September weather forecast
Roxbury, MD

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Weather in September

September, the first month of the autumn in Roxbury, is also a moderately hot month, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 76.5°F (24.7°C).

Temperature

September's arrival aligns with a minor decrease in average high-temperatures, from August's moderately hot 82.9°F (28.3°C) to a still warm 76.5°F (24.7°C). During the month of September, the nighttime temperature falls to an average of 58.6°F (14.8°C).

Humidity

The average relative humidity in September in Roxbury is 77%.

Rainfall

In Roxbury, Maryland, during September, the rain falls for 14.3 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, in Roxbury, there are 158.7 rainfall days, and 30.91" (785mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Roxbury.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:38 pm. On the last day of September, in Roxbury, sunrise is at 7:03 am and sunset at 6:51 pm EDT.

Sunshine

In September, the average sunshine in Roxbury is 9.1h.

UV index

In Roxbury, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What are September temperatures in Roxbury?

In September, the average high-temperature and low-temperature in Roxbury are 76.5°F (24.7°C) and 58.6°F (14.8°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in September in Roxbury?

The average relative humidity in September in Roxbury, Maryland, is 77%.

How much does it rain in Roxbury in September?

In September, in Roxbury, Maryland, the rain falls for 14.3 days. Throughout September, 2.17" (55mm) of precipitation is accumulated.

When it does not snow in Roxbury?

June through September are months without snowfall in Roxbury, Maryland.

Does it snow in Roxbury in September?

In Roxbury, Maryland, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Roxbury have in September?

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

When are sunrise and sunset in September in Roxbury?

On the first day of September in Roxbury, Maryland, sunrise is at 6:37 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:51 pm EDT.

How long on average sun shines in September in Roxbury?

In September, the average sunshine duration is 9.1h.

How high is the UV index in September in Roxbury?

In Roxbury, Maryland, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes 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
Roxbury, MD

Average temperature in September - Roxbury, MD
  • Average high temperature in September: 76.5°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 (37.8°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in September
Roxbury, MD

Average pressure in September - Roxbury, MD
  • Average pressure in September: 30.06"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
Roxbury, MD

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Roxbury, MD

Average humidity in September - Roxbury, MD
  • Average humidity in September: 77%

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).

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Average rainfall in September
Roxbury, MD

Average rainfall in September - Roxbury, MD
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.93").

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Average rainfall days in September
Roxbury, MD

Average rainfall days in September - Roxbury, MD
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in September
Roxbury, MD

Average snowfall in September - Roxbury, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Roxbury, MD

Average snowfall days in September - Roxbury, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Roxbury, MD

Average daylight in September / Average sunshine in September - Roxbury, 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: 4h and 54min).

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Average sunshine days in September
Roxbury, MD

Average sunshine days in September - Roxbury, MD
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in September
Roxbury, MD

Average UV index in September - Roxbury, MD
  • Average UV index in September: 4

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
Roxbury, MD

Average cloud cover in September - Roxbury, MD
  • Average cloud cover in September: 36

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in September
Roxbury, MD

Average visibility in September - Roxbury, 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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Roxbury, Maryland, USA

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