September weather forecast
Yorktown, GA

Share

Weather in September

September, the first month of the autumn in Yorktown, is still a warm month, with an average temperature varying between 64.9°F (18.3°C) and 83.7°F (28.7°C).

Temperature

September is characterized by a mild reduction in the average high-temperature, from a hot 89.1°F (31.7°C) in August to a moderately hot 83.7°F (28.7°C). Yorktown reports an average nighttime low-temperature of 64.9°F (18.3°C) in September.

Heat index

For September, the heat index is appraised at a hot 89.6°F (32°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In Yorktown, the average relative humidity in September is 70%.

Rainfall

In September, the rain falls for 12.3 days. Throughout September, 2.48" (63mm) of precipitation is accumulated. In Yorktown, during the entire year, the rain falls for 172.5 days and collects up to 40.59" (1031mm) of precipitation.

Snowfall

April through October are months without snowfall in Yorktown.

Daylight

In Yorktown, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:21 pm EDT.

Sunshine

The average sunshine in September in Yorktown is 8.4h.

UV index

In September, the average daily maximum UV index in Yorktown is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

The high-temperature, in September, in Yorktown, records 83.7°F (28.7°C), while the low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is appraised at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 70%.

How many days does it rain in September?

In Yorktown, in September, during 12.3 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall in Yorktown.

How many hours of daylight does Yorktown have in September?

The average day length in September is 12h and 22min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:21 pm EDT.

How many hours of sunshine does Yorktown have in September?

In September, the average sunshine duration is 8.4h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes 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
Yorktown, GA

Average temperature in September - Yorktown, GA
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

Average pressure in September
Yorktown, GA

Average pressure in September - Yorktown, GA
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Yorktown, GA

Average wind speed in September - Yorktown, GA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in September
Yorktown, GA

Average humidity in September - Yorktown, GA
  • Average humidity in September: 70%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

Average rainfall in September
Yorktown, GA

Average rainfall in September - Yorktown, GA
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is August (5.04").
The driest month (with the least rainfall) is October (2.17").

Average rainfall days in September
Yorktown, GA

Average rainfall days in September - Yorktown, GA
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is July (20 days).
The months with the least rainy days are October and November (9.7 days).

Average snowfall in September
Yorktown, GA

Average snowfall in September - Yorktown, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Yorktown, GA

Average snowfall days in September - Yorktown, GA
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (1.3 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
Yorktown, GA

Average daylight in September / Average sunshine in September - Yorktown, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 2min

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 0min).

Average sunshine days in September
Yorktown, GA

Average sunshine days in September - Yorktown, GA
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (9 days).

Average UV index in September
Yorktown, GA

Average UV index in September - Yorktown, GA
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Yorktown, GA

Average cloud cover in September - Yorktown, GA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in September
Yorktown, GA

Average visibility in September - Yorktown, GA
  • 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).

Yorktown, Georgia, USA

Weather forecast for your location

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