September weather forecast
Arundel Acres, MD

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Weather in September

September, the first month of the autumn in Arundel Acres, is also a moderately hot month, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 63.3°F (17.4°C).

Temperature

With the onset of September, Arundel Acres's climate undergoes a slight change as the average high-temperature moves from a moderately hot 83.7°F (28.7°C) in August to a still warm 77.4°F (25.2°C). Arundel Acres's temperature in September lowers to a consistent average of 63.3°F (17.4°C) during the nights.

Humidity

In Arundel Acres, Maryland, the average relative humidity in September is 75%.

Rainfall

The month with the least rainfall in Arundel Acres is September, when the rain falls for 11.8 days and typically collects 1.89" (48mm) of precipitation.

Snowfall

May through October are months without snowfall in Arundel Acres.

Daylight

In Arundel Acres, the average length of the day in September is 12h and 26min.
On the first day of September in Arundel Acres, sunrise is at 6:36 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 is 9.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, an average UV index of 5 transforms into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What is the usual temperature for Arundel Acres in September?

In September, the average high-temperature and low-temperature in Arundel Acres are 77.4°F (25.2°C) and 63.3°F (17.4°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 91.4°F (33°C).

What is the average humidity in September in Arundel Acres?

The average relative humidity in September in Arundel Acres is 75%.

What is the driest month in Arundel Acres?

September is the month with the least rainfall in Arundel Acres, Maryland. Rain falls for 11.8 days and accumulates 1.89" (48mm) of precipitation.

How many days does it rain in September in Arundel Acres?

In Arundel Acres, in September, during 11.8 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow in Arundel Acres?

In Arundel Acres, snow does not fall in May through October.

How many hours of daylight does Arundel Acres have in September?

In Arundel Acres, the average day length in September is 12h and 26min.

What time are sunrise and sunset in September in Arundel Acres?

On the first day of September in Arundel Acres, Maryland, sunrise is at 6:36 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 many hours of sunshine does Arundel Acres have in September?

In September, the average sunshine duration is 9.2h.

What is the UV index reading in September in Arundel Acres?

The average daily maximum UV index in September in Arundel Acres, Maryland, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Arundel Acres, MD

Average temperature in September - Arundel Acres, MD
  • Average high temperature in September: 77.4°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 (39.6°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in September
Arundel Acres, MD

Average pressure in September - Arundel Acres, 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
Arundel Acres, MD

Average wind speed in September - Arundel Acres, MD
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in September
Arundel Acres, MD

Average humidity in September - Arundel Acres, MD
  • Average humidity in September: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

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Average rainfall in September
Arundel Acres, MD

Average rainfall in September - Arundel Acres, MD
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in September
Arundel Acres, MD

Average rainfall days in September - Arundel Acres, MD
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall in September
Arundel Acres, MD

Average snowfall in September - Arundel Acres, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Arundel Acres, MD

Average snowfall days in September - Arundel Acres, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.4 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
Arundel Acres, MD

Average daylight in September / Average sunshine in September - Arundel Acres, 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 1min

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
Arundel Acres, MD

Average sunshine days in September - Arundel Acres, MD
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in September
Arundel Acres, MD

Average UV index in September - Arundel Acres, 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, November and December (UV index 2).

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Average cloud cover in September
Arundel Acres, MD

Average cloud cover in September - Arundel Acres, MD
  • Average cloud cover in September: 34

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in September
Arundel Acres, MD

Average visibility in September - Arundel Acres, 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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Arundel Acres, Maryland, USA

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