September weather forecast
Port Deposit, MD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Port Deposit, Maryland, with temperature in the range of an average low of 59.7°F (15.4°C) and an average high of 76.5°F (24.7°C).

Temperature

The advent of September brings a slight shift in average high-temperature, moving from a moderately hot 82.6°F (28.1°C) in August to a still warm 76.5°F (24.7°C). Port Deposit's temperature drops to an average low of 59.7°F (15.4°C) during the nights of September.

Humidity

The average relative humidity in September in Port Deposit is 78%.

Rainfall

In September, in Port Deposit, the rain falls for 12.2 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Port Deposit, there are 149.9 rainfall days, and 29.41" (747mm) of precipitation is accumulated.

Snowfall

In Port Deposit, Maryland, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September in Port Deposit, sunrise is at 6:33 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:48 pm EDT.

Sunshine

In Port Deposit, Maryland, the average sunshine in September is 9.1h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What are the temperatures in Port Deposit in September?

During September, Port Deposit experiences an average high-temperature of 76.5°F (24.7°C) and a low-temperature of 59.7°F (15.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 89.6°F (32°C).

What is the average humidity in September in Port Deposit?

The average relative humidity in September in Port Deposit, Maryland, is 78%.

How many days does it rain in September in Port Deposit?

In September, the rain falls for 12.2 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in Port Deposit?

In Port Deposit, Maryland, snow does not fall in May through October.

How many hours of daylight does Port Deposit have in September?

The average day length in September in Port Deposit, Maryland, is 12h and 26min.

When are sunrise and sunset in September in Port Deposit?

On the first day of September, sunrise is at 6:33 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:48 pm EDT.

How long on average sun shines in September in Port Deposit?

In September, the average sunshine duration in Port Deposit is 9.1h.

What is the UV index reading in September in Port Deposit?

In September, the average daily maximum UV index is 5. A UV Index 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
Port Deposit, MD

Average temperature in September - Port Deposit, MD
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in September: 59.7°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 (26.1°F).

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Average pressure in September
Port Deposit, MD

Average pressure in September - Port Deposit, 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).

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Average wind speed in September
Port Deposit, MD

Average wind speed in September - Port Deposit, MD
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in September
Port Deposit, MD

Average humidity in September - Port Deposit, MD
  • Average humidity in September: 78%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in September
Port Deposit, MD

Average rainfall in September - Port Deposit, MD
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in September
Port Deposit, MD

Average rainfall days in September - Port Deposit, MD
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in September
Port Deposit, MD

Average snowfall in September - Port Deposit, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Port Deposit, MD

Average snowfall days in September - Port Deposit, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Port Deposit, MD

Average daylight in September / Average sunshine in September - Port Deposit, 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 24min).

  • 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
Port Deposit, MD

Average sunshine days in September - Port Deposit, MD
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in September
Port Deposit, MD

Average UV index in September - Port Deposit, 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
Port Deposit, MD

Average cloud cover in September - Port Deposit, MD
  • Average cloud cover in September: 36

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in September
Port Deposit, MD

Average visibility in September - Port Deposit, 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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Port Deposit, Maryland, USA

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