September weather forecast
Glen Burnie, MD

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Weather in September

September marks a pronounced transition from summer heat, with Glen Burnie's weather cooling down to an average high temperature of 77.2°F (25.1°C). It marks the onset of the city's fall season, with temperatures falling and daylight hours decreasing to 12.4 hours. A gradual decline in key weather elements begins, indicating seasonal change. The last vestiges of summer dissipate as cooler trends set in. In essence, September's weather stands as a distinct indication of summer's retreat and the gentle arrival of autumn.

Temperature

A subtle shift in Glen Burnie's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 83.8°F (28.8°C) to a still warm 77.2°F (25.1°C). Throughout the month of September, Glen Burnie witnesses an average temperature of 62.4°F (16.9°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

In Glen Burnie, during September, the rain falls for 13.1 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Glen Burnie, during the entire year, the rain falls for 157.2 days and collects up to 30.47" (774mm) of precipitation.

Snowfall

In Glen Burnie, snow does not fall in April through October.

Daylight

In September, the average length of the day 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

The average sunshine in September is 9.3h.

UV index

In Glen Burnie, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 5 in September translates into this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In Glen Burnie, in September, the average high-temperature is 77.2°F (25.1°C), and the average low-temperature is 62.4°F (16.9°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 91.4°F (33°C).

What is the average humidity in September?

In Glen Burnie, the average relative humidity in September is 75%.

How much does it rain in September?

In Glen Burnie, during September, the rain falls for 13.1 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

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 7:02 am and sunset at 6:50 pm EDT.

How many hours of sunshine does Glen Burnie have in September?

The average sunshine duration in September is 9.3h.

What is the UV index intensity in September?

In Glen Burnie, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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
Glen Burnie, MD

Average temperature in September - Glen Burnie, MD
  • Average high temperature in September: 77.2°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 (38.8°F).

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in September
Glen Burnie, MD

Average pressure in September - Glen Burnie, 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).

Average wind speed in September
Glen Burnie, MD

Average wind speed in September - Glen Burnie, MD
  • Average wind speed in September: 6.6mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in September
Glen Burnie, MD

Average humidity in September - Glen Burnie, MD
  • Average humidity in September: 75%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are March, April and July (72%).

Average rainfall in September
Glen Burnie, MD

Average rainfall in September - Glen Burnie, MD
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in September
Glen Burnie, MD

Average rainfall days in September - Glen Burnie, MD
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and November (8.4 days).

Average snowfall in September
Glen Burnie, MD

Average snowfall in September - Glen Burnie, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Glen Burnie, MD

Average snowfall days in September - Glen Burnie, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Glen Burnie, MD

Average daylight in September / Average sunshine in September - Glen Burnie, 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).

Average sunshine days in September
Glen Burnie, MD

Average sunshine days in September - Glen Burnie, MD
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (19.9 days).
The months with the least sunshine days are May and July (10.8 days).

Average UV index in September
Glen Burnie, MD

Average UV index in September - Glen Burnie, 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).

Average cloud cover in September
Glen Burnie, MD

Average cloud cover in September - Glen Burnie, 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).

Average visibility in September
Glen Burnie, MD

Average visibility in September - Glen Burnie, 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).

Glen Burnie, Maryland, USA

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