September weather forecast
Harrisonburg, VA

Share

Weather in September

September brings a notable decrease in temperatures, with average high temperatures dropping to 75.4°F (24.1°C) in Harrisonburg. This heralds the start of the autumn season with a crispness in the air and vibrant foliage transforming the cityscape. The shift in climate presents a perfectly balanced weather, neither too hot nor too cold. September proves to be a glorious entry into the fall season through colorful foliage and pleasing temperatures.

Temperature

Harrisonburg's September weather features a light decline in high-temperatures, reducing from a moderately hot 82°F (27.8°C) in August to a still warm 75.4°F (24.1°C). Harrisonburg experiences an average nighttime temperature of 54.5°F (12.5°C) in the month of September.

Humidity

May, September and October, with an average relative humidity of 78%, are the most humid months in Harrisonburg.

Rainfall

In Harrisonburg, Virginia, in September, it is raining for 14.5 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Harrisonburg, Virginia, there are 167.3 rainfall days, and 30.35" (771mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:45 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:59 pm EDT.

Sunshine

In Harrisonburg, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Be vigilant - A duty to shield skin and eyes from injury exists. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
[Resources]

Frequently asked questions

What is the usual temperature for Harrisonburg in September?

The high-temperature in Harrisonburg, Virginia, during September is 75.4°F (24.1°C) and the low-temperature is 54.5°F (12.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What are the most humid months in Harrisonburg?

The months with the highest humidity in Harrisonburg, Virginia, are May, September and October, with an average relative humidity of 78%.

What is the average humidity in September in Harrisonburg?

In Harrisonburg, the average relative humidity in September is 78%.

How many days does it rain in September in Harrisonburg?

In Harrisonburg, during September, the rain falls for 14.5 days and regularly aggregates up to 2.24" (57mm) of precipitation.

When it does not snow in Harrisonburg?

June through September are months without snowfall.

Does it snow in Harrisonburg in September?

In Harrisonburg, Virginia, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Harrisonburg have in September?

In Harrisonburg, the average day length in September is 12h and 25min.

What time are sunrise and sunset in September in Harrisonburg?

On the first day of September in Harrisonburg, Virginia, sunrise is at 6:45 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:59 pm EDT.

How many hours of sunshine does Harrisonburg have in September?

In Harrisonburg, the average sunshine duration in September is 8.5h.

What is the UV index intensity in September in Harrisonburg?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Harrisonburg, VA

Average temperature in September - Harrisonburg, VA
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

[Resources]

Average pressure in September
Harrisonburg, VA

Average pressure in September - Harrisonburg, VA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

[Resources]

Average wind speed in September
Harrisonburg, VA

Average wind speed in September - Harrisonburg, VA
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are February and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

[Resources]

Average humidity in September
Harrisonburg, VA

Average humidity in September - Harrisonburg, VA
  • Average humidity in September: 78%

The months with the highest relative humidity are May, September and October (78%).
The months with the lowest relative humidity are January and July (74%).

[Resources]

Average rainfall in September
Harrisonburg, VA

Average rainfall in September - Harrisonburg, VA
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is November (1.77").

[Resources]

Average rainfall days in September
Harrisonburg, VA

Average rainfall days in September - Harrisonburg, VA
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is November (9 days).

[Resources]

Average snowfall in September
Harrisonburg, VA

Average snowfall in September - Harrisonburg, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (4.45").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in September
Harrisonburg, VA

Average snowfall days in September - Harrisonburg, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Harrisonburg, VA

Average daylight in September / Average sunshine in September - Harrisonburg, VA
  • 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: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

[Resources]

Average sunshine days in September
Harrisonburg, VA

Average sunshine days in September - Harrisonburg, VA
  • Average sunshine days in September: 12.3 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (9.9 days).

[Resources]

Average UV index in September
Harrisonburg, VA

Average UV index in September - Harrisonburg, VA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in September
Harrisonburg, VA

Average cloud cover in September - Harrisonburg, VA
  • Average cloud cover in September: 39

The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June and July (Cloud cover 32).

[Resources]

Average visibility in September
Harrisonburg, VA

Average visibility in September - Harrisonburg, VA
  • Average visibility in September: 5mi

The months with the highest visibility are February, April, June, July and November (6mi).
The months with the lowest visibility are January, March, May, August, September, October and December (5mi).

[Resources]

Harrisonburg, Virginia, USA

Weather forecast for your location

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