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
At the start of September, Waltersville's average high-temperature reaches a still tropical 87.8°F (31°C), subtly different from the preceding month. During the nights in September, Waltersville experiences a consistent average temperature of 67.6°F (19.8°C).Heat index
For September, the heat index is calculated to be a torrid 102.2°F (39°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.The standards for the heat index are set for locations in shade and under light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
In September, the average relative humidity is 73%.Rainfall
In Waltersville, Mississippi, in September, it is raining for 15 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, there are 169.7 rainfall days, and 38.82" (986mm) of precipitation is accumulated.Snowfall
In Waltersville, 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 the month, sunrise is at 6:38 am and sunset at 7:27 pm. On the last day of September, in Waltersville, sunrise is at 6:57 am and sunset at 6:49 pm CDT.
Sunshine
The average sunshine in September is 9.8h.UV index
In Waltersville, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 in September translates into these instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
How hot does it get in Waltersville in September?
What is the average humidity in September in Waltersville?
How many days does it rain in September in Waltersville?
When it does not snow in Waltersville?
How many hours of daylight does Waltersville have in September?
When are sunrise and sunset in September in Waltersville?
How many hours of sunshine does Waltersville have in September?
What is the UV index intensity in September in Waltersville?
Average temperature in September
Waltersville, MS
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in September: 67.6°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).
Average pressure in September
Waltersville, 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
Waltersville, MS
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Waltersville, MS
- Average humidity in September: 73%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Waltersville, MS
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in September
Waltersville, MS
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is October (8.9 days).
Average snowfall in September
Waltersville, 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
Waltersville, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1 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
Waltersville, 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 5min
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: 5h and 0min).
Average sunshine days in September
Waltersville, MS
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (9.9 days).
Average UV index in September
Waltersville, 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
Waltersville, MS
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Waltersville, 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).
Waltersville, Mississippi, USA
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