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 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
September is marked by an average high-temperature of a still hot 87.6°F (30.9°C), almost identical to the preceding month. Westchester's nighttime temperature in September consistently rests at a moderately hot 79.7°F (26.5°C).Heat index
The heat index value during September is appraised at a sweltering 100.4°F (38°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
In Westchester, the average relative humidity in September is 72%.Rainfall
In September, the rain falls for 13.8 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 110.8 rainfall days, and 8.19" (208mm) of precipitation is accumulated.Snowfall
The only month with snowfall in Westchester is September. September has the most snowfall days of the year in Westchester. Snow falls for 0.1 days.Daylight
In September, the average length of the day in Westchester is 12h and 17min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:40 pm. On the last day of September, in Westchester, sunrise is at 7:13 am and sunset at 7:08 pm EDT.
Sunshine
In Westchester, the average sunshine in September is 9.2h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index in Westchester. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 7 during September leads to these instructions:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
How hot is September in Westchester?
What is the average humidity in September in Westchester?
How many days does it rain in September in Westchester?
What is the snowiest month in Westchester?
When does it start snowing in Westchester?
How many hours of daylight does Westchester have in September?
When are sunrise and sunset in September in Westchester?
How many hours of sunshine does Westchester have in September?
When is the highest UV index in Westchester?
What is the UV index reading in September in Westchester?
Average temperature in September
Westchester, FL
- Average high temperature in September: 87.6°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (73.9°F).
- Average low temperature in September: 79.7°F
The month with the highest average low temperature is August (81.7°F).
The coldest month (with the lowest average low temperature) is January (62.4°F).
Average pressure in September
Westchester, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).
Average wind speed in September
Westchester, FL
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Westchester, FL
- Average humidity in September: 72%
The month with the highest relative humidity is December (74%).
The month with the lowest relative humidity is March (67%).
Average rainfall in September
Westchester, FL
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is August (1.42").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Westchester, FL
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is December (4.7 days).
Average snowfall days in September
Westchester, FL
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Westchester, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Westchester, FL
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Westchester, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in September
Westchester, FL
- Average cloud cover in September: 28
The month with the most cloud cover is October (Cloud cover 33).
The month with the least cloud cover is April (Cloud cover 25).
Average visibility in September
Westchester, FL
- 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).
Westchester, Florida, USA
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