September weather forecast
Simms, TX

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Weather in September

September, the first month of the autumn in Simms, is still a hot month, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 88.2°F (31.2°C).

Temperature

With the beginning of September, the average high-temperature shows a small decrease, transitioning from 94.3°F (34.6°C) in August to a still tropical 88.2°F (31.2°C). Simms experiences an average low-temperature of 66.7°F (19.3°C) in the month of September.

Heat index

The heat index for September is appraised at a torrid 100.4°F (38°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In Simms, the average relative humidity in September is 69%.

Rainfall

September is the month with the least rainfall in Simms, Texas. Rain falls for 11.6 days and accumulates 2.36" (60mm) of precipitation.

Snowfall

In Simms, snow does not fall in April through November.

Daylight

In Simms, the average length of the day in September is 12h and 22min.
On the first day of September in Simms, Texas, sunrise is at 6:52 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:03 pm CDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 in September translates into these instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

How hot is it in Simms in September?

During September, Simms experiences an average high-temperature of 88.2°F (31.2°C) and a low-temperature of 66.7°F (19.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 100.4°F (38°C).

What is the average humidity in September in Simms?

In September, the average relative humidity in Simms is 69%.

What is the driest month in Simms?

The month with the least rainfall in Simms is September, when the rain falls for 11.6 days and typically collects 2.36" (60mm) of precipitation.

How many days does it rain in September in Simms?

In Simms, in September, during 11.6 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow in Simms?

April through November are months without snowfall in Simms, Texas.

What is the average length of the day in September in Simms?

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

When is the sunrise / sunset in September in Simms?

On the first day of September in Simms, Texas, sunrise is at 6:52 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:03 pm CDT.

How many hours of sunshine does Simms have in September?

The average sunshine duration in September in Simms, Texas, is 9.2h.

How high is the UV index in September in Simms?

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

Average temperature in September - Simms, TX
  • Average high temperature in September: 88.2°F

The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in September: 66.7°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

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Average pressure in September
Simms, TX

Average pressure in September - Simms, TX
  • Average pressure in September: 29.98"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
Simms, TX

Average wind speed in September - Simms, TX
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Simms, TX

Average humidity in September - Simms, TX
  • Average humidity in September: 69%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in September
Simms, TX

Average rainfall in September - Simms, TX
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is September (2.36").

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Average rainfall days in September
Simms, TX

Average rainfall days in September - Simms, TX
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is January (10.3 days).

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Average snowfall in September
Simms, TX

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

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Simms, TX

Average snowfall days in September - Simms, TX
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

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

Average daylight in September / Average sunshine in September - Simms, 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 0min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Simms, TX

Average sunshine days in September - Simms, TX
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is January (18.5 days).
The month with the least sunshine days is February (13.3 days).

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Average UV index in September
Simms, TX

Average UV index in September - Simms, 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 2).

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Average cloud cover in September
Simms, TX

Average cloud cover in September - Simms, TX
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Simms, TX

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

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

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Simms, Texas, USA

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