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 onset of September marks an average high-temperature of a still hot 86.2°F (30.1°C), hardly differing from August's 91°F (32.8°C). In September, Sallis experiences an average nighttime temperature of 66.7°F (19.3°C).Heat index
In September, the average heat index is appraised at a torrid 96.8°F (36°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In Sallis, the average relative humidity in September is 72%.Rainfall
In September, the rain falls for 13.2 days. Throughout September, 2.72" (69mm) of precipitation is accumulated. In Sallis, Mississippi, during the entire year, the rain falls for 168.2 days and collects up to 41.06" (1043mm) of precipitation.Snowfall
In Sallis, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Sallis, Mississippi, sunrise is at 6:34 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:44 pm CDT.
Sunshine
The average sunshine in September is 9.7h.UV index
In Sallis, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
Is it hot in Sallis during September?
What is the average humidity in September in Sallis?
How much does it rain in Sallis in September?
When it does not snow in Sallis?
How many hours of daylight does Sallis have in September?
When is the sunrise / sunset in September in Sallis?
How long on average sun shines in September in Sallis?
What is the UV index reading in September in Sallis?
Average temperature in September
Sallis, MS
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (52.3°F).
- Average low temperature in September: 66.7°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in September
Sallis, MS
- Average pressure in September: 29.99"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
Sallis, MS
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Sallis, MS
- Average humidity in September: 72%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Sallis, MS
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is November (2.36").
Average rainfall days in September
Sallis, MS
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Sallis, MS
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Sallis, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sallis, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Sallis, MS
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Sallis, MS
- Average UV index in September: 5
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
Sallis, MS
- Average cloud cover in September: 28
The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are September and October (Cloud cover 28).
Average visibility in September
Sallis, MS
- 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).
Sallis, Mississippi, USA
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