September weather forecast
Mimms Crossroads, SC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Mimms Crossroads, South Carolina, with an average temperature varying between 66.9°F (19.4°C) and 83.8°F (28.8°C).

Temperature

The transition into September is marked with an average high-temperature of a moderately hot 83.8°F (28.8°C), showing an insignificant shift from August's 88.5°F (31.4°C). Throughout the nights in September, an average low-temperature of 66.9°F (19.4°C) is noted.

Heat index

The heat index value during September is estimated at a hot 93.2°F (34°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 essentially critical for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The months with the highest humidity are May, August and September, with an average relative humidity of 78%.

Rainfall

In Mimms Crossroads, in September, during 15.8 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 170.2 rainfall days, and 34.06" (865mm) of precipitation is accumulated.

Snowfall

In Mimms Crossroads, snow does not fall in March through December.

Daylight

In Mimms Crossroads, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:04 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In Mimms Crossroads, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 6 in September transforms into this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

How hot is it in September?

In September, the average high-temperature and low-temperature are 83.8°F (28.8°C) and 66.9°F (19.4°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 93.2°F (34°C).

What are the most humid months?

The months with the highest humidity are May, August and September, with an average relative humidity of 78%.

What is the average humidity in September?

In September, the average relative humidity is 78%.

How many days does it rain in September?

In Mimms Crossroads, during September, the rain falls for 15.8 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow?

In Mimms Crossroads, snow does not fall in March through December.

How many hours of daylight does Mimms Crossroads have in September?

The average day length in September is 12h and 22min.

When are sunrise and sunset in September in Mimms Crossroads?

On the first day of September, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:04 pm EDT.

How many hours of sunshine does Mimms Crossroads have in September?

The average sunshine duration in September is 9.1h.

What is the UV index intensity in September?

In Mimms Crossroads, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to the Sun's 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
Mimms Crossroads, SC

Average temperature in September - Mimms Crossroads, SC
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (53.4°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).

Average pressure in September
Mimms Crossroads, SC

Average pressure in September - Mimms Crossroads, SC
  • Average pressure in September: 30.01"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Mimms Crossroads, SC

Average wind speed in September - Mimms Crossroads, SC
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in September
Mimms Crossroads, SC

Average humidity in September - Mimms Crossroads, SC
  • Average humidity in September: 78%

The months with the highest relative humidity are May, August and September (78%).
The months with the lowest relative humidity are January and November (73%).

Average rainfall in September
Mimms Crossroads, SC

Average rainfall in September - Mimms Crossroads, SC
  • Average rainfall in September: 3.07"

The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in September
Mimms Crossroads, SC

Average rainfall days in September - Mimms Crossroads, SC
  • Average rainfall days in September: 15.8 days

The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in September
Mimms Crossroads, SC

Average snowfall in September - Mimms Crossroads, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Mimms Crossroads, SC

Average snowfall days in September - Mimms Crossroads, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Mimms Crossroads, SC

Average daylight in September / Average sunshine in September - Mimms Crossroads, SC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
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 July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Mimms Crossroads, SC

Average sunshine days in September - Mimms Crossroads, SC
  • Average sunshine days in September: 12.3 days

The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is July (6.5 days).

Average UV index in September
Mimms Crossroads, SC

Average UV index in September - Mimms Crossroads, SC
  • Average UV index in September: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September
Mimms Crossroads, SC

Average cloud cover in September - Mimms Crossroads, SC
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Mimms Crossroads, SC

Average visibility in September - Mimms Crossroads, SC
  • 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).

Mimms Crossroads, South Carolina, USA

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