September weather forecastMcCaskill, SC
September
Weather in September
September, the first month of the autumn in McCaskill, is still a warm month, with an average temperature ranging between max 83.8°F (28.8°C) and min 66.2°F (19°C).Temperature
McCaskill measures an average high-temperature of a moderately hot 83.8°F (28.8°C) in September, nearly consistent with the preceding month. The low-temperature averages to a comfortable 66.2°F (19°C) during the nights of September.Heat index
The heat index for September is appraised at a tropical 91.4°F (33°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In McCaskill, the average relative humidity in September is 74%.Rainfall
In McCaskill, during September, the rain falls for 13.7 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 157 rainfall days, and 31.54" (801mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:48 pm. On the last day of September, in McCaskill, sunrise is at 7:17 am and sunset at 7:08 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In McCaskill, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 6 in September translates into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
McCaskill, SC
- Average high temperature in September: 83.8°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).
Average pressure in September
McCaskill, SC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
McCaskill, SC
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
McCaskill, SC
- Average humidity in September: 74%
The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January and November (70%).
Average rainfall in September
McCaskill, SC
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is August (3.66").
The driest months (with the least rainfall) are January and November (1.97").
Average rainfall days in September
McCaskill, SC
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is October (8.2 days).
Average snowfall in September
McCaskill, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
McCaskill, SC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.5 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
McCaskill, SC
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
McCaskill, SC
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
McCaskill, SC
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
McCaskill, SC
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
McCaskill, 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).
