September weather forecast
Cedar Hill, TX

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Weather in September

September, the first month of the autumn in Cedar Hill, is also a hot month, with an average temperature fluctuating between 87.8°F (31°C) and 70.2°F (21.2°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a torrid 95.9°F (35.5°C) in August to a hot 87.8°F (31°C). During September, Cedar Hill's temperature averages to a pleasant 70.2°F (21.2°C) at night.

Heat index

The heat index value during September is estimated at a torrid 96.8°F (36°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Cedar Hill, the average relative humidity in September is 64%.

Rainfall

In Cedar Hill, in September, during 14.3 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, in Cedar Hill, there are 126.7 rainfall days, and 19.57" (497mm) of precipitation is accumulated.

Snowfall

March through October are months without snowfall in Cedar Hill.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 7:03 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:13 pm CDT.

Sunshine

In Cedar Hill, the average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

How hot is it in Cedar Hill in September?

An average high-temperature, in September, in Cedar Hill, is 87.8°F (31°C) and the average low-temperature is 70.2°F (21.2°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 96.8°F (36°C).

What is the average humidity in September in Cedar Hill?

In Cedar Hill, the average relative humidity in September is 64%.

How much does it rain in Cedar Hill in September?

In September, in Cedar Hill, the rain falls for 14.3 days. Throughout September, 1.5" (38mm) of precipitation is accumulated.

When it does not snow in Cedar Hill?

March through October are months without snowfall.

How many hours of daylight does Cedar Hill have in September?

In Cedar Hill, Texas, the average day length in September is 12h and 22min.

When is the sunrise / sunset in September in Cedar Hill?

On the first day of September in Cedar Hill, Texas, sunrise is at 7:03 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:13 pm CDT.

How many hours of sunshine does Cedar Hill have in September?

The average sunshine duration in September in Cedar Hill is 8.5h.

What is the UV index intensity in September in Cedar Hill?

In September, the average daily maximum UV index in Cedar Hill, Texas, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Cedar Hill, TX

Average temperature in September - Cedar Hill, TX
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in September: 70.2°F

The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (39°F).

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Average pressure in September
Cedar Hill, TX

Average pressure in September - Cedar Hill, 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 (29.91"Hg).

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Average wind speed in September
Cedar Hill, TX

Average wind speed in September - Cedar Hill, TX
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

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Average humidity in September
Cedar Hill, TX

Average humidity in September - Cedar Hill, TX
  • Average humidity in September: 64%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in September
Cedar Hill, TX

Average rainfall in September - Cedar Hill, TX
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (0.83").

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Average rainfall days in September
Cedar Hill, TX

Average rainfall days in September - Cedar Hill, TX
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is September (14.3 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in September
Cedar Hill, TX

Average snowfall in September - Cedar Hill, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

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Average snowfall days in September
Cedar Hill, TX

Average snowfall days in September - Cedar Hill, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.3 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
Cedar Hill, TX

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Cedar Hill, TX

Average sunshine days in September - Cedar Hill, TX
  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is September (13.6 days).

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Average UV index in September
Cedar Hill, TX

Average UV index in September - Cedar Hill, TX
  • Average UV index in September: 6

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

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Average cloud cover in September
Cedar Hill, TX

Average cloud cover in September - Cedar Hill, TX
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Cedar Hill, TX

Average visibility in September - Cedar Hill, 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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Cedar Hill, Texas, USA

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