September weather forecast
Flower Grove, TX

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Weather in September

September, the first month of the autumn in Flower Grove, is still a warm month, with an average temperature ranging between min 66.2°F (19°C) and max 84.9°F (29.4°C).

Temperature

September marks a gentle change in average high-temperature, declining from August's hot 93.7°F (34.3°C) to a warm 84.9°F (29.4°C). Flower Grove experiences an average nighttime temperature of 66.2°F (19°C) in the month of September.

Heat index

September's average heat index is evaluated at a hot 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Facing direct sunlight may hike up the heat index by 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 impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

With an average relative humidity of 55%, September is the most humid month.

Rainfall

September is the month with the most rainfall. Rain falls for 12.6 days and accumulates 2.44" (62mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 7:22 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:32 pm CDT.

Sunshine

In September, the average sunshine is 9h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 6 in September leads to these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

During September, Flower Grove experiences an average high-temperature of 84.9°F (29.4°C) and a low-temperature of 66.2°F (19°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in September is evaluated at 87.8°F (31°C).

What is the most humid month?

With an average relative humidity of 55%, September is the most humid month.

What is the average humidity in September?

In September, the average relative humidity is 55%.

What is the rainiest month?

September is the month with the most rainfall. Rain falls for 12.6 days and accumulates 2.44" (62mm) of precipitation.

How many days does it rain in September?

In Flower Grove, in September, it is raining for 12.6 days, with typically 2.44" (62mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:22 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Flower Grove have in September?

In September, the average sunshine duration is 9h.

What is the UV index reading in September?

In Flower Grove, 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
Flower Grove, TX

Average temperature in September - Flower Grove, TX
  • Average high temperature in September: 84.9°F

The warmest months (with the highest average high temperature) are June and August (93.7°F).
The month with the lowest average high temperature is December (54.3°F).

  • Average low temperature in September: 66.2°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average pressure in September
Flower Grove, TX

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in September
Flower Grove, TX

Average wind speed in September - Flower Grove, TX
  • Average wind speed in September: 9.8mph

The windiest month (with the highest average wind speed) is April (13.4mph).
The calmest months (with the lowest average wind speed) are August and September (9.8mph).

Average humidity in September
Flower Grove, TX

Average humidity in September - Flower Grove, TX
  • Average humidity in September: 55%

The month with the highest relative humidity is September (55%).
The month with the lowest relative humidity is April (38%).

Average rainfall in September
Flower Grove, TX

Average rainfall in September - Flower Grove, TX
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is September (2.44").
The driest month (with the least rainfall) is February (0.39").

Average rainfall days in September
Flower Grove, TX

Average rainfall days in September - Flower Grove, TX
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is September (12.6 days).
The months with the least rainy days are January and November (3.8 days).

Average snowfall in September
Flower Grove, TX

Average snowfall in September - Flower Grove, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Flower Grove, TX

Average snowfall days in September - Flower Grove, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (2.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Flower Grove, TX

Average daylight in September / Average sunshine in September - Flower Grove, 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: 9h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in September
Flower Grove, TX

Average sunshine days in September - Flower Grove, TX
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is September (14.8 days).

Average UV index in September
Flower Grove, TX

Average UV index in September - Flower Grove, 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).

Average cloud cover in September
Flower Grove, TX

Average cloud cover in September - Flower Grove, TX
  • Average cloud cover in September: 24

The month with the most cloud cover is September (Cloud cover 24).
The months with the least cloud cover are June and August (Cloud cover 15).

Average visibility in September
Flower Grove, TX

Average visibility in September - Flower Grove, 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).

Flower Grove, Texas, USA

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