September weather forecast
Oak Forest Park, MD

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Weather in September

The first month of the autumn, September, is still a warm month in Oak Forest Park, Maryland, with an average temperature fluctuating between 76.8°F (24.9°C) and 60.4°F (15.8°C).

Temperature

Oak Forest Park's progression into September involves a minor drop in the average high-temperature, slightly receding from a moderately hot 83.5°F (28.6°C) in August to a still warm 76.8°F (24.9°C). The temperature lowers to an average of 60.4°F (15.8°C) during September nights.

Humidity

In Oak Forest Park, the average relative humidity in September is 75%.

Rainfall

In Oak Forest Park, during September, the rain falls for 13.1 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 165.5 rainfall days, and 31.65" (804mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:37 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 9.1h.

UV index

In Oak Forest Park, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 in September interprets into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

What are the temperatures in September?

The high-temperature, in September, in Oak Forest Park, records 76.8°F (24.9°C), while the low-temperature is 60.4°F (15.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 89.6°F (32°C).

What is the average humidity in September?

In Oak Forest Park, the average relative humidity in September is 75%.

How much does it rain in September?

In Oak Forest Park, in September, during 13.1 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

When it does not snow?

In Oak Forest Park, snow does not fall in May through October.

What is the average length of the day in September in Oak Forest Park?

In September, the average day length in Oak Forest Park is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:36 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:50 pm EDT.

How long on average sun shines in September?

In Oak Forest Park, the average sunshine duration in September is 9.1h.

What is the UV index reading in September?

In Oak Forest Park, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes 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
Oak Forest Park, MD

Average temperature in September - Oak Forest Park, MD
  • Average high temperature in September: 76.8°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 (38.1°F).

  • Average low temperature in September: 60.4°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in September
Oak Forest Park, MD

Average pressure in September - Oak Forest Park, 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
Oak Forest Park, MD

Average wind speed in September - Oak Forest Park, MD
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Oak Forest Park, MD

Average humidity in September - Oak Forest Park, MD
  • Average humidity in September: 75%

The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).

Average rainfall in September
Oak Forest Park, MD

Average rainfall in September - Oak Forest Park, MD
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in September
Oak Forest Park, MD

Average rainfall days in September - Oak Forest Park, MD
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in September
Oak Forest Park, MD

Average snowfall in September - Oak Forest Park, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Oak Forest Park, MD

Average snowfall days in September - Oak Forest Park, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.9 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
Oak Forest Park, MD

Average daylight in September / Average sunshine in September - Oak Forest Park, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Oak Forest Park, MD

Average sunshine days in September - Oak Forest Park, MD
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in September
Oak Forest Park, MD

Average UV index in September - Oak Forest Park, 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
Oak Forest Park, MD

Average cloud cover in September - Oak Forest Park, MD
  • Average cloud cover in September: 35

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in September
Oak Forest Park, MD

Average visibility in September - Oak Forest Park, 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).

Oak Forest Park, Maryland, USA

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