September weather forecast
Oak Park, MD

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Weather in September

September, the first month of the autumn in Oak Park, is also a moderately hot month, with an average temperature fluctuating between 78.6°F (25.9°C) and 61.7°F (16.5°C).

Temperature

With the commencement of September, Oak Park records a moderate temperature decline, with the average high easing from August's 85.6°F (29.8°C) to a still warm 78.6°F (25.9°C). In Oak Park, the average temperature during the nights of September drops to a refreshing 61.7°F (16.5°C).

Humidity

The average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 1.93" (49mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:35 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.

Sunshine

The average sunshine in September is 9h.

UV index

In Oak Park, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 5 in September transforms into this advice:
Take precautions - Protection against skin and eye damage is obliged. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

What are the temperatures in September?

The high-temperature during September is 78.6°F (25.9°C) and the low-temperature is 61.7°F (16.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is estimated at 95°F (35°C).

What is the average humidity in September?

In Oak Park, the average relative humidity in September is 74%.

What is the driest month?

The month with the least rainfall in Oak Park is September, when the rain falls for 11.9 days and typically collects 1.93" (49mm) of precipitation.

How much does it rain in September?

In Oak Park, in September, it is raining for 11.9 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Oak Park have in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:35 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 Park, the average sunshine duration in September is 9h.

What is the UV index intensity in September?

In Oak Park, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Oak Park, MD

Average temperature in September - Oak Park, MD
  • Average high temperature in September: 78.6°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in September
Oak Park, MD

Average pressure in September - Oak 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 (29.95"Hg).

Average wind speed in September
Oak Park, MD

Average wind speed in September - Oak Park, MD
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Oak Park, MD

Average humidity in September - Oak Park, MD
  • Average humidity in September: 74%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall in September
Oak Park, MD

Average rainfall in September - Oak Park, MD
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in September
Oak Park, MD

Average rainfall days in September - Oak Park, MD
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Oak Park, MD

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

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Oak Park, MD

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

The month with the highest number of snowfall days is January (4.5 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 Park, MD

Average daylight in September / Average sunshine in September - Oak 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 0min

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 6min).

Average sunshine days in September
Oak Park, MD

Average sunshine days in September - Oak Park, MD
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in September
Oak Park, MD

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

Average cloud cover in September
Oak Park, MD

Average cloud cover in September - Oak Park, 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
Oak Park, MD

Average visibility in September - Oak Park, 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).

Oak Park, Maryland, USA

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