September weather forecast
Dayton, TX

Share

Weather in September

The first month of the autumn, September, is still a tropical month in Dayton, Texas, with temperature in the range of an average low of 70.9°F (21.6°C) and an average high of 88.3°F (31.3°C).

Temperature

Dayton's September average high-temperature settles at a still hot 88.3°F (31.3°C), showing a near match with the preceding month. During the nights in September, Dayton experiences a consistent average temperature of 70.9°F (21.6°C).

Heat index

The heat index value during September is estimated at a blistering 105.8°F (41°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Dayton, the average relative humidity in September is 78%.

Rainfall

In Dayton, during September, the rain falls for 19.9 days and regularly aggregates up to 4.49" (114mm) of precipitation. In Dayton, during the entire year, the rain falls for 177.5 days and collects up to 38.46" (977mm) of precipitation.

Snowfall

In Dayton, Texas, snow does not fall in February through November.

Daylight

In Dayton, the average length of the day in September is 12h and 20min.
On the first day of September in Dayton, sunrise is at 6:56 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:05 pm CDT.

Sunshine

In September, the average sunshine in Dayton, Texas, is 8.8h.

UV index

In Dayton, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
[Resources]

Frequently asked questions

How hot does it get in Dayton in September?

An average high-temperature, in September, in Dayton, is 88.3°F (31.3°C) and the average low-temperature is 70.9°F (21.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 105.8°F (41°C).

What is the average humidity in September in Dayton?

In Dayton, the average relative humidity in September is 78%.

How much does it rain in Dayton in September?

In Dayton, in September, during 19.9 rainfall days, 4.49" (114mm) of precipitation is typically accumulated.

When it does not snow in Dayton?

In Dayton, Texas, snow does not fall in February through November.

How many hours of daylight does Dayton have in September?

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

When are sunrise and sunset in September in Dayton?

In September, on the first day of the month, sunrise is at 6:56 am and sunset at 7:41 pm. On the last day of the month, in Dayton, sunrise is at 7:12 am and sunset at 7:05 pm CDT.

How many hours of sunshine does Dayton have in September?

The average sunshine duration in September is 8.8h.

What is the UV index reading in September in Dayton?

In Dayton, Texas, the average daily maximum UV index in September 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
Dayton, TX

Average temperature in September - Dayton, TX
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is August (93.7°F).
The month with the lowest average high temperature is January (59.9°F).

  • Average low temperature in September: 70.9°F

The month with the highest average low temperature is July (75.2°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

[Resources]

Average pressure in September
Dayton, TX

Average pressure in September - Dayton, TX
  • Average pressure in September: 29.96"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).

[Resources]

Average wind speed in September
Dayton, TX

Average wind speed in September - Dayton, TX
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is September (5.1mph).

[Resources]

Average humidity in September
Dayton, TX

Average humidity in September - Dayton, TX
  • Average humidity in September: 78%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (73%).

[Resources]

Average rainfall in September
Dayton, TX

Average rainfall in September - Dayton, TX
  • Average rainfall in September: 4.49"

The wettest month (with the highest rainfall) is May (5.24").
The driest month (with the least rainfall) is February (1.77").

[Resources]

Average rainfall days in September
Dayton, TX

Average rainfall days in September - Dayton, TX
  • Average rainfall days in September: 19.9 days

The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is November (10.3 days).

[Resources]

Average snowfall in September
Dayton, TX

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

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

[Resources]

Average snowfall days in September
Dayton, TX

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

The months with the highest number of snowfall days are January and December (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

[Resources]

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

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

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

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

[Resources]

Average sunshine days in September
Dayton, TX

Average sunshine days in September - Dayton, TX
  • Average sunshine days in September: 8.3 days

The month with the most sunshine days is January (18.8 days).
The months with the least sunshine days are August and September (8.3 days).

[Resources]

Average UV index in September
Dayton, TX

Average UV index in September - Dayton, 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 3).

[Resources]

Average cloud cover in September
Dayton, TX

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

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are August and October (Cloud cover 31).

[Resources]

Average visibility in September
Dayton, TX

Average visibility in September - Dayton, TX
  • Average visibility in September: 5mi

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

[Resources]

Dayton, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location