September weather forecast
Accident, MD

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Weather in September

The first month of the autumn, September, is still a pleasant month in Accident, Maryland, with an average temperature varying between 52.5°F (11.4°C) and 72.5°F (22.5°C).

Temperature

The onset of September brings a small shift in high-temperatures, falling from a moderately hot 78.3°F (25.7°C) in August to an agreeable 72.5°F (22.5°C). Accident in September anticipates an average nighttime temperature of 52.5°F (11.4°C).

Humidity

The average relative humidity in September is 80%.

Rainfall

In Accident, during September, the rain falls for 15.9 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 166.9 rainfall days, and 30.55" (776mm) of precipitation is accumulated.

Snowfall

In Accident, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 6:46 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:00 pm EDT.

Sunshine

In Accident, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Ensure safety - Recommendations to avert sunburn are presented. To protect against the Sun's most potent rays, avoid direct exposure around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What is the temperature in September?

The average high-temperature and low-temperature during September are 72.5°F (22.5°C) and 52.5°F (11.4°C) respectively.

What is the average humidity in September?

In Accident, the average relative humidity in September is 80%.

How much does it rain in Accident in September?

In Accident, in September, during 15.9 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

When it does not snow in Accident?

June through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:46 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:00 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents 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
Accident, MD

Average temperature in September - Accident, MD
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in September: 52.5°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in September
Accident, MD

Average pressure in September - Accident, 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).

Average wind speed in September
Accident, MD

Average wind speed in September - Accident, MD
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Accident, MD

Average humidity in September - Accident, MD
  • Average humidity in September: 80%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June, July and August (79%).

Average rainfall in September
Accident, MD

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

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.85").

Average rainfall days in September
Accident, MD

Average rainfall days in September - Accident, MD
  • Average rainfall days in September: 15.9 days

The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September
Accident, MD

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

The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Accident, MD

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

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Accident, 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: 8h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in September
Accident, MD

Average sunshine days in September - Accident, MD
  • Average sunshine days in September: 11.7 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (8.3 days).

Average UV index in September
Accident, MD

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

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Accident, MD

Average cloud cover in September - Accident, MD
  • Average cloud cover in September: 43

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility in September
Accident, MD

Average visibility in September - Accident, MD
  • Average visibility in September: 4mi

The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (5mi).
The month with the lowest visibility is September (4mi).

Accident, Maryland, USA

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