September weather forecast
Starns, LA

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Weather in September

September, the first month of the autumn in Starns, is still a hot month, with temperature in the range of an average high of 88.3°F (31.3°C) and an average low of 70°F (21.1°C).

Temperature

The beginning of September records an average high-temperature of a still hot 88.3°F (31.3°C), marking a negligible difference from August's 91.9°F (33.3°C). Starns anticipates an average minimum temperature of 70°F (21.1°C) in the month of September.

Heat index

The heat index value during September is estimated at a scorching 105.8°F (41°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In September, the rain falls for 17.3 days. Throughout September, 2.68" (68mm) of precipitation is accumulated. Throughout the year, in Starns, there are 176.5 rainfall days, and 36.93" (938mm) of precipitation is accumulated.

Snowfall

In Starns, snow does not fall in February through November.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:48 pm CDT.

Sunshine

In Starns, the average sunshine in September is 9.5h.

UV index

In Starns, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

In September, in Starns, the average high-temperature is 88.3°F (31.3°C), and the average low-temperature is 70°F (21.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 105.8°F (41°C).

What is the average humidity in September?

The average relative humidity in September is 78%.

How much does it rain in September?

In Starns, during September, the rain falls for 17.3 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow?

February through November are months without snowfall.

How many hours of daylight does Starns have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:39 am and sunset at 7:25 pm. On the last day of the month, in Starns, sunrise is at 6:55 am and sunset at 6:48 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.5h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
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
Starns, LA

Average temperature in September - Starns, LA
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (58.8°F).

  • Average low temperature in September: 70°F

The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).

Average pressure in September
Starns, LA

Average pressure in September - Starns, LA
  • 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 (29.96"Hg).

Average wind speed in September
Starns, LA

Average wind speed in September - Starns, LA
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are February and April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).

Average humidity in September
Starns, LA

Average humidity in September - Starns, LA
  • Average humidity in September: 78%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Starns, LA

Average rainfall in September - Starns, LA
  • Average rainfall in September: 2.68"

The wettest months (with the highest rainfall) are July and August (4.37").
The driest month (with the least rainfall) is November (1.85").

Average rainfall days in September
Starns, LA

Average rainfall days in September - Starns, LA
  • Average rainfall days in September: 17.3 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (9 days).

Average snowfall in September
Starns, LA

Average snowfall in September - Starns, LA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and December (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Starns, LA

Average snowfall days in September - Starns, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Starns, LA

Average daylight in September / Average sunshine in September - Starns, LA
  • 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: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Starns, LA

Average sunshine days in September - Starns, LA
  • Average sunshine days in September: 11.3 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (7.8 days).

Average UV index in September
Starns, LA

Average UV index in September - Starns, LA
  • 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
Starns, LA

Average cloud cover in September - Starns, LA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Starns, LA

Average visibility in September - Starns, LA
  • Average visibility in September: 5mi

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

Starns, Louisiana, USA

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