September weather forecast
Diamond, LA

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Weather in September

September, the first month of the autumn in Diamond, is still a warm month, with an average temperature ranging between max 85.1°F (29.5°C) and min 77.7°F (25.4°C).

Temperature

Diamond's September reports an average high-temperature of a warm 85.1°F (29.5°C), exhibiting a minor difference from August. Nights during September maintain a steady temperature, averaging at a still moderately hot 77.7°F (25.4°C).

Heat index

The heat index in September is calculated to be a torrid 95°F (35°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. 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 in Diamond, Louisiana, is 74%.

Rainfall

In Diamond, during September, the rain falls for 14.7 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Diamond, Louisiana, there are 137.2 rainfall days, and 19.92" (506mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Diamond.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:45 pm CDT.

Sunshine

In September, the average sunshine is 10.2h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

How hot is September in Diamond?

In September, the average high-temperature and low-temperature in Diamond, Louisiana, are 85.1°F (29.5°C) and 77.7°F (25.4°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 95°F (35°C).

What is the average humidity in September in Diamond?

The average relative humidity in September in Diamond, Louisiana, is 74%.

How many days does it rain in September in Diamond?

In Diamond, in September, during 14.7 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow in Diamond?

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

What is the average length of the day in September in Diamond?

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

What time are sunrise and sunset in September in Diamond?

In September, on the first day of the month, sunrise is at 6:36 am and sunset at 7:20 pm. On the last day of the month, in Diamond, sunrise is at 6:52 am and sunset at 6:45 pm CDT.

How long on average sun shines in September in Diamond?

The average sunshine duration in September in Diamond, Louisiana, is 10.2h.

What are the months with the highest UV index in Diamond?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in September in Diamond?

In Diamond, Louisiana, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
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
Diamond, LA

Average temperature in September - Diamond, LA
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is January (61.2°F).

  • Average low temperature in September: 77.7°F

The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is January (51.6°F).

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Average pressure in September
Diamond, LA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

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Average wind speed in September
Diamond, LA

Average wind speed in September - Diamond, LA
  • Average wind speed in September: 8.2mph

The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in September
Diamond, LA

Average humidity in September - Diamond, LA
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Diamond, LA

Average rainfall in September - Diamond, LA
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is April (0.79").

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Average rainfall days in September
Diamond, LA

Average rainfall days in September - Diamond, LA
  • Average rainfall days in September: 14.7 days

The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is November (7 days).

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Average snowfall days in September
Diamond, LA

Average snowfall days in September - Diamond, 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).

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

Average daylight in September / Average sunshine in September - Diamond, 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: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in September
Diamond, LA

Average sunshine days in September - Diamond, LA
  • Average sunshine days in September: 11 days

The months with the most sunshine days are April and November (20.9 days).
The month with the least sunshine days is August (7.3 days).

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Average UV index in September
Diamond, LA

Average UV index in September - Diamond, LA
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

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Average cloud cover in September
Diamond, LA

Average cloud cover in September - Diamond, LA
  • Average cloud cover in September: 24

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is May (Cloud cover 23).

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Average visibility in September
Diamond, LA

Average visibility in September - Diamond, 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).

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Diamond, Louisiana, USA

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