September weather forecastPetertown, MS
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Petertown, Mississippi, with an average temperature fluctuating between 84°F (28.9°C) and 64°F (17.8°C).Temperature
At the onset of September, Petertown records an average high-temperature of a moderately hot 84°F (28.9°C), showing little deviation from the preceding month. In Petertown, an average temperature of 64°F (17.8°C) is noted during September nights.Heat index
For September, the heat index is calculated to be a hot 91.4°F (33°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In Petertown, the average relative humidity in September is 73%.Rainfall
In Petertown, in September, it is raining for 13.5 days, with typically 2.6" (66mm) of accumulated precipitation. In Petertown, during the entire year, the rain falls for 169.1 days and collects up to 38.11" (968mm) of precipitation.Snowfall
In Petertown, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September in Petertown, sunrise is at 6:26 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:37 pm CDT.
Sunshine
In Petertown, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against skin and eye damage is obliged. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Petertown, MS
- Average high temperature in September: 84°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (48°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in September
Petertown, 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
Petertown, MS
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in September
Petertown, MS
- Average humidity in September: 73%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Petertown, MS
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in September
Petertown, MS
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Petertown, MS
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Petertown, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Petertown, MS
- 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: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in September
Petertown, MS
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Petertown, 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
Petertown, MS
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in September
Petertown, MS
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, May and July (5mi).
