September weather forecast
Mount Augustine, MD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Mount Augustine, Maryland, with an average temperature fluctuating between 77.2°F (25.1°C) and 62.2°F (16.8°C).

Temperature

September signals a slight drop in average high-temperature, sliding from August's warm 83.8°F (28.8°C) to a still moderately hot 77.2°F (25.1°C). In the month of September, the nighttime temperature in Mount Augustine dips to a steady average of 62.2°F (16.8°C).

Humidity

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

Rainfall

In Mount Augustine, in September, during 13.1 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 156.3 rainfall days, and 29.61" (752mm) of precipitation is accumulated.

Snowfall

In Mount Augustine, snow does not fall in April through October.

Daylight

In September, the average length of the day in Mount Augustine is 12h and 26min.
On the first day of September in Mount Augustine, Maryland, sunrise is at 6:36 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.

Sunshine

In Mount Augustine, Maryland, the average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index in Mount Augustine is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the usual temperature for Mount Augustine in September?

In September, in Mount Augustine, the average high-temperature is 77.2°F (25.1°C), and the average low-temperature is 62.2°F (16.8°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 91.4°F (33°C).

What is the average humidity in September in Mount Augustine?

In September, the average relative humidity in Mount Augustine, Maryland, is 75%.

How many days does it rain in September in Mount Augustine?

In Mount Augustine, 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 Mount Augustine?

April through October are months without snowfall in Mount Augustine.

What is the average length of the day in September in Mount Augustine?

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

When are sunrise and sunset in September in Mount Augustine?

On the first day of September in Mount Augustine, Maryland, sunrise is at 6:36 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 long on average sun shines in September in Mount Augustine?

In September, the average sunshine duration is 9.3h.

What is the UV index intensity in September in Mount Augustine?

In September, the average daily maximum UV index in Mount Augustine is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Mount Augustine, MD

Average temperature in September - Mount Augustine, 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
Mount Augustine, MD

Average pressure in September - Mount Augustine, 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
Mount Augustine, MD

Average wind speed in September - Mount Augustine, 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
Mount Augustine, MD

Average humidity in September - Mount Augustine, 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
Mount Augustine, MD

Average rainfall in September - Mount Augustine, 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
Mount Augustine, MD

Average rainfall days in September - Mount Augustine, 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
Mount Augustine, MD

Average snowfall in September - Mount Augustine, 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
Mount Augustine, MD

Average snowfall days in September - Mount Augustine, 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
Mount Augustine, MD

Average daylight in September / Average sunshine in September - Mount Augustine, 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
Mount Augustine, MD

Average sunshine days in September - Mount Augustine, 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
Mount Augustine, MD

Average UV index in September - Mount Augustine, 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
Mount Augustine, MD

Average cloud cover in September - Mount Augustine, 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
Mount Augustine, MD

Average visibility in September - Mount Augustine, 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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Mount Augustine, Maryland, USA

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