September weather forecast
Marvania Heights, MD

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Weather in September

The first month of the autumn, September, is still a warm month in Marvania Heights, Maryland, with an average temperature ranging between min 54.5°F (12.5°C) and max 75.6°F (24.2°C).

Temperature

With the arrival of September, Marvania Heights notices a mild change in the average high-temperature, sliding from August's 82.9°F (28.3°C) to a still warm 75.6°F (24.2°C). Marvania Heights experiences an average low-temperature reading of 54.5°F (12.5°C) throughout September.

Humidity

The average relative humidity in September in Marvania Heights is 78%.

Rainfall

In Marvania Heights, during September, the rain falls for 13 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Marvania Heights, during the entire year, the rain falls for 158.9 days and collects up to 26.1" (663mm) of precipitation.

Snowfall

In Marvania Heights, Maryland, snow does not fall in May through October.

Daylight

In September, the average length of the day in Marvania Heights is 12h and 26min.
On the first day of September, sunrise is at 6:41 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:56 pm EDT.

Sunshine

The average sunshine in September in Marvania Heights is 8.8h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

What is the average September temperature in Marvania Heights?

In Marvania Heights, in September, the average high-temperature is 75.6°F (24.2°C), and the average low-temperature is 54.5°F (12.5°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 calculated to be 89.6°F (32°C).

What is the average humidity in September in Marvania Heights?

In September, the average relative humidity in Marvania Heights is 78%.

How much does it rain in Marvania Heights in September?

In Marvania Heights, in September, during 13 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow in Marvania Heights?

In Marvania Heights, snow does not fall in May through October.

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

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

What time are sunrise and sunset in September in Marvania Heights?

In September, on the first day of the month, sunrise is at 6:41 am and sunset at 7:43 pm. On the last day of the month, in Marvania Heights, sunrise is at 7:08 am and sunset at 6:56 pm EDT.

How long on average sun shines in September in Marvania Heights?

The average sunshine duration in September in Marvania Heights is 8.8h.

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

In Marvania Heights, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Marvania Heights, MD

Average temperature in September - Marvania Heights, MD
  • Average high temperature in September: 75.6°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in September
Marvania Heights, MD

Average pressure in September - Marvania Heights, MD
  • 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).

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Average wind speed in September
Marvania Heights, MD

Average wind speed in September - Marvania Heights, MD
  • Average wind speed in September: 4.6mph

The windiest months (with the highest average wind speed) are January and February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

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Average humidity in September
Marvania Heights, MD

Average humidity in September - Marvania Heights, MD
  • Average humidity in September: 78%

The months with the highest relative humidity are February, October and December (79%).
The months with the lowest relative humidity are April and July (74%).

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Average rainfall in September
Marvania Heights, MD

Average rainfall in September - Marvania Heights, MD
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is November (1.69").

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Average rainfall days in September
Marvania Heights, MD

Average rainfall days in September - Marvania Heights, MD
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (9.3 days).

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Average snowfall in September
Marvania Heights, MD

Average snowfall in September - Marvania Heights, MD
  • Average snowfall in September: 0"

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

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Average snowfall days in September
Marvania Heights, MD

Average snowfall days in September - Marvania Heights, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Marvania Heights, MD

Average daylight in September / Average sunshine in September - Marvania 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 24min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days in September
Marvania Heights, MD

Average sunshine days in September - Marvania Heights, MD
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in September
Marvania Heights, MD

Average UV index in September - Marvania Heights, MD
  • Average UV index in September: 4

The months with the highest UV index are May, June and July (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
Marvania Heights, MD

Average cloud cover in September - Marvania Heights, MD
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in September
Marvania Heights, MD

Average visibility in September - Marvania Heights, MD
  • Average visibility in September: 5mi

The months with the highest visibility are February, March, April, June, July and November (6mi).
The months with the lowest visibility are January, May, August, September, October and December (5mi).

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Marvania Heights, Maryland, USA

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