September weather forecast
Harwood, MD

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Weather in September

September, the first month of the autumn in Harwood, is still a warm month, with an average temperature ranging between min 64.9°F (18.3°C) and max 76.8°F (24.9°C).

Temperature

The beginning of September brings a slight decrease in the average high-temperature, transitioning from 82.9°F (28.3°C) in August to a still warm 76.8°F (24.9°C). Harwood witnesses an average low-temperature of 64.9°F (18.3°C) throughout the month of September.

Humidity

In Harwood, the average relative humidity in September is 75%.

Rainfall

In September, the rain falls for 10.9 days. Throughout September, 0.83" (21mm) of precipitation is accumulated. In Harwood, Maryland, during the entire year, the rain falls for 127.2 days and collects up to 11.85" (301mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 6:36 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.

Sunshine

The average sunshine in September is 9.2h.

UV index

In Harwood, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What are September temperatures?

The high-temperature, in September, in Harwood, is 76.8°F (24.9°C), while the low-temperature averages to 64.9°F (18.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is computed to be 89.6°F (32°C).

What is the average humidity in September?

In Harwood, the average relative humidity in September is 75%.

How much does it rain in September?

In Harwood, Maryland, in September, it is raining for 10.9 days, with typically 0.83" (21mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in September?

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 6:36 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 long on average sun shines in September?

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

What is the UV index intensity in September?

In Harwood, the average daily maximum UV index in September 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
Harwood, MD

Average temperature in September - Harwood, MD
  • Average high temperature in September: 76.8°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in September
Harwood, MD

Average pressure in September - Harwood, MD
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Harwood, MD

Average wind speed in September - Harwood, MD
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

Average humidity in September
Harwood, MD

Average humidity in September - Harwood, 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 and November (72%).

Average rainfall in September
Harwood, MD

Average rainfall in September - Harwood, MD
  • Average rainfall in September: 0.83"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in September
Harwood, MD

Average rainfall days in September - Harwood, MD
  • Average rainfall days in September: 10.9 days

The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is November (5.9 days).

Average snowfall in September
Harwood, MD

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

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Harwood, MD

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

The month with the highest number of snowfall days is January (2.6 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, MD

Average daylight in September / Average sunshine in September - Harwood, MD
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
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 months with the least sunshine are February and December (Average sunshine: 5h and 12min).

Average sunshine days in September
Harwood, MD

Average sunshine days in September - Harwood, MD
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is November (22.6 days).
The month with the least sunshine days is August (12.5 days).

Average UV index in September
Harwood, MD

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

Average cloud cover in September
Harwood, MD

Average cloud cover in September - Harwood, MD
  • Average cloud cover in September: 33

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September
Harwood, MD

Average visibility in September - Harwood, 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, Maryland, USA

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