6. A UV Index estimate 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
Lewistown, NJ

Average temperature in May - Lewistown, NJ
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in May: 53.8°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in May
Lewistown, NJ

Average pressure in May - Lewistown, NJ
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Lewistown, NJ

Average wind speed in May - Lewistown, NJ
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in May
Lewistown, NJ

Average humidity in May - Lewistown, NJ
  • Average humidity in May: 78%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in May
Lewistown, NJ

Average rainfall in May - Lewistown, NJ
  • Average rainfall in May: 2.76"

The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in May
Lewistown, NJ

Average rainfall days in May - Lewistown, NJ
  • Average rainfall days in May: 17 days

The months with the highest number of rainy days are May and July (17 days).
The month with the least rainy days is November (9 days).

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Average snowfall in May
Lewistown, NJ

Average snowfall in May - Lewistown, NJ
  • Average snowfall in May: 0.2"

The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Lewistown, NJ

Average snowfall days in May - Lewistown, NJ
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (5.9 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
Lewistown, NJ

Average daylight in May / Average sunshine in May - Lewistown, NJ
  • 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in May
Lewistown, NJ

Average sunshine days in May - Lewistown, NJ
  • Average sunshine days in May: 12 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in May
Lewistown, NJ

Average UV index in May - Lewistown, NJ
  • 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
Lewistown, NJ

Average cloud cover in May - Lewistown, NJ
  • Average cloud cover in May: 47

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in May
Lewistown, NJ

Average visibility in May - Lewistown, NJ
  • Average visibility in May: 6mi

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

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Lewistown, New Jersey, USA

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