September weather forecast
Chartridge, MD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Chartridge, Maryland, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 77.4°F (25.2°C).

Temperature

September indicates a minor shift in the average high-temperature, from August's 83.7°F (28.7°C) to a still warm 77.4°F (25.2°C). During the month of September, the temperature falls to an average of 63.3°F (17.4°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

In Chartridge, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In Chartridge, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in September interprets into the following advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What are the temperatures in September?

The high-temperature, in September, in Chartridge, records 77.4°F (25.2°C), while the low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 91.4°F (33°C).

What is the average humidity in September in Chartridge?

The average relative humidity in September is 75%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.89" (48mm) of precipitation.

How many days does it rain in September in Chartridge?

In Chartridge, in September, during 11.8 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow?

In Chartridge, snow does not fall in May through October.

How many hours of daylight does Chartridge have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

How many hours of sunshine does Chartridge have in September?

In Chartridge, the average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

In Chartridge, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from 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
Chartridge, MD

Average temperature in September - Chartridge, MD
  • Average high temperature in September: 77.4°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 (39.6°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in September
Chartridge, MD

Average pressure in September - Chartridge, 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 (29.94"Hg).

Average wind speed in September
Chartridge, MD

Average wind speed in September - Chartridge, MD
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in September
Chartridge, MD

Average humidity in September - Chartridge, MD
  • Average humidity in September: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in September
Chartridge, MD

Average rainfall in September - Chartridge, MD
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in September
Chartridge, MD

Average rainfall days in September - Chartridge, MD
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in September
Chartridge, MD

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

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Chartridge, MD

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

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Chartridge, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in September
Chartridge, MD

Average sunshine days in September - Chartridge, MD
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in September
Chartridge, MD

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

Average cloud cover in September
Chartridge, MD

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

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

Average visibility in September
Chartridge, MD

Average visibility in September - Chartridge, 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).

Chartridge, Maryland, USA

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