September weather forecast
Bath, PA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Bath, Pennsylvania, with an average temperature fluctuating between 73.8°F (23.2°C) and 54.5°F (12.5°C).

Temperature

A modest decline in the average high-temperature is seen during September, decreasing from 80.2°F (26.8°C) in August to a still warm 73.8°F (23.2°C). During September, the average low-temperature is a cool 54.5°F (12.5°C).

Humidity

In Bath, the average relative humidity in September is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.2 days and accumulates 2.01" (51mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

In Bath, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 4 in September translates into this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

What is the usual temperature for Bath in September?

The high-temperature, in September, in Bath, is 73.8°F (23.2°C), while the low-temperature averages to 54.5°F (12.5°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in September?

In Bath, the average relative humidity in September is 79%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 2.01" (51mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 12.2 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Bath have in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm EDT.

How many hours of sunshine does Bath 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 value of 3 to 5 symbolizes a medium health risk from unsafe 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 September
Bath, PA

Average temperature in September - Bath, PA
  • Average high temperature in September: 73.8°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in September
Bath, PA

Average pressure in September - Bath, 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).

Average wind speed in September
Bath, PA

Average wind speed in September - Bath, PA
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Bath, PA

Average humidity in September - Bath, PA
  • Average humidity in September: 79%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).

Average rainfall in September
Bath, PA

Average rainfall in September - Bath, PA
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in September
Bath, PA

Average rainfall days in September - Bath, PA
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9.9 days).

Average snowfall in September
Bath, PA

Average snowfall in September - Bath, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Bath, PA

Average snowfall days in September - Bath, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Bath, PA

Average daylight in September / Average sunshine in September - Bath, PA
  • Average daylight in September: 12h 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 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 30min).

Average sunshine days in September
Bath, PA

Average sunshine days in September - Bath, PA
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in September
Bath, PA

Average UV index in September - Bath, PA
  • Average UV index in September: 4

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).

Average cloud cover in September
Bath, PA

Average cloud cover in September - Bath, PA
  • Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September
Bath, PA

Average visibility in September - Bath, PA
  • Average visibility in September: 5mi

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

Bath, Pennsylvania, USA

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