September weather forecast
Nelsonville, TX

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Weather in September

September, the first month of the autumn in Nelsonville, is still a tropical month, with an average temperature fluctuating between 88.5°F (31.4°C) and 70.7°F (21.5°C).

Temperature

Nelsonville's progression into September involves a gentle drop in the average high-temperature, from a sweltering 95°F (35°C) in August to a hot 88.5°F (31.4°C). The average temperature in Nelsonville drops to a pleasant 70.7°F (21.5°C) during the night in the month of September.

Heat index

During September, the heat index is computed to be an extremely hot 104°F (40°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in September in Nelsonville is 75%.

Rainfall

In Nelsonville, during September, the rain falls for 18.2 days and regularly aggregates up to 3.5" (89mm) of precipitation. Throughout the year, there are 175.5 rainfall days, and 32.64" (829mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall.

Daylight

In Nelsonville, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:03 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:11 pm CDT.

Sunshine

The average sunshine in September in Nelsonville is 8.4h.

UV index

In Nelsonville, Texas, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

Is it hot in Nelsonville during September?

The high-temperature, in September, in Nelsonville, records 88.5°F (31.4°C), while the low-temperature is 70.7°F (21.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 104°F (40°C).

What is the average humidity in September in Nelsonville?

In September, the average relative humidity in Nelsonville is 75%.

How many days does it rain in September in Nelsonville?

In Nelsonville, Texas, during September, the rain falls for 18.2 days and regularly aggregates up to 3.5" (89mm) of precipitation.

When it does not snow in Nelsonville?

In Nelsonville, Texas, snow does not fall in March through November.

How many hours of daylight does Nelsonville have in September?

The average day length in September in Nelsonville is 12h and 20min.

When are sunrise and sunset in September in Nelsonville?

In September, on the first day of the month, sunrise is at 7:03 am and sunset at 7:47 pm. On the last day of the month, in Nelsonville, Texas, sunrise is at 7:18 am and sunset at 7:11 pm CDT.

How many hours of sunshine does Nelsonville have in September?

The average sunshine duration in September in Nelsonville, Texas, is 8.4h.

How high is the UV index in September in Nelsonville?

The average daily maximum UV index in September in Nelsonville is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Nelsonville, TX

Average temperature in September - Nelsonville, TX
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (59.7°F).

  • Average low temperature in September: 70.7°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).

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Average pressure in September
Nelsonville, TX

Average pressure in September - Nelsonville, TX
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Nelsonville, TX

Average wind speed in September - Nelsonville, TX
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is September (5.8mph).

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Average humidity in September
Nelsonville, TX

Average humidity in September - Nelsonville, TX
  • Average humidity in September: 75%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in September
Nelsonville, TX

Average rainfall in September - Nelsonville, TX
  • Average rainfall in September: 3.5"

The wettest month (with the highest rainfall) is May (4.76").
The driest month (with the least rainfall) is November (1.69").

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Average rainfall days in September
Nelsonville, TX

Average rainfall days in September - Nelsonville, TX
  • Average rainfall days in September: 18.2 days

The month with the highest number of rainy days is September (18.2 days).
The month with the least rainy days is January (11.8 days).

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Average snowfall in September
Nelsonville, TX

Average snowfall in September - Nelsonville, TX
  • Average snowfall in September: 0"

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Nelsonville, TX

Average snowfall days in September - Nelsonville, TX
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and December (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Nelsonville, TX

Average daylight in September / Average sunshine in September - Nelsonville, TX
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Nelsonville, TX

Average sunshine days in September - Nelsonville, TX
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is June (9.7 days).

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Average UV index in September
Nelsonville, TX

Average UV index in September - Nelsonville, TX
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Nelsonville, TX

Average cloud cover in September - Nelsonville, TX
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in September
Nelsonville, TX

Average visibility in September - Nelsonville, TX
  • Average visibility in September: 6mi

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

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Nelsonville, Texas, USA

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