September weather forecast
Downsville, TX

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Weather in September

The first month of the autumn, September, is still a tropical month in Downsville, Texas, with an average temperature fluctuating between 70.7°F (21.5°C) and 88.7°F (31.5°C).

Temperature

Downsville's September weather shows a modest shift in high-temperatures, falling from August's torrid 96.4°F (35.8°C) to a hot 88.7°F (31.5°C). An average nighttime temperature of 70.7°F (21.5°C) is witnessed throughout September.

Heat index

The heat index in September is appraised at a torrid 98.6°F (37°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In Downsville, the average relative humidity in September is 65%.

Rainfall

In Downsville, Texas, in September, during 14.9 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Downsville, during the entire year, the rain falls for 143.6 days and collects up to 29.33" (745mm) of precipitation.

Snowfall

April through December are months without snowfall in Downsville, Texas.

Daylight

In September, the average length of the day in Downsville is 12h and 21min.
On the first day of September, sunrise is at 7:04 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:14 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September in Downsville is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

Is it hot in Downsville during September?

In Downsville, in September, the average high-temperature is 88.7°F (31.5°C), and the average low-temperature is 70.7°F (21.5°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 98.6°F (37°C).

What is the average humidity in September in Downsville?

In September, the average relative humidity in Downsville, Texas, is 65%.

How much does it rain in Downsville in September?

In September, the rain falls for 14.9 days. Throughout September, 2.4" (61mm) of precipitation is accumulated.

When it does not snow in Downsville?

In Downsville, snow does not fall in April through December.

How many hours of daylight does Downsville have in September?

In Downsville, the average day length in September is 12h and 21min.

When are sunrise and sunset in September in Downsville?

On the first day of September in Downsville, sunrise is at 7:04 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:14 pm CDT.

How long on average sun shines in September in Downsville?

In September, the average sunshine duration in Downsville, Texas, is 8.6h.

How high is the UV index in September in Downsville?

In Downsville, Texas, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high 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
Downsville, TX

Average temperature in September - Downsville, TX
  • Average high temperature in September: 88.7°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 70.7°F

The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

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Average pressure in September
Downsville, TX

Average pressure in September - Downsville, TX
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Downsville, TX

Average wind speed in September - Downsville, TX
  • Average wind speed in September: 6.9mph

The windiest month (with the highest average wind speed) is March (10.5mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).

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Average humidity in September
Downsville, TX

Average humidity in September - Downsville, TX
  • Average humidity in September: 65%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (57%).

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Average rainfall in September
Downsville, TX

Average rainfall in September - Downsville, TX
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is October (4.17").
The driest month (with the least rainfall) is November (1.65").

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Average rainfall days in September
Downsville, TX

Average rainfall days in September - Downsville, TX
  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Downsville, TX

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

The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Downsville, TX

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

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 4min

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).

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Average sunshine days in September
Downsville, TX

Average sunshine days in September - Downsville, TX
  • Average sunshine days in September: 13.1 days

The month with the most sunshine days is January (21.2 days).
The months with the least sunshine days are April and September (13.1 days).

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Average UV index in September
Downsville, TX

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

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in September
Downsville, TX

Average cloud cover in September - Downsville, TX
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in September
Downsville, TX

Average visibility in September - Downsville, TX
  • 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).

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Downsville, Texas, USA

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