September weather forecast
New Germantown, PA

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Weather in September

September, the first month of the autumn in New Germantown, is still a warm month, with an average temperature varying between 55.4°F (13°C) and 74.3°F (23.5°C).

Temperature

As August transitions into September, New Germantown sees a gentle drop in the average high-temperature, transitioning from 81.3°F (27.4°C) to a still moderately hot 74.3°F (23.5°C). Throughout September, New Germantown's nights cool down to an average of 55.4°F (13°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13 days and typically collects 1.97" (50mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In New Germantown, the average length of the day in September is 12h and 27min.
On the first day of September in New Germantown, sunrise is at 6:38 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:53 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In New Germantown, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In September, the UV index of 4 transforms into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

What is the average September temperature?

September temperatures vary between a high-temperature of 74.3°F (23.5°C) and a low-temperature of 55.4°F (13°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is estimated at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

What is the driest month in New Germantown?

The month with the least rainfall is September, when the rain falls for 13 days and typically collects 1.97" (50mm) of precipitation.

How many days does it rain in September?

In New Germantown, in September, during 13 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does New Germantown have in September?

In New Germantown, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:38 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:53 pm EDT.

How many hours of sunshine does New Germantown have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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 Germantown, PA

Average temperature in September - New Germantown, PA
  • Average high temperature in September: 74.3°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 (34.7°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in September
New Germantown, PA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
New Germantown, PA

Average wind speed in September - New Germantown, PA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in September
New Germantown, PA

Average humidity in September - New Germantown, PA
  • Average humidity in September: 79%

The months with the highest relative humidity are February, May and October (80%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall in September
New Germantown, PA

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

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in September
New Germantown, PA

Average rainfall days in September - New Germantown, PA
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in September
New Germantown, PA

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

The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
New Germantown, PA

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

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - New Germantown, PA
  • Average daylight in September: 12h 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 September: 8h and 4min

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).

Average sunshine days in September
New Germantown, PA

Average sunshine days in September - New Germantown, PA
  • Average sunshine days in September: 15 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11 days).

Average UV index in September
New Germantown, PA

Average UV index in September - New Germantown, PA
  • Average UV index in September: 4

The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
New Germantown, PA

Average cloud cover in September - New Germantown, PA
  • Average cloud cover in September: 38

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
New Germantown, PA

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

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

New Germantown, Pennsylvania, USA

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