September weather forecast
Lucy, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Lucy, Louisiana, with temperature in the range of an average low of 72.5°F (22.5°C) and an average high of 86.9°F (30.5°C).

Temperature

At the onset of September, Lucy records an average high-temperature of a still hot 86.9°F (30.5°C), showing little deviation from the preceding month. Lucy experiences a consistent average temperature of 72.5°F (22.5°C) throughout the nights in September.

Heat index

The average heat index in September is evaluated at a fiery hot 102.2°F (39°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

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

Rainfall

In Lucy, in September, during 18.3 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, there are 174 rainfall days, and 34.76" (883mm) of precipitation is accumulated.

Snowfall

In Lucy, snow does not fall in February through December.

Daylight

The average length of the day in September in Lucy 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 September, the average sunshine is 10.1h.

UV index

In Lucy, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

How hot does it get in September?

During September, Lucy experiences an average high-temperature of 86.9°F (30.5°C) and a low-temperature of 72.5°F (22.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in September is evaluated at 102.2°F (39°C).

What is the average humidity in September?

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

How many days does it rain in September?

In September, the rain falls for 18.3 days. Throughout September, 2.76" (70mm) of precipitation is accumulated.

When it does not snow?

In Lucy, snow does not fall in February through December.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, 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 long on average sun shines in September in Lucy?

The average sunshine duration in September is 10.1h.

How high is the UV index in September?

In Lucy, Louisiana, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Lucy, LA

Average temperature in September - Lucy, LA
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in September: 72.5°F

The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (46°F).

Average pressure in September
Lucy, LA

Average pressure in September - Lucy, LA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

Average wind speed in September
Lucy, LA

Average wind speed in September - Lucy, LA
  • Average wind speed in September: 5.7mph

The windiest months (with the highest average wind speed) are January, February and April (8mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

Average humidity in September
Lucy, LA

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

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Lucy, LA

Average rainfall in September - Lucy, LA
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is July (5.55").
The driest month (with the least rainfall) is November (1.5").

Average rainfall days in September
Lucy, LA

Average rainfall days in September - Lucy, LA
  • Average rainfall days in September: 18.3 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is November (7.7 days).

Average snowfall in September
Lucy, LA

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

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Lucy, LA

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

The month with the highest number of snowfall days is January (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
Lucy, LA

Average daylight in September / Average sunshine in September - Lucy, 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: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Lucy, LA

Average sunshine days in September - Lucy, LA
  • Average sunshine days in September: 8.7 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (6 days).

Average UV index in September
Lucy, LA

Average UV index in September - Lucy, LA
  • 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).

Average cloud cover in September
Lucy, LA

Average cloud cover in September - Lucy, LA
  • Average cloud cover in September: 27

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 25).

Average visibility in September
Lucy, LA

Average visibility in September - Lucy, LA
  • 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).

Lucy, Louisiana, USA

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