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 start of September sees the average high-temperature at a still hot 87.4°F (30.8°C), showing little difference from August's 91.4°F (33°C). An average temperature of 68°F (20°C) is recorded during the nights in September.Heat index
During September, the heat index is calculated to be a very hot 102.2°F (39°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Consider that heat index readings are for situations in the shade and light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling 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
The average relative humidity in September in Sumrall is 76%.Rainfall
In September, in Sumrall, Mississippi, the rain falls for 16 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. Throughout the year, in Sumrall, there are 159.8 rainfall days, and 22.56" (573mm) of precipitation is accumulated.Snowfall
In Sumrall, snow does not fall in April through November.Daylight
In Sumrall, the average length of the day in September is 12h and 21min.On the first day of September in Sumrall, sunrise is at 6:34 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:44 pm CDT.
Sunshine
The average sunshine in September in Sumrall, Mississippi, is 9.2h.UV index
In September, the average daily maximum UV index in Sumrall, Mississippi, is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Sumrall?
What is the average humidity in September in Sumrall?
How many days does it rain in September in Sumrall?
When it does not snow in Sumrall?
How many hours of daylight does Sumrall have in September?
When is the sunrise / sunset in September in Sumrall?
How long on average sun shines in September in Sumrall?
What is the UV index reading in September in Sumrall?
Average temperature in September
Sumrall, MS
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is August (72.5°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in September
Sumrall, 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
Sumrall, MS
- Average wind speed in September: 4.8mph
The windiest months (with the highest average wind speed) are January, February and April (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Sumrall, MS
- Average humidity in September: 76%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Sumrall, MS
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in September
Sumrall, MS
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in September
Sumrall, MS
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Sumrall, MS
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (0.4 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
Sumrall, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Sumrall, MS
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Sumrall, MS
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Sumrall, MS
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Sumrall, MS
- Average visibility in September: 5mi
The months with the highest visibility are January, October and November (6mi).
The months with the lowest visibility are February, March, April, May, June, July, August, September and December (5mi).
Sumrall, Mississippi, USA
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