September weather forecast
Lockport, LA

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Weather in September

September, the first month of the autumn in Lockport, is still a tropical month, with an average temperature ranging between max 86.7°F (30.4°C) and min 73.6°F (23.1°C).

Temperature

Lockport sees the arrival of September with an average high-temperature of a still tropical 86.7°F (30.4°C), indicating a subtle variation from August. In September, Lockport's temperature tends to fall to an average low of 73.6°F (23.1°C) during the night.

Heat index

The heat index value during September is estimated at a torrid 100.4°F (38°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Lockport, in September, it is raining for 16 days, with typically 1.42" (36mm) of accumulated precipitation. In Lockport, during the entire year, the rain falls for 145.4 days and collects up to 19.13" (486mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Lockport is 12h and 20min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:48 pm CDT.

Sunshine

The average sunshine in September is 10.1h.

UV index

In Lockport, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 during September translates into the following guidance:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The high-temperature, in September, in Lockport, records 86.7°F (30.4°C), while the low-temperature is 73.6°F (23.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 100.4°F (38°C).

What is the average humidity in September?

In Lockport, the average relative humidity in September is 77%.

How much does it rain in September?

In Lockport, in September, it is raining for 16 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow?

February through December are months without snowfall in Lockport.

How many hours of daylight does Lockport have in September?

In Lockport, the average day length in September 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 7:23 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 Lockport have in September?

The average sunshine duration in September is 10.1h.

What is the UV index intensity in September?

In Lockport, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Lockport, LA

Average temperature in September - Lockport, LA
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (61.3°F).

  • Average low temperature in September: 73.6°F

The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).

Average pressure in September
Lockport, LA

Average pressure in September - Lockport, 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
Lockport, LA

Average wind speed in September - Lockport, LA
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Lockport, LA

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

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Lockport, LA

Average rainfall in September - Lockport, LA
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is March (0.75").

Average rainfall days in September
Lockport, LA

Average rainfall days in September - Lockport, LA
  • Average rainfall days in September: 16 days

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (6.4 days).

Average snowfall days in September
Lockport, LA

Average snowfall days in September - Lockport, 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, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Lockport, LA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Lockport, LA

Average sunshine days in September - Lockport, LA
  • Average sunshine days in September: 10.8 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (6.8 days).

Average UV index in September
Lockport, LA

Average UV index in September - Lockport, LA
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in September
Lockport, LA

Average cloud cover in September - Lockport, LA
  • Average cloud cover in September: 26

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in September
Lockport, LA

Average visibility in September - Lockport, 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).

Lockport, Louisiana, USA

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