September weather forecastCalhoun, MS
September
Weather in September
The first month of the autumn, September, is still a tropical month in Calhoun, Mississippi, with an average temperature fluctuating between 87.8°F (31°C) and 67.6°F (19.8°C).Temperature
The commencement of September records an average high-temperature of a still tropical 87.8°F (31°C), barely varying from August's 91.6°F (33.1°C). During September, Calhoun observes a consistent average nighttime temperature of 67.6°F (19.8°C).Heat index
September's mean heat index is computed to be a sweltering 102.2°F (39°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Calhoun, in September, it is raining for 15 days, with typically 2.01" (51mm) of accumulated precipitation. In Calhoun, during the entire year, the rain falls for 157.7 days and collects up to 23.94" (608mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day in Calhoun is 12h and 21min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:42 pm CDT.
Sunshine
In Calhoun, the average sunshine in September is 9.1h.UV index
In Calhoun, Mississippi, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calhoun, MS
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in September: 67.6°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure in September
Calhoun, 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
Calhoun, MS
- Average wind speed in September: 4.9mph
The windiest months (with the highest average wind speed) are January, February and April (7mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Calhoun, MS
- Average humidity in September: 75%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Calhoun, MS
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days in September
Calhoun, MS
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Calhoun, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Calhoun, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 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
Calhoun, MS
- Average daylight in September: 12h and 18min
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 6min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Calhoun, MS
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Calhoun, MS
- Average UV index in September: 5
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
Calhoun, MS
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Calhoun, MS
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October and November (6mi).
The months with the lowest visibility are May, July, August, September and December (5mi).
