September weather forecast
Killian, LA

Share

Weather in September

September, the first month of the autumn in Killian, is still a hot month, with an average temperature varying between 88°F (31.1°C) and 70.7°F (21.5°C).

Temperature

September's commencement is accompanied by an average high-temperature of a still hot 88°F (31.1°C), diverging marginally from August's 91.4°F (33°C). Killian records an average nighttime low-temperature of 70.7°F (21.5°C) throughout September.

Heat index

The heat index value during September is computed to be a blisteringly hot 104°F (40°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Killian, in September, it is raining for 16.7 days, with typically 1.97" (50mm) of accumulated precipitation. In Killian, during the entire year, the rain falls for 163.3 days and collects up to 27.64" (702mm) of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:48 pm CDT.

Sunshine

In Killian, the average sunshine in September is 9.6h.

UV index

In Killian, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot is it in September?

The average high-temperature, in September, in Killian, is 88°F (31.1°C), while the average low-temperature is 70.7°F (21.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is computed to be 104°F (40°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How much does it rain in September?

In September, the rain falls for 16.7 days. Throughout September, 1.97" (50mm) of precipitation is accumulated.

When it does not snow?

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

How many hours of daylight does Killian have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:39 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:48 pm CDT.

How many hours of sunshine does Killian have in September?

In September, the average sunshine duration is 9.6h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 6. A UV Index reading 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Killian, LA

Average temperature in September - Killian, LA
  • Average high temperature in September: 88°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in September: 70.7°F

The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

Average pressure in September
Killian, LA

Average pressure in September - Killian, LA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in September
Killian, LA

Average wind speed in September - Killian, LA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in September
Killian, LA

Average humidity in September - Killian, LA
  • Average humidity in September: 77%

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

Average rainfall in September
Killian, LA

Average rainfall in September - Killian, LA
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is July (3.9").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in September
Killian, LA

Average rainfall days in September - Killian, LA
  • Average rainfall days in September: 16.7 days

The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.6 days).

Average snowfall in September
Killian, LA

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

The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Killian, LA

Average snowfall days in September - Killian, LA
  • 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 February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Killian, 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 4min

The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in September
Killian, LA

Average sunshine days in September - Killian, LA
  • Average sunshine days in September: 11.6 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (7.9 days).

Average UV index in September
Killian, LA

Average UV index in September - Killian, 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
Killian, LA

Average cloud cover in September - Killian, LA
  • Average cloud cover in September: 30

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in September
Killian, LA

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

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

Killian, Louisiana, USA

Weather forecast for your location

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