September weather forecast
New Bethlehem, PA

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Weather in September

The first month of the autumn, September, is still a pleasant month in New Bethlehem, Pennsylvania, with an average temperature ranging between max 72.5°F (22.5°C) and min 52.5°F (11.4°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from a moderately hot 79°F (26.1°C) in August to a pleasant 72.5°F (22.5°C). Throughout the month of September, the nighttime temperature dips to an average of 52.5°F (11.4°C).

Humidity

In New Bethlehem, the average relative humidity in September is 80%.

Rainfall

In New Bethlehem, in September, during 13.9 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, in New Bethlehem, there are 169.8 rainfall days, and 27.36" (695mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:00 pm EDT.

Sunshine

In New Bethlehem, the average sunshine in September is 8.2h.

UV index

In September, the average daily maximum UV index in New Bethlehem is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, a daily UV index of 3 turns into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What are the temperatures in New Bethlehem in September?

In September, the average high-temperature and low-temperature in New Bethlehem are 72.5°F (22.5°C) and 52.5°F (11.4°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is evaluated at 86°F (30°C).

What is the average humidity in September in New Bethlehem?

In New Bethlehem, the average relative humidity in September is 80%.

How many days does it rain in September in New Bethlehem?

In September, in New Bethlehem, Pennsylvania, the rain falls for 13.9 days. Throughout September, 1.97" (50mm) of precipitation is accumulated.

When it does not snow in New Bethlehem?

In New Bethlehem, Pennsylvania, snow does not fall in June through September.

Does it snow in New Bethlehem in September?

In New Bethlehem, Pennsylvania, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in New Bethlehem?

In September, the average day length in New Bethlehem, Pennsylvania, is 12h and 28min.

What time are sunrise and sunset in September in New Bethlehem?

In September, on the first day of the month, sunrise is at 6:44 am and sunset at 7:49 pm. On the last day of the month, in New Bethlehem, sunrise is at 7:13 am and sunset at 7:00 pm EDT.

How long on average sun shines in September in New Bethlehem?

In September, the average sunshine duration is 8.2h.

What is the UV index intensity in September in New Bethlehem?

The average daily maximum UV index in September in New Bethlehem is 3. A UV Index estimate of 3 to 5 represents a moderate 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 September
New Bethlehem, PA

Average temperature in September - New Bethlehem, PA
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in September: 52.5°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in September
New Bethlehem, PA

Average pressure in September - New Bethlehem, PA
  • Average pressure in September: 30.06"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 September
New Bethlehem, PA

Average wind speed in September - New Bethlehem, PA
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
New Bethlehem, PA

Average humidity in September - New Bethlehem, PA
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is July (78%).

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Average rainfall in September
New Bethlehem, PA

Average rainfall in September - New Bethlehem, PA
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is August (1.69").

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Average rainfall days in September
New Bethlehem, PA

Average rainfall days in September - New Bethlehem, PA
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (7.5 days).

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Average snowfall in September
New Bethlehem, PA

Average snowfall in September - New Bethlehem, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
New Bethlehem, PA

Average snowfall days in September - New Bethlehem, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
New Bethlehem, PA

Average daylight in September / Average sunshine in September - New Bethlehem, PA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in September
New Bethlehem, PA

Average sunshine days in September - New Bethlehem, PA
  • Average sunshine days in September: 14 days

The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (5.7 days).

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Average UV index in September
New Bethlehem, PA

Average UV index in September - New Bethlehem, PA
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
New Bethlehem, PA

Average cloud cover in September - New Bethlehem, PA
  • Average cloud cover in September: 42

The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).

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Average visibility in September
New Bethlehem, PA

Average visibility in September - New Bethlehem, PA
  • Average visibility in September: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).

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New Bethlehem, Pennsylvania, USA

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