September weather forecast
Rienzi, MS

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Weather in September

September, the first month of the autumn in Rienzi, is still a warm month, with temperature in the range of an average high of 84.7°F (29.3°C) and an average low of 64.6°F (18.1°C).

Temperature

September's weather records an average high-temperature of a moderately hot 84.7°F (29.3°C), showing little deviation from August. Rienzi's temperature tends to fall to an average low of 64.6°F (18.1°C) during the nights of September.

Heat index

September's average heat index is evaluated at a hot 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In September, the average relative humidity in Rienzi is 73%.

Rainfall

In September, in Rienzi, Mississippi, the rain falls for 12.7 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. In Rienzi, during the entire year, the rain falls for 158.6 days and collects up to 32.95" (837mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Rienzi, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:39 pm CDT.

Sunshine

The average sunshine in September in Rienzi is 9.2h.

UV index

The average daily maximum UV index in September in Rienzi, Mississippi, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Rienzi in September?

In September, in Rienzi, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in September is evaluated at 93.2°F (34°C).

What is the average humidity in September in Rienzi?

In September, the average relative humidity is 73%.

How much does it rain in Rienzi in September?

In Rienzi, during September, the rain falls for 12.7 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow in Rienzi?

In Rienzi, Mississippi, snow does not fall in April through October.

How many hours of daylight does Rienzi have in September?

In Rienzi, the average day length in September is 12h and 23min.

When are sunrise and sunset in September in Rienzi?

On the first day of September in Rienzi, Mississippi, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:39 pm CDT.

How many hours of sunshine does Rienzi have in September?

In Rienzi, the average sunshine duration in September is 9.2h.

What is the UV index intensity in September in Rienzi?

The average daily maximum UV index in September in Rienzi is 5. A UV Index estimate of 3 to 5 represents a moderate 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
Rienzi, MS

Average temperature in September - Rienzi, MS
  • Average high temperature in September: 84.7°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (48.4°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in September
Rienzi, MS

Average pressure in September - Rienzi, MS
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Rienzi, MS

Average wind speed in September - Rienzi, MS
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in September
Rienzi, MS

Average humidity in September - Rienzi, MS
  • Average humidity in September: 73%

The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Rienzi, MS

Average rainfall in September - Rienzi, MS
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is November (1.85").

Average rainfall days in September
Rienzi, MS

Average rainfall days in September - Rienzi, MS
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in September
Rienzi, MS

Average snowfall in September - Rienzi, MS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Rienzi, MS

Average snowfall days in September - Rienzi, MS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Rienzi, MS

Average daylight in September / Average sunshine in September - Rienzi, MS
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Rienzi, MS

Average sunshine days in September - Rienzi, MS
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in September
Rienzi, MS

Average UV index in September - Rienzi, MS
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Rienzi, MS

Average cloud cover in September - Rienzi, MS
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in September
Rienzi, MS

Average visibility in September - Rienzi, MS
  • Average visibility in September: 6mi

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

Rienzi, Mississippi, USA

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