September weather forecast
Halls Hills, MD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Halls Hills, Maryland, with an average temperature ranging between min 65.1°F (18.4°C) and max 76.6°F (24.8°C).

Temperature

The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 82.9°F (28.3°C) in August to a still moderately hot 76.6°F (24.8°C). Halls Hills anticipates an average minimum temperature of 65.1°F (18.4°C) in the month of September.

Humidity

In Halls Hills, the average relative humidity in September is 76%.

Rainfall

In Halls Hills, in September, it is raining for 12.3 days, with typically 1.06" (27mm) of accumulated precipitation. In Halls Hills, during the entire year, the rain falls for 132.3 days and collects up to 15.83" (402mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Halls Hills, the average length of the day in September is 12h and 26min.
On the first day of September, 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 Halls Hills, the average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a regular UV index of 5 translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

September temperatures vary between a high-temperature of 76.6°F (24.8°C) and a low-temperature of 65.1°F (18.4°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is computed to be 89.6°F (32°C).

What is the average humidity in September?

In Halls Hills, the average relative humidity in September is 76%.

How much does it rain in September?

In Halls Hills, during September, the rain falls for 12.3 days and regularly aggregates up to 1.06" (27mm) of precipitation.

When it does not snow?

In Halls Hills, Maryland, snow does not fall in April through October.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, 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 Halls Hills have in September?

In Halls Hills, the average sunshine duration in September is 9.2h.

How high is the UV index in September?

The average daily maximum UV index in September in Halls Hills, Maryland, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Halls Hills, MD

Average temperature in September - Halls Hills, MD
  • Average high temperature in September: 76.6°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 (40.6°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in September
Halls Hills, MD

Average pressure in September - Halls Hills, 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
Halls Hills, MD

Average wind speed in September - Halls Hills, MD
  • Average wind speed in September: 7.7mph

The windiest months (with the highest average wind speed) are January and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in September
Halls Hills, MD

Average humidity in September - Halls Hills, MD
  • Average humidity in September: 76%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (72%).

Average rainfall in September
Halls Hills, MD

Average rainfall in September - Halls Hills, MD
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is August (2.4").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in September
Halls Hills, MD

Average rainfall days in September - Halls Hills, MD
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (6.6 days).

Average snowfall in September
Halls Hills, MD

Average snowfall in September - Halls Hills, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Halls Hills, MD

Average snowfall days in September - Halls Hills, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2.9 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
Halls Hills, MD

Average daylight in September / Average sunshine in September - Halls Hills, MD
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
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
Halls Hills, MD

Average sunshine days in September - Halls Hills, MD
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.7 days).

Average UV index in September
Halls Hills, MD

Average UV index in September - Halls Hills, 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 and December (UV index 2).

Average cloud cover in September
Halls Hills, MD

Average cloud cover in September - Halls Hills, MD
  • Average cloud cover in September: 33

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September
Halls Hills, MD

Average visibility in September - Halls Hills, 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).

Halls Hills, Maryland, USA

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