September weather forecastLiberty, MS
September
Weather in September
September, the first month of the autumn in Liberty, is also a hot month, with an average temperature varying between 68°F (20°C) and 87.3°F (30.7°C).Temperature
In the transition from August to September, Liberty reports an average high-temperature of a still tropical 87.3°F (30.7°C), indicating a close resemblance to the prior month. September's nights observe an average temperature of 68°F (20°C).Heat index
Throughout September, the heat index is estimated at a fiery hot 102.2°F (39°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
In Liberty, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 17.1 days. Throughout September, 1.69" (43mm) of precipitation is accumulated. In Liberty, during the entire year, the rain falls for 159.9 days and collects up to 22.6" (574mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In Liberty, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:49 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Liberty, MS
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (56.7°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is August (72.5°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure in September
Liberty, MS
- Average pressure in September: 29.98"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
Liberty, MS
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).
Average humidity in September
Liberty, MS
- Average humidity in September: 78%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Liberty, MS
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in September
Liberty, MS
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is August (19.9 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in September
Liberty, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Liberty, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 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
Liberty, 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 6min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Liberty, MS
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is August (9 days).
Average UV index in September
Liberty, MS
- Average UV index in September: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Liberty, MS
- Average cloud cover in September: 36
The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in September
Liberty, MS
- Average visibility in September: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (5mi).
