September weather forecast
Sweetser Heights, MD

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Weather in September

September, the first month of the autumn in Sweetser Heights, is also a moderately hot month, with an average temperature ranging between min 62.2°F (16.8°C) and max 77.2°F (25.1°C).

Temperature

The arrival of September signals a subtle shift in temperature, down from a warm 83.8°F (28.8°C) in August to a still moderately hot 77.2°F (25.1°C). In the month of September, the average temperature in Sweetser Heights dips to a refreshing 62.2°F (16.8°C) during the night.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Sweetser Heights, during September, the rain falls for 13.1 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Sweetser Heights, Maryland, during the entire year, the rain falls for 156.3 days and collects up to 29.61" (752mm) of precipitation.

Snowfall

In Sweetser Heights, snow does not fall in April through October.

Daylight

In September, the average length of the day in Sweetser Heights is 12h and 26min.
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.

Sunshine

In September, the average sunshine in Sweetser Heights is 9.3h.

UV index

In Sweetser Heights, Maryland, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

What is the average September temperature in Sweetser Heights?

The high-temperature in Sweetser Heights during September is 77.2°F (25.1°C) and the low-temperature is 62.2°F (16.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 91.4°F (33°C).

What is the average humidity in September in Sweetser Heights?

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

How much does it rain in Sweetser Heights in September?

In Sweetser Heights, Maryland, in September, during 13.1 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow in Sweetser Heights?

April through October are months without snowfall in Sweetser Heights.

What is the average length of the day in September in Sweetser Heights?

In Sweetser Heights, Maryland, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Sweetser Heights?

On the first day of September in Sweetser Heights, Maryland, 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 Sweetser Heights?

In September, the average sunshine duration is 9.3h.

What is the UV index intensity in September in Sweetser Heights?

In September, the average daily maximum UV index in Sweetser Heights is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Sweetser Heights, MD

Average temperature in September - Sweetser Heights, 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
Sweetser Heights, MD

Average pressure in September - Sweetser Heights, 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
Sweetser Heights, MD

Average wind speed in September - Sweetser Heights, 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
Sweetser Heights, MD

Average humidity in September - Sweetser Heights, 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
Sweetser Heights, MD

Average rainfall in September - Sweetser Heights, 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
Sweetser Heights, MD

Average rainfall days in September - Sweetser Heights, 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
Sweetser Heights, MD

Average snowfall in September - Sweetser Heights, 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
Sweetser Heights, MD

Average snowfall days in September - Sweetser Heights, 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
Sweetser Heights, MD

Average daylight in September / Average sunshine in September - Sweetser Heights, 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
Sweetser Heights, MD

Average sunshine days in September - Sweetser Heights, 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
Sweetser Heights, MD

Average UV index in September - Sweetser Heights, 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
Sweetser Heights, MD

Average cloud cover in September - Sweetser Heights, 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
Sweetser Heights, MD

Average visibility in September - Sweetser Heights, 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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Sweetser Heights, Maryland, USA

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