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
Pearl records an average high-temperature of a still hot 87.3°F (30.7°C) as September arrives, nearly mirroring the previous month's climate. September brings Pearl a consistent average low-temperature of 67.5°F (19.7°C).Heat index
The heat index for September is calculated to be a torrid 100.4°F (38°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In September, the average relative humidity in Pearl is 73%.Rainfall
In Pearl, in September, it is raining for 11.9 days, with typically 1.89" (48mm) of accumulated precipitation. In Pearl, during the entire year, the rain falls for 152.1 days and collects up to 29.72" (755mm) of precipitation.Snowfall
In Pearl, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 21min.On the first day of September in Pearl, sunrise is at 6:36 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:46 pm CDT.
Sunshine
The average sunshine in September in Pearl, Mississippi, is 9.7h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
How hot is it in Pearl in September?
What is the average humidity in September in Pearl?
How much does it rain in Pearl in September?
When it does not snow in Pearl?
What is the average length of the day in September in Pearl?
When are sunrise and sunset in September in Pearl?
How many hours of sunshine does Pearl have in September?
How high is the UV index in September in Pearl?
Average temperature in September
Pearl, MS
- Average high temperature in September: 87.3°F
The warmest months (with the highest average high temperature) are July and August (91.8°F).
The month with the lowest average high temperature is January (54.7°F).
- Average low temperature in September: 67.5°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in September
Pearl, 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
Pearl, MS
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).
Average humidity in September
Pearl, 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
Pearl, MS
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is October (1.81").
Average rainfall days in September
Pearl, MS
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Pearl, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Pearl, 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
Pearl, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Pearl, MS
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Pearl, 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
Pearl, MS
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Pearl, 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).
Pearl, Mississippi, USA
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