September weather forecastSlate Spring, MS
September
Weather in September
The first month of the autumn, September, is still a warm month in Slate Spring, Mississippi, with an average temperature fluctuating between 85.6°F (29.8°C) and 65.3°F (18.5°C).Temperature
September's arrival brings an average high-temperature of a warm 85.6°F (29.8°C), demonstrating subtle variation from the preceding month. An average nighttime temperature of 65.3°F (18.5°C) is witnessed throughout September.Heat index
The heat index for September is estimated at a sweltering 95°F (35°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance 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.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
In September, the average relative humidity is 72%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 161.2 rainfall days, and 32.99" (838mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Slate Spring, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:31 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:42 pm CDT.
Sunshine
In Slate Spring, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Slate Spring, MS
- Average high temperature in September: 85.6°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Slate Spring, MS
- Average pressure in September: 30"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
Slate Spring, MS
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Slate Spring, MS
- Average humidity in September: 72%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Slate Spring, MS
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is November (1.73").
Average rainfall days in September
Slate Spring, MS
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Slate Spring, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Slate Spring, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Slate Spring, MS
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Slate Spring, MS
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in September
Slate Spring, 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, February, November and December (UV index 3).
Average cloud cover in September
Slate Spring, MS
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in September
Slate Spring, 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).
