Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September is marked with an average high-temperature of a still tropical 87.1°F (30.6°C), showing an insignificant shift from August's 90.5°F (32.5°C). During the month of September, the nighttime temperature falls to an average of 68.4°F (20.2°C).Heat index
In September, the heat index is evaluated at a sweltering 102.2°F (39°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In Smithburg, the average relative humidity in September is 77%.Rainfall
In Smithburg, during September, the rain falls for 16.9 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Smithburg, during the entire year, the rain falls for 174 days and collects up to 34.29" (871mm) of precipitation.Snowfall
In Smithburg, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:37 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:47 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. 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. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Smithburg have in September?
What time are sunrise and sunset in September in Smithburg?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Smithburg, MS
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in September: 68.4°F
The months with the highest average low temperature are July and August (72.7°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in September
Smithburg, MS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Smithburg, MS
- Average wind speed in September: 4.8mph
The windiest months (with the highest average wind speed) are February and April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Smithburg, MS
- Average humidity in September: 77%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Smithburg, MS
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in September
Smithburg, MS
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (9 days).
Average snowfall in September
Smithburg, MS
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Smithburg, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Smithburg, MS
- 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: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Smithburg, MS
- Average sunshine days in September: 11.2 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.5 days).
Average UV index in September
Smithburg, MS
- 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 and December (UV index 3).
Average cloud cover in September
Smithburg, MS
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Smithburg, MS
- Average visibility in September: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Smithburg, Mississippi, USA
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