September weather forecast
Wernersville, PA

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Weather in September

The first month of the autumn, September, is still a warm month in Wernersville, Pennsylvania, with temperature in the range of an average high of 74.5°F (23.6°C) and an average low of 55.6°F (13.1°C).

Temperature

Wernersville's September weather features a light decline in high-temperatures, reducing from 80.6°F (27°C) in August to a still warm 74.5°F (23.6°C). Wernersville reports an average low-temperature of 55.6°F (13.1°C) during the nights of September.

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.85" (47mm) of precipitation.

Snowfall

In Wernersville, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

Sunshine

In Wernersville, the average sunshine in September is 8.8h.

UV index

In Wernersville, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the UV index of 4 transforms into the following advice:
Undertake precautions - It is suggested to shield oneself from sunburn. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

What is the average September temperature?

In Wernersville, in September, the average high-temperature is 74.5°F (23.6°C), and the average low-temperature is 55.6°F (13.1°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 79%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.85" (47mm) of precipitation.

How many days does it rain in September?

In Wernersville, in September, it is raining for 11.5 days, with typically 1.85" (47mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in Wernersville in September?

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

What is the average length of the day in September in Wernersville?

In Wernersville, 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 6:32 am and sunset at 7:35 pm. On the last day of the month, in Wernersville, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

How many hours of sunshine does Wernersville have in September?

In Wernersville, the average sunshine duration in September is 8.8h.

What is the UV index reading in September?

In Wernersville, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Wernersville, PA

Average temperature in September - Wernersville, PA
  • Average high temperature in September: 74.5°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in September: 55.6°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

Average pressure in September
Wernersville, PA

Average pressure in September - Wernersville, 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
Wernersville, PA

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

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Wernersville, PA

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

The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in September
Wernersville, PA

Average rainfall in September - Wernersville, PA
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is August (2.95").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Wernersville, PA

Average rainfall days in September - Wernersville, PA
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in September
Wernersville, PA

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

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

Average snowfall days in September
Wernersville, PA

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

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Wernersville, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Wernersville, PA

Average sunshine days in September - Wernersville, PA
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in September
Wernersville, PA

Average UV index in September - Wernersville, 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
Wernersville, PA

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

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Wernersville, PA

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

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

Wernersville, Pennsylvania, USA

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