September weather forecast
Gapgalleon, MD

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Weather in September

The first month of the autumn, September, is still a warm month in Gapgalleon, Maryland, with an average temperature fluctuating between 62.2°F (16.8°C) and 77.2°F (25.1°C).

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from 83.8°F (28.8°C) in August to a still moderately hot 77.2°F (25.1°C). During September nights, Gapgalleon records an average temperature of 62.2°F (16.8°C).

Humidity

In September, the average relative humidity in Gapgalleon is 75%.

Rainfall

In September, the rain falls for 13.1 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. In Gapgalleon, during the entire year, the rain falls for 156.3 days and collects up to 29.61" (752mm) of precipitation.

Snowfall

In Gapgalleon, snow does not fall in April through October.

Daylight

In Gapgalleon, 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 7:36 pm. On the last day of September, in Gapgalleon, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index in Gapgalleon is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What are the temperatures in Gapgalleon in September?

An average high-temperature, in September, in Gapgalleon, is 77.2°F (25.1°C) and the average low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is evaluated at 91.4°F (33°C).

What is the average humidity in September in Gapgalleon?

The average relative humidity in September is 75%.

How much does it rain in Gapgalleon in September?

In Gapgalleon, during September, the rain falls for 13.1 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow in Gapgalleon?

April through October are months without snowfall in Gapgalleon, Maryland.

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

The average day length in September is 12h and 26min.

When are sunrise and sunset in September in Gapgalleon?

On the first day of September, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

How long on average sun shines in September in Gapgalleon?

In September, the average sunshine duration in Gapgalleon is 9.3h.

How high is the UV index in September in Gapgalleon?

The average daily maximum UV index in September in Gapgalleon is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Gapgalleon, MD

Average temperature in September - Gapgalleon, MD
  • Average high temperature in September: 77.2°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 62.2°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in September
Gapgalleon, MD

Average pressure in September - Gapgalleon, MD
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Gapgalleon, MD

Average wind speed in September - Gapgalleon, MD
  • Average wind speed in September: 6.5mph

The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in September
Gapgalleon, MD

Average humidity in September - Gapgalleon, MD
  • Average humidity in September: 75%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April and July (72%).

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Average rainfall in September
Gapgalleon, MD

Average rainfall in September - Gapgalleon, MD
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (1.77").

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Average rainfall days in September
Gapgalleon, MD

Average rainfall days in September - Gapgalleon, MD
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in September
Gapgalleon, MD

Average snowfall in September - Gapgalleon, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Gapgalleon, MD

Average snowfall days in September - Gapgalleon, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Gapgalleon, MD

Average daylight in September / Average sunshine in September - Gapgalleon, MD
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days in September
Gapgalleon, MD

Average sunshine days in September - Gapgalleon, MD
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in September
Gapgalleon, MD

Average UV index in September - Gapgalleon, MD
  • Average UV index in September: 5

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).

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Average cloud cover in September
Gapgalleon, MD

Average cloud cover in September - Gapgalleon, MD
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in September
Gapgalleon, MD

Average visibility in September - Gapgalleon, MD
  • Average visibility in September: 6mi

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

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Gapgalleon, Maryland, USA

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