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 arrival of September sees a recorded average high-temperature of a still hot 88°F (31.1°C), showing little divergence from the previous month's conditions. In the month of September, the average temperature in Picayune dips to a pleasant 71.1°F (21.7°C) during the night.Heat index
The heat index in September is appraised at a blisteringly hot 104°F (40°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Picayune, during September, the rain falls for 18 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, there are 178.7 rainfall days, and 38.62" (981mm) of precipitation is accumulated.Snowfall
January and September are months with snowfall in Picayune. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 0.5 snowfall days, and 0.35" (9mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:44 pm CDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
In Picayune, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
How hot is it in Picayune in September?
What is the average humidity in September in Picayune?
How many days does it rain in September in Picayune?
When does it start snowing in Picayune?
What is the average length of the day in September in Picayune?
When is the sunrise / sunset in September in Picayune?
How many hours of sunshine does Picayune have in September?
What is the UV index intensity in September in Picayune?
Average temperature in September
Picayune, MS
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 71.1°F
The months with the highest average low temperature are July and August (75°F).
The coldest month (with the lowest average low temperature) is January (43°F).
Average pressure in September
Picayune, 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
Picayune, MS
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Picayune, MS
- Average humidity in September: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Picayune, MS
- Average rainfall in September: 3.19"
The wettest month (with the highest rainfall) is August (5.47").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in September
Picayune, MS
- Average rainfall days in September: 18 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Picayune, MS
- Average snowfall in September: 0.04"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are February, March, April, May, June, July, August, October, November and December (0").
Average snowfall days in September
Picayune, MS
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Picayune, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days in September
Picayune, MS
- Average sunshine days in September: 9.9 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is August (6.6 days).
Average UV index in September
Picayune, MS
- Average UV index in September: 6
The months with the highest UV index are May, 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
Picayune, MS
- Average cloud cover in September: 29
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Picayune, MS
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February and December (5mi).
Picayune, Mississippi, USA
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