September weather forecast
Emigsville, PA

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Weather in September

September, the first month of the autumn in Emigsville, is still a warm month, with an average temperature fluctuating between 74.7°F (23.7°C) and 56.3°F (13.5°C).

Temperature

The onset of September is marked by a minor decrease in temperature, transitioning from a moderately hot 81°F (27.2°C) in August to a still warm 74.7°F (23.7°C). In September, Emigsville experiences a temperature dip to an average of 56.3°F (13.5°C) at night.

Humidity

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

Rainfall

In September, the rain falls for 10.5 days. Throughout September, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 134.1 rainfall days, and 17.83" (453mm) of precipitation is accumulated.

Snowfall

In Emigsville, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be vigilant - Preventing sunburn is recommended. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

In Emigsville, in September, the average high-temperature is 74.7°F (23.7°C), and the average low-temperature is 56.3°F (13.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

How much does it rain in September?

In Emigsville, in September, it is raining for 10.5 days, with typically 1.22" (31mm) of accumulated precipitation.

When it does not snow?

In Emigsville, snow does not fall in May through September.

Does it snow in September?

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

How many hours of daylight does Emigsville have in September?

In September, the average day length is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

How many hours of sunshine does Emigsville have in September?

In September, the average sunshine duration is 8.9h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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 September
Emigsville, PA

Average temperature in September - Emigsville, PA
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in September
Emigsville, PA

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Emigsville, PA

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

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Emigsville, PA

Average humidity in September - Emigsville, 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 March and April (76%).

Average rainfall in September
Emigsville, PA

Average rainfall in September - Emigsville, PA
  • Average rainfall in September: 1.22"

The wettest months (with the highest rainfall) are July and August (2.01").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in September
Emigsville, PA

Average rainfall days in September - Emigsville, PA
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6 days).

Average snowfall in September
Emigsville, PA

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

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Emigsville, PA

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

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Emigsville, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Emigsville, PA

Average sunshine days in September - Emigsville, PA
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in September
Emigsville, PA

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

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).

Average cloud cover in September
Emigsville, PA

Average cloud cover in September - Emigsville, PA
  • Average cloud cover in September: 38

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Emigsville, PA

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

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

Emigsville, Pennsylvania, USA

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