Gettysburg
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast
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September weather forecast and Climate
Gettysburg, PA

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  • The average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (39°F).

  • The average low temperature in September: 53°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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  • The average rainfall in September: 4.2"

Wettest months (with the highest rainfall) are May and June (4.3").
The driest month (with the lowest rainfall) is February (3").

  • The average rainfall days in September: 9 days

The month with the highest number of rainy days is May (12 days).
Months with the lowest number of rainy days are September and October (9 days).

  • The average daylight in September: 12h

Months with the longest days are June and July (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9h).

  • The average sunshine in September: 7h

Months with most sunshine are June, July and August (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 4h).

  • The average UV index in September: 7

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).

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