September weather forecast
Osterburg, PA

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Weather in September

September, the first month of the autumn in Osterburg, is also an agreeable month, with an average temperature fluctuating between 72.1°F (22.3°C) and 52.5°F (11.4°C).

Temperature

The arrival of September suggests a slight decrease in the average high-temperature, moving from a moderately hot 78.8°F (26°C) in August to an agreeable 72.1°F (22.3°C). Osterburg usually reports an average low-temperature of 52.5°F (11.4°C) during the month of September.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In September, in Osterburg, the rain falls for 15.3 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 162.4 rainfall days, and 30" (762mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day in Osterburg is 12h and 26min.
On the first day of September, sunrise is at 6:42 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:57 pm EDT.

Sunshine

In Osterburg, the average sunshine in September is 8.2h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 3 in September translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What is the usual temperature for Osterburg in September?

The average high-temperature, in September, in Osterburg, is 72.1°F (22.3°C), while the average low-temperature is 52.5°F (11.4°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 84.2°F (29°C).

What is the average humidity in September?

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

How many days does it rain in September?

In Osterburg, in September, it is raining for 15.3 days, with typically 2.32" (59mm) of accumulated precipitation.

When it does not snow?

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

Does it snow in September?

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

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

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

What time are sunrise and sunset in September?

On the first day of September in Osterburg, sunrise is at 6:42 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:57 pm EDT.

How many hours of sunshine does Osterburg have in September?

In Osterburg, the average sunshine duration in September is 8.2h.

How high is the UV index in September?

In September, the average daily maximum UV index is 3. A UV Index 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
Osterburg, PA

Average temperature in September - Osterburg, PA
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 52.5°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in September
Osterburg, PA

Average pressure in September - Osterburg, 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
Osterburg, PA

Average wind speed in September - Osterburg, PA
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in September
Osterburg, PA

Average humidity in September - Osterburg, PA
  • Average humidity in September: 80%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is July (77%).

Average rainfall in September
Osterburg, PA

Average rainfall in September - Osterburg, PA
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is November (1.65").

Average rainfall days in September
Osterburg, PA

Average rainfall days in September - Osterburg, PA
  • Average rainfall days in September: 15.3 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September
Osterburg, PA

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

The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Osterburg, PA

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

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Osterburg, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in September
Osterburg, PA

Average sunshine days in September - Osterburg, PA
  • Average sunshine days in September: 12.7 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (9.8 days).

Average UV index in September
Osterburg, PA

Average UV index in September - Osterburg, PA
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September
Osterburg, PA

Average cloud cover in September - Osterburg, PA
  • Average cloud cover in September: 42

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in September
Osterburg, PA

Average visibility in September - Osterburg, 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).

Osterburg, Pennsylvania, USA

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