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
September begins with an average high-temperature of a warm 85.3°F (29.6°C), reflecting close similarity to the preceding month. An average low-temperature of 68.4°F (20.2°C) is noted during the nights in September.Heat index
The heat index value for September is evaluated at a very hot 95°F (35°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Know that the heat index computations account for shaded terrains and slight winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in September is 76%.Rainfall
In September, the rain falls for 14.3 days. Throughout September, 1.97" (50mm) of precipitation is accumulated. Throughout the year, there are 158.7 rainfall days, and 30.28" (769mm) of precipitation is accumulated.Snowfall
In Horsegall, snow does not fall in March through November.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 6:59 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:09 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Horsegall have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Horsegall, SC
- Average high temperature in September: 85.3°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in September: 68.4°F
The months with the highest average low temperature are July and August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in September
Horsegall, SC
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Horsegall, SC
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Horsegall, SC
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is January (71%).
Average rainfall in September
Horsegall, SC
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is November (1.38").
Average rainfall days in September
Horsegall, SC
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Horsegall, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Horsegall, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Horsegall, SC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Horsegall, SC
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is August (7.8 days).
Average UV index in September
Horsegall, SC
- 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
Horsegall, SC
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are July and October (Cloud cover 29).
Average visibility in September
Horsegall, SC
- 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).
Horsegall, South Carolina, USA
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