September weather forecast
Montgomery Village, MD

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Weather in September

September, the first month of the autumn in Montgomery Village, is still a warm month, with an average temperature varying between 59.9°F (15.5°C) and 77.7°F (25.4°C).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's moderately hot 84.6°F (29.2°C) to a still warm 77.7°F (25.4°C). Montgomery Village's average low-temperature in the month of September is recorded at a moderate 59.9°F (15.5°C).

Humidity

In September, the average relative humidity in Montgomery Village is 75%.

Rainfall

In September, the rain falls for 12.9 days. Throughout September, 1.97" (50mm) of precipitation is accumulated. Throughout the year, in Montgomery Village, there are 154.8 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

In September, the average length of the day in Montgomery Village is 12h and 26min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:52 pm EDT.

Sunshine

In September, the average sunshine in Montgomery Village is 9h.

UV index

In Montgomery Village, 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 radiation for average individuals.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

What is the average September temperature in Montgomery Village?

In September, in Montgomery Village, the average high-temperature is 77.7°F (25.4°C), and the average low-temperature is 59.9°F (15.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 93.2°F (34°C).

What is the average humidity in September in Montgomery Village?

The average relative humidity in September in Montgomery Village, Maryland, is 75%.

How many days does it rain in September in Montgomery Village?

In Montgomery Village, Maryland, during September, the rain falls for 12.9 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow in Montgomery Village?

June through October are months without snowfall in Montgomery Village.

What is the average length of the day in September in Montgomery Village?

In September, the average day length in Montgomery Village is 12h and 26min.

When is the sunrise / sunset in September in Montgomery Village?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 7:39 pm. On the last day of the month, in Montgomery Village, Maryland, sunrise is at 7:04 am and sunset at 6:52 pm EDT.

How long on average sun shines in September in Montgomery Village?

In Montgomery Village, the average sunshine duration in September is 9h.

What is the UV index reading in September in Montgomery Village?

In September, the average daily maximum UV index in Montgomery Village, 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
Montgomery Village, MD

Average temperature in September - Montgomery Village, MD
  • Average high temperature in September: 77.7°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in September
Montgomery Village, MD

Average pressure in September - Montgomery Village, 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 (29.95"Hg).

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Average wind speed in September
Montgomery Village, MD

Average wind speed in September - Montgomery Village, MD
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in September
Montgomery Village, MD

Average humidity in September - Montgomery Village, MD
  • Average humidity in September: 75%

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

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Average rainfall in September
Montgomery Village, MD

Average rainfall in September - Montgomery Village, MD
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.73").

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Average rainfall days in September
Montgomery Village, MD

Average rainfall days in September - Montgomery Village, MD
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in September
Montgomery Village, MD

Average snowfall in September - Montgomery Village, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Montgomery Village, MD

Average snowfall days in September - Montgomery Village, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Montgomery Village, MD

Average daylight in September / Average sunshine in September - Montgomery Village, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Montgomery Village, MD

Average sunshine days in September - Montgomery Village, MD
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in September
Montgomery Village, MD

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

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Average cloud cover in September
Montgomery Village, MD

Average cloud cover in September - Montgomery Village, MD
  • Average cloud cover in September: 36

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in September
Montgomery Village, MD

Average visibility in September - Montgomery Village, MD
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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Montgomery Village, Maryland, USA

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