September weather forecast
Junction, TX

Weather in September

The first month of the autumn, September, is still a tropical month in Junction, Texas, with an average temperature fluctuating between 86.5°F (30.3°C) and 68.2°F (20.1°C).

Temperature

In Junction, the average high-temperature in September marginally drops from a hot 94.3°F (34.6°C) in August to a still tropical 86.5°F (30.3°C). The average low-temperature, in Junction, is 68.2°F (20.1°C).

Heat index

In September, the average heat index is calculated to be a tropical 93°F (33.9°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'real feel', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, clothing, metabolic differences, and differences in body mass, height, and shape affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity is 62%.

Rainfall

In Junction, during 12.4 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, in Junction, Texas, there are 100.7 rainfall days, and 14.65" (372mm) of precipitation is accumulated.

Snowfall

March through October are months without snowfall.

Daylight

The average length of the day in September in Junction is 12h and 20min.
On the first day of the month, sunrise is at 7:15 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:25 pm CDT.

Sunshine

The average sunshine in September in Junction is 8.7h.

UV index

In Junction, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Junction?

In Junction, in September, the average high-temperature is 86.5°F (30.3°C), and the average low-temperature is 68.2°F (20.1°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in September is calculated to be 93°F (33.9°C).

What is the average humidity in September in Junction?

In September, the average relative humidity in Junction, Texas, is 62%.

How many days does it rain in September in Junction?

In Junction, Texas, in September, during 12.4 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When it does not snow in Junction?

March through October are months without snowfall.

How many hours of daylight does Junction have in September?

The average day length in September is 12h and 20min.

When are sunrise and sunset in September in Junction?

In September, on the first day of the month, sunrise is at 7:15 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:25 pm CDT.

How long on average sun shines in September in Junction?

In Junction, the average sunshine duration in September is 8.7h.

What is the UV index reading in September in Junction?

In Junction, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Junction, TX

Average temperature in September - Junction, TX
  • Average high temperature in September: 86.5°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 (59.4°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is August (73.4°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

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Average pressure in September
Junction, TX

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.89"Hg).

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Average wind speed in September
Junction, TX

Average wind speed in September - Junction, TX
  • Average wind speed in September: 8.8mph

The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is September (8.8mph).

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Average humidity in September
Junction, TX

Average humidity in September - Junction, TX
  • Average humidity in September: 62%

The months with the highest relative humidity are May and November (64%).
The month with the lowest relative humidity is August (52%).

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Average rainfall in September
Junction, TX

Average rainfall in September - Junction, TX
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is November (0.55").

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Average rainfall days in September
Junction, TX

Average rainfall days in September - Junction, TX
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is September (12.4 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in September
Junction, TX

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

The month with the highest snowfall is December (0.28").
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
Junction, TX

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

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Junction, TX
  • Average daylight in September: 12h and 20min

The month with the longest days is June (Average daylight: 14h and 5min).
The month with the shortest days is December (Average daylight: 10h and 13min).

  • Average sunshine in September: 8h and 42min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The months with the least sunshine are November and December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Junction, TX

Average sunshine days in September - Junction, TX
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is September (15.5 days).

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Average UV index in September
Junction, TX

Average UV index in September - Junction, 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).

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Average cloud cover in September
Junction, TX

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

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in September
Junction, TX

Average visibility in September - Junction, 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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