September weather forecastBrooklyn, MS
September
Weather in September
September, the first month of the autumn in Brooklyn, is still a tropical month, with an average temperature ranging between max 87.6°F (30.9°C) and min 69.8°F (21°C).Temperature
Brooklyn's shift into September sets the average high-temperature at a still tropical 87.6°F (30.9°C), a figure that deviates only slightly from August's 91.9°F (33.3°C). During the nights in September, Brooklyn experiences a consistent average temperature of 69.8°F (21°C).Heat index
The heat index value for September is computed to be a very hot 102.2°F (39°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Heat index determinations are made taking into account the shade and light air movements. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In Brooklyn, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 18.1 days. Throughout September, 2.64" (67mm) of precipitation is accumulated. In Brooklyn, during the entire year, the rain falls for 172.1 days and collects up to 31.46" (799mm) of precipitation.Snowfall
In Brooklyn, snow does not fall in February through November.Daylight
In Brooklyn, the average length of the day in September is 12h and 20min.On the first day of September in Brooklyn, sunrise is at 6:33 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:42 pm CDT.
Sunshine
The average sunshine in September in Brooklyn is 9.4h.UV index
In Brooklyn, 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 exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brooklyn, MS
- Average high temperature in September: 87.6°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 (58.1°F).
- Average low temperature in September: 69.8°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in September
Brooklyn, 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
Brooklyn, MS
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Brooklyn, MS
- Average humidity in September: 76%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Brooklyn, MS
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is August (4.57").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days in September
Brooklyn, MS
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is July (24 days).
The month with the least rainy days is November (8 days).
Average snowfall in September
Brooklyn, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Brooklyn, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 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
Brooklyn, MS
- Average daylight in September: 12h and 18min
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 24min
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 6min).
Average sunshine days in September
Brooklyn, MS
- Average sunshine days in September: 9.2 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (5.3 days).
Average UV index in September
Brooklyn, 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
Brooklyn, 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
Brooklyn, MS
- Average visibility in September: 5mi
The months with the highest visibility are June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, September and December (5mi).
