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's advent notes a subtle adjustment in average high-temperature to a warm 83.5°F (28.6°C) from August. Lamar experiences an average temperature drop to a comfortable 64.4°F (18°C) during September nights.Heat index
The average heat index in September is estimated at a tropical 89.6°F (32°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall in Lamar is September, when the rain falls for 13.4 days and typically collects 2.2" (56mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:30 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:42 pm CDT.
Sunshine
The average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 during September translates into the following guidance:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. 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
How hot does it get in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in Lamar in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September in Lamar?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Lamar, MS
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 64.4°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Lamar, 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 (29.95"Hg).
Average wind speed in September
Lamar, MS
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in September
Lamar, MS
- Average humidity in September: 73%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Lamar, MS
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is February (4.61").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in September
Lamar, MS
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is October (10 days).
Average snowfall in September
Lamar, MS
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Lamar, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lamar, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Lamar, MS
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Lamar, MS
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Lamar, MS
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Lamar, MS
- 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).
Lamar, Mississippi, USA
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