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
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a hot 90.5°F (32.5°C) in August to a warm 85.1°F (29.5°C). Wallerville's nighttime temperature in September falls to an average of 64.6°F (18.1°C).Heat index
For September, the heat index is estimated at a tropical 93.2°F (34°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In September, the average relative humidity is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 9 days and accumulates 0.59" (15mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
In September, the average length of the day in Wallerville is 12h and 23min.On the first day of September in Wallerville, Mississippi, sunrise is at 6:29 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:40 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 5 in September transforms into this advice:
Take precautions - Protection against sun damage is advised. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Wallerville in September?
What is the average humidity in September in Wallerville?
What is the driest month in Wallerville?
How many days does it rain in September in Wallerville?
When it does not snow in Wallerville?
How many hours of daylight does Wallerville have in September?
When is the sunrise / sunset in September in Wallerville?
How long on average sun shines in September in Wallerville?
What is the UV index reading in September in Wallerville?
Average temperature in September
Wallerville, MS
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in September
Wallerville, MS
- Average pressure in September: 30.01"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
Wallerville, MS
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Wallerville, MS
- Average humidity in September: 72%
The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Wallerville, MS
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is July (1.57").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in September
Wallerville, MS
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
Wallerville, MS
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Wallerville, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 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
Wallerville, MS
- Average daylight in September: 12h and 2min
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: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Wallerville, MS
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in September
Wallerville, MS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Wallerville, MS
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in September
Wallerville, MS
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Wallerville, Mississippi, USA
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