September weather forecast
Rochelle, VA

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Weather in September

September, the first month of the autumn in Rochelle, is still a warm month, with an average temperature fluctuating between 59.2°F (15.1°C) and 79.2°F (26.2°C).

Temperature

In September, the meteorological conditions change slightly, with the average high-temperature moving from a tropical 86°F (30°C) in August to a warm 79.2°F (26.2°C). Rochelle registers a consistent average low-temperature of 59.2°F (15.1°C) during September.

Humidity

In September, the average relative humidity is 76%.

Rainfall

January and September are months with the least rain in Rochelle when the rain falls for 13.2 days and typically aggregates up to 1.85" (47mm) of rain.

Snowfall

In Rochelle, snow does not fall in May through October.

Daylight

In Rochelle, Virginia, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:43 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:57 pm EDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 5 in September transforms into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Rochelle in September?

In September, the average high-temperature and low-temperature are 79.2°F (26.2°C) and 59.2°F (15.1°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 96.8°F (36°C).

What is the average humidity in September?

In Rochelle, the average relative humidity in September is 76%.

What is the driest month?

January and September are months with the least rain when the rain falls for 13.2 days and typically aggregates up to 1.85" (47mm) of rain.

How much does it rain in September?

In Rochelle, during September, the rain falls for 13.2 days and regularly aggregates up to 1.85" (47mm) of precipitation.

When it does not snow?

In Rochelle, snow does not fall in May through October.

How many hours of daylight does Rochelle have in September?

The average day length in September is 12h and 25min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:43 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:57 pm EDT.

How many hours of sunshine does Rochelle have in September?

In September, the average sunshine duration is 8.8h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents 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
Rochelle, VA

Average temperature in September - Rochelle, VA
  • Average high temperature in September: 79.2°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in September: 59.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in September
Rochelle, VA

Average pressure in September - Rochelle, VA
  • 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 (29.96"Hg).

Average wind speed in September
Rochelle, VA

Average wind speed in September - Rochelle, VA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in September
Rochelle, VA

Average humidity in September - Rochelle, VA
  • Average humidity in September: 76%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).

Average rainfall in September
Rochelle, VA

Average rainfall in September - Rochelle, VA
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is April (2.95").
The driest months (with the least rainfall) are January and September (1.85").

Average rainfall days in September
Rochelle, VA

Average rainfall days in September - Rochelle, VA
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in September
Rochelle, VA

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

The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Rochelle, VA

Average snowfall days in September - Rochelle, VA
  • 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
Rochelle, VA

Average daylight in September / Average sunshine in September - Rochelle, 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 36min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Rochelle, VA

Average sunshine days in September - Rochelle, VA
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in September
Rochelle, VA

Average UV index in September - Rochelle, VA
  • 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
Rochelle, VA

Average cloud cover in September - Rochelle, VA
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in September
Rochelle, VA

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

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

Rochelle, Virginia, USA

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