September weather forecast
Primrose Acres, MD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Primrose Acres, Maryland, with temperature in the range of an average high of 77°F (25°C) and an average low of 64.6°F (18.1°C).

Temperature

With the onset of September, Primrose Acres experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 83.3°F (28.5°C) in August to a still moderately hot 77°F (25°C). In September, the recorded average low-temperature is a comfortable 64.6°F (18.1°C).

Humidity

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

Rainfall

In Primrose Acres, during September, the rain falls for 10.5 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Primrose Acres, during the entire year, the rain falls for 120.4 days and collects up to 10.47" (266mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Primrose Acres, 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 Primrose Acres, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Primrose Acres in September?

The average high-temperature, in September, in Primrose Acres, is 77°F (25°C), while the average low-temperature is 64.6°F (18.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How much does it rain in September?

In Primrose Acres, in September, during 10.5 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall in Primrose Acres.

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

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

When are sunrise and sunset in September?

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 7:01 am and sunset at 6:49 pm EDT.

How many hours of sunshine does Primrose Acres have in September?

In September, the average sunshine duration is 9.2h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Primrose Acres, MD

Average temperature in September - Primrose Acres, MD
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in September
Primrose Acres, MD

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Primrose Acres, MD

Average wind speed in September - Primrose Acres, MD
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in September
Primrose Acres, MD

Average humidity in September - Primrose 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%).

Average rainfall in September
Primrose Acres, MD

Average rainfall in September - Primrose Acres, MD
  • Average rainfall in September: 0.63"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in September
Primrose Acres, MD

Average rainfall days in September - Primrose Acres, MD
  • Average rainfall days in September: 10.5 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

Average snowfall in September
Primrose Acres, MD

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

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Primrose Acres, MD

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

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Primrose Acres, MD

Average daylight in September / Average sunshine in September - Primrose 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Primrose Acres, MD

Average sunshine days in September - Primrose Acres, MD
  • Average sunshine days in September: 17.4 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

Average UV index in September
Primrose Acres, MD

Average UV index in September - Primrose 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, February and December (UV index 2).

Average cloud cover in September
Primrose Acres, MD

Average cloud cover in September - Primrose Acres, MD
  • Average cloud cover in September: 33

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).

Average visibility in September
Primrose Acres, MD

Average visibility in September - Primrose 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).

Primrose Acres, Maryland, USA

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