September weather forecast
Harwood Park, MD

Share

Weather in September

September, the first month of the autumn in Harwood Park, is also a moderately hot month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 61.7°F (16.5°C).

Temperature

The arrival of September correlates with a minor temperature reduction, down from August's moderately hot 84°F (28.9°C) to a still warm 77.5°F (25.3°C). Harwood Park experiences a nighttime temperature average of 61.7°F (16.5°C) during September.

Humidity

The average relative humidity in September is 74%.

Rainfall

In Harwood Park, in September, it is raining for 13.4 days, with typically 2.2" (56mm) of accumulated precipitation. In Harwood Park, during the entire year, the rain falls for 158.5 days and collects up to 30.12" (765mm) of precipitation.

Snowfall

In Harwood Park, snow does not fall in April through October.

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

The average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What is the average September temperature?

In Harwood Park, in September, the average high-temperature is 77.5°F (25.3°C), and the average low-temperature is 61.7°F (16.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is computed to be 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How many days does it rain in September in Harwood Park?

In September, the rain falls for 13.4 days. Throughout September, 2.2" (56mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall in Harwood Park.

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

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

What time are sunrise and sunset in September?

On the first day of September in Harwood Park, 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?

The average sunshine duration in September is 9.3h.

What is the UV index intensity in September?

In Harwood Park, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to 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
Harwood Park, MD

Average temperature in September - Harwood Park, MD
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in September
Harwood Park, MD

Average pressure in September - Harwood 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
Harwood Park, MD

Average wind speed in September - Harwood Park, MD
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Harwood Park, MD

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

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

Average rainfall in September
Harwood Park, MD

Average rainfall in September - Harwood Park, MD
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in September
Harwood Park, MD

Average rainfall days in September - Harwood Park, MD
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in September
Harwood Park, MD

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

The month with the highest snowfall is January (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Harwood Park, MD

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

The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Harwood Park, MD

Average daylight in September / Average sunshine in September - Harwood 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 2min

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
Harwood Park, MD

Average sunshine days in September - Harwood Park, MD
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (19.8 days).
The months with the least sunshine days are May and July (10.9 days).

Average UV index in September
Harwood Park, MD

Average UV index in September - Harwood 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
Harwood Park, MD

Average cloud cover in September - Harwood Park, MD
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in September
Harwood Park, MD

Average visibility in September - Harwood 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).

Harwood Park, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location