September weather forecast
Trappe, MD

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Weather in September

September, the first month of the autumn in Trappe, is still a warm month, with an average temperature fluctuating between 63.7°F (17.6°C) and 77.4°F (25.2°C).

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from 82.9°F (28.3°C) to a still warm 77.4°F (25.2°C). In Trappe, September nights cool down to an average of 63.7°F (17.6°C).

Humidity

In September, the average relative humidity is 78%.

Rainfall

In September, in Trappe, the rain falls for 13.5 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 160.2 rainfall days, and 31.89" (810mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Trappe, Maryland, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:33 pm. On the last day of September, in Trappe, Maryland, sunrise is at 6:59 am and sunset at 6:48 pm EDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What are September temperatures in Trappe?

The average high-temperature, in September, in Trappe, is 77.4°F (25.2°C), while the average low-temperature is 63.7°F (17.6°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 89.6°F (32°C).

What is the average humidity in September in Trappe?

The average relative humidity in September in Trappe is 78%.

How much does it rain in Trappe in September?

In September, in Trappe, the rain falls for 13.5 days. Throughout September, 2.05" (52mm) of precipitation is accumulated.

When it does not snow in Trappe?

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

How many hours of daylight does Trappe have in September?

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

What time are sunrise and sunset in September in Trappe?

On the first day of September in Trappe, Maryland, sunrise is at 6:34 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:48 pm EDT.

How long on average sun shines in September in Trappe?

In September, the average sunshine duration in Trappe is 9.3h.

How high is the UV index in September in Trappe?

In September, the average daily maximum UV index in Trappe is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Trappe, MD

Average temperature in September - Trappe, MD
  • Average high temperature in September: 77.4°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 (40.8°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in September
Trappe, MD

Average pressure in September - Trappe, MD
  • Average pressure in September: 30.04"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
Trappe, MD

Average wind speed in September - Trappe, MD
  • Average wind speed in September: 7.1mph

The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in September
Trappe, MD

Average humidity in September - Trappe, MD
  • Average humidity in September: 78%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).

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Average rainfall in September
Trappe, MD

Average rainfall in September - Trappe, MD
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is January (2.01").

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Average rainfall days in September
Trappe, MD

Average rainfall days in September - Trappe, MD
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in September
Trappe, MD

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

The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Trappe, MD

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

The month with the highest number of snowfall days is January (3.5 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
Trappe, MD

Average daylight in September / Average sunshine in September - Trappe, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Trappe, MD

Average sunshine days in September - Trappe, MD
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in September
Trappe, MD

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

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Average cloud cover in September
Trappe, MD

Average cloud cover in September - Trappe, MD
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in September
Trappe, MD

Average visibility in September - Trappe, 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).

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Trappe, Maryland, USA

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