September weather forecast
Culpepper, TN

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Weather in September

The first month of the autumn, September, is still a warm month in Culpepper, Tennessee, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 61°F (16.1°C).

Temperature

With the onset of September, Culpepper's average high-temperature slightly adjusts, moderately receding from August's hot 86.4°F (30.2°C) to a warm 81°F (27.2°C). The mean low-temperature during September nights in Culpepper is a refreshing 61°F (16.1°C).

Heat index

September's average heat index is computed to be a tropical 86°F (30°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

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

Rainfall

The month with the least rainfall in Culpepper is September, when the rain falls for 13.9 days and typically collects 2.28" (58mm) of precipitation.

Snowfall

May through October are months without snowfall in Culpepper.

Daylight

The average length of the day in September in Culpepper is 12h and 23min.
On the first day of September in Culpepper, sunrise is at 6:17 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:29 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Culpepper is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Culpepper?

The average high-temperature and low-temperature during September are 81°F (27.2°C) and 61°F (16.1°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 86°F (30°C).

What is the average humidity in September in Culpepper?

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

What is the driest month in Culpepper?

September is the month with the least rainfall in Culpepper, Tennessee. Rain falls for 13.9 days and accumulates 2.28" (58mm) of precipitation.

How many days does it rain in September in Culpepper?

In Culpepper, in September, during 13.9 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow in Culpepper?

May through October are months without snowfall in Culpepper, Tennessee.

How many hours of daylight does Culpepper have in September?

In Culpepper, Tennessee, the average day length in September is 12h and 23min.

When are sunrise and sunset in September in Culpepper?

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:11 pm. On the last day of the month, in Culpepper, sunrise is at 6:39 am and sunset at 6:29 pm CDT.

How long on average sun shines in September in Culpepper?

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

What is the UV index reading in September in Culpepper?

In Culpepper, Tennessee, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes 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
Culpepper, TN

Average temperature in September - Culpepper, TN
  • Average high temperature in September: 81°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

Average pressure in September
Culpepper, TN

Average pressure in September - Culpepper, TN
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Culpepper, TN

Average wind speed in September - Culpepper, TN
  • Average wind speed in September: 4.6mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in September
Culpepper, TN

Average humidity in September - Culpepper, TN
  • Average humidity in September: 76%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in September
Culpepper, TN

Average rainfall in September - Culpepper, TN
  • Average rainfall in September: 2.28"

The wettest months (with the highest rainfall) are February and July (4.45").
The driest month (with the least rainfall) is September (2.28").

Average rainfall days in September
Culpepper, TN

Average rainfall days in September - Culpepper, TN
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in September
Culpepper, TN

Average snowfall in September - Culpepper, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Culpepper, TN

Average snowfall days in September - Culpepper, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Culpepper, TN

Average daylight in September / Average sunshine in September - Culpepper, TN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in September
Culpepper, TN

Average sunshine days in September - Culpepper, TN
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in September
Culpepper, TN

Average UV index in September - Culpepper, TN
  • 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
Culpepper, TN

Average cloud cover in September - Culpepper, TN
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Culpepper, TN

Average visibility in September - Culpepper, TN
  • Average visibility in September: 6mi

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

Culpepper, Tennessee, USA

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