September weather forecast
Charlene, MD

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Weather in September

September, the first month of the autumn in Charlene, is still a warm month, with an average temperature fluctuating between 59.9°F (15.5°C) and 77.7°F (25.4°C).

Temperature

Charlene's progression into September involves a gentle drop in the average high-temperature, from a moderately hot 84.6°F (29.2°C) in August to a still warm 77.7°F (25.4°C). An average low-temperature of 59.9°F (15.5°C) is expected during September.

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Charlene, in September, it is raining for 12.9 days, with typically 1.97" (50mm) of accumulated precipitation. In Charlene, during the entire year, the rain falls for 154.8 days and collects up to 29.09" (739mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

In Charlene, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm EDT.

Sunshine

In September, the average sunshine in Charlene is 9h.

UV index

In Charlene, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

What are September temperatures?

The high-temperature during September is 77.7°F (25.4°C) and the low-temperature is 59.9°F (15.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 93.2°F (34°C).

What is the average humidity in September?

The average relative humidity in September is 75%.

How many days does it rain in September?

In Charlene, in September, during 12.9 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow?

In Charlene, snow does not fall in June through October.

How many hours of daylight does Charlene have in September?

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

What time are sunrise and sunset in September in Charlene?

On the first day of September, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm EDT.

How long on average sun shines in September?

In Charlene, the average sunshine duration in September is 9h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Charlene, MD

Average temperature in September - Charlene, MD
  • Average high temperature in September: 77.7°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 59.9°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 (25.2°F).

Average pressure in September
Charlene, MD

Average pressure in September - Charlene, 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 (29.95"Hg).

Average wind speed in September
Charlene, MD

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

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in September
Charlene, MD

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

The months with the highest relative humidity are May, October and December (77%).
The month with the lowest relative humidity is July (72%).

Average rainfall in September
Charlene, MD

Average rainfall in September - Charlene, MD
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.73").

Average rainfall days in September
Charlene, MD

Average rainfall days in September - Charlene, MD
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in September
Charlene, MD

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

The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Charlene, MD

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

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Charlene, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Charlene, MD

Average sunshine days in September - Charlene, MD
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in September
Charlene, MD

Average UV index in September - Charlene, 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).

Average cloud cover in September
Charlene, MD

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

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in September
Charlene, MD

Average visibility in September - Charlene, 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).

Charlene, Maryland, USA

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