September weather forecast
Utopia, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Utopia, Texas, with an average temperature varying between 89.2°F (31.8°C) and 70.9°F (21.6°C).

Temperature

September's onset introduces a mild reduction in the average high-temperature, from a very hot 96.6°F (35.9°C) in August to a tropical 89.2°F (31.8°C). An average nighttime temperature of 70.9°F (21.6°C) is recorded during September.

Heat index

For September, the heat index is estimated at a very hot 100.4°F (38°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of 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 particularly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

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

Rainfall

In Utopia, in September, during 15.2 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Utopia, during the entire year, the rain falls for 130.9 days and collects up to 17.72" (450mm) of precipitation.

Snowfall

In Utopia, snow does not fall in March through December.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:15 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:24 pm CDT.

Sunshine

In Utopia, Texas, the average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

During September, Utopia experiences an average high-temperature of 89.2°F (31.8°C) and a low-temperature of 70.9°F (21.6°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 100.4°F (38°C).

What is the average humidity in September?

The average relative humidity in September is 64%.

How much does it rain in September?

In Utopia, in September, during 15.2 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When it does not snow?

In Utopia, snow does not fall in March through December.

What is the average length of the day in September?

In September, the average day length is 12h and 20min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:15 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:24 pm CDT.

How many hours of sunshine does Utopia have in September?

The average sunshine duration in September is 8.4h.

What is the UV index intensity in September?

In Utopia, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's 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
Utopia, TX

Average temperature in September - Utopia, TX
  • Average high temperature in September: 89.2°F

The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (62.1°F).

  • Average low temperature in September: 70.9°F

The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (43.9°F).

Average pressure in September
Utopia, TX

Average pressure in September - Utopia, TX
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Utopia, TX

Average wind speed in September - Utopia, TX
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is May (9.8mph).
The calmest months (with the lowest average wind speed) are September and December (7.1mph).

Average humidity in September
Utopia, TX

Average humidity in September - Utopia, TX
  • Average humidity in September: 64%

The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September
Utopia, TX

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

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is November (0.79").

Average rainfall days in September
Utopia, TX

Average rainfall days in September - Utopia, TX
  • Average rainfall days in September: 15.2 days

The months with the highest number of rainy days are May and September (15.2 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in September
Utopia, TX

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

The month with the highest snowfall is January (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Utopia, TX

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

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

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

Average daylight in September / Average sunshine in September - Utopia, 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 July (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 5h and 36min).

Average sunshine days in September
Utopia, TX

Average sunshine days in September - Utopia, TX
  • Average sunshine days in September: 13 days

The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is September (13 days).

Average UV index in September
Utopia, TX

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

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

Average cloud cover in September
Utopia, TX

Average cloud cover in September - Utopia, TX
  • Average cloud cover in September: 33

The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in September
Utopia, TX

Average visibility in September - Utopia, 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).

Utopia, Texas, USA

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