September weather forecast
Casanova, VA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Casanova, Virginia, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 58.6°F (14.8°C).

Temperature

As August makes way for September, Casanova's average high-temperature eases from a moderately hot 84.9°F (29.4°C) to a still warm 78.1°F (25.6°C). In Casanova, an average temperature of 58.6°F (14.8°C) is noted during September nights.

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 1.85" (47mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

In Casanova, the average length of the day in September is 12h and 26min.
On the first day of September in Casanova, sunrise is at 6:40 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:54 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In Casanova, 78.1°F (25.6°C) is the average high-temperature and 58.6°F (14.8°C) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 93.2°F (34°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 1.85" (47mm) of precipitation.

How much does it rain in September?

In Casanova, in September, during 13.2 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

When it does not snow?

June through October are months without snowfall.

How many hours of daylight does Casanova have in September?

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

When is the sunrise / sunset in September in Casanova?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:54 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.9h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Casanova, VA

Average temperature in September - Casanova, VA
  • Average high temperature in September: 78.1°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in September
Casanova, VA

Average pressure in September - Casanova, 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 (29.95"Hg).

Average wind speed in September
Casanova, VA

Average wind speed in September - Casanova, VA
  • Average wind speed in September: 4.9mph

The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in September
Casanova, VA

Average humidity in September - Casanova, 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 (72%).

Average rainfall in September
Casanova, VA

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

The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Casanova, VA

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

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in September
Casanova, VA

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

The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Casanova, VA

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

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Casanova, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Casanova, VA

Average sunshine days in September - Casanova, VA
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.7 days).

Average UV index in September
Casanova, VA

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

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
Casanova, VA

Average cloud cover in September - Casanova, VA
  • Average cloud cover in September: 37

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
Casanova, VA

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

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

Casanova, Virginia, USA

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