September weather forecast
Earleigh Heights, MD

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Weather in September

September, the first month of the autumn in Earleigh Heights, 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

The start of September involves a subtle temperature drop, shifting from 83.7°F (28.7°C) in August to a still moderately hot 77.4°F (25.2°C). Nighttime temperatures consistently average a comfortable 63.3°F (17.4°C) during September.

Humidity

In September, the average relative humidity is 75%.

Rainfall

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

Snowfall

May through October are months without snowfall in Earleigh Heights.

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

In Earleigh Heights, the average sunshine in September is 9.2h.

UV index

In Earleigh Heights, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

What are the temperatures in September?

In Earleigh Heights, in September, the average high-temperature is 77.4°F (25.2°C), and the average low-temperature is 63.3°F (17.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 91.4°F (33°C).

What is the average humidity in September?

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

What is the driest month?

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

How many days does it rain in September?

In Earleigh Heights, during September, the rain falls for 11.8 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Earleigh Heights have in September?

The average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

On the first day of September in Earleigh 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 many hours of sunshine does Earleigh Heights 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 health risk 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
Earleigh Heights, MD

Average temperature in September - Earleigh Heights, 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).

Average pressure in September
Earleigh Heights, MD

Average pressure in September - Earleigh 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).

Average wind speed in September
Earleigh Heights, MD

Average wind speed in September - Earleigh Heights, 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).

Average humidity in September
Earleigh Heights, MD

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

Average rainfall in September - Earleigh Heights, 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").

Average rainfall days in September
Earleigh Heights, MD

Average rainfall days in September - Earleigh Heights, 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).

Average snowfall in September
Earleigh Heights, MD

Average snowfall in September - Earleigh Heights, 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").

Average snowfall days in September
Earleigh Heights, MD

Average snowfall days in September - Earleigh Heights, 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).

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

Average daylight in September / Average sunshine in September - Earleigh 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 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).

Average sunshine days in September
Earleigh Heights, MD

Average sunshine days in September - Earleigh Heights, 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).

Average UV index in September
Earleigh Heights, MD

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

Average cloud cover in September
Earleigh Heights, MD

Average cloud cover in September - Earleigh Heights, 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).

Average visibility in September
Earleigh Heights, MD

Average visibility in September - Earleigh 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).

Earleigh Heights, Maryland, USA

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