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
The introduction of September notes a subtle temperature variation to a still hot 86.9°F (30.5°C) from August's 91°F (32.8°C). In Forest, an average nighttime temperature of 66.9°F (19.4°C) is expected during September.Heat index
The heat index value for September is appraised at a very hot 98.6°F (37°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
The average relative humidity in September is 73%.Rainfall
In Forest, in September, it is raining for 13.6 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 158.3 rainfall days, and 34.84" (885mm) of precipitation is accumulated.Snowfall
In Forest, snow does not fall in March through November.Daylight
In Forest, Mississippi, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:33 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:43 pm CDT.
Sunshine
In Forest, Mississippi, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index in Forest is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 5 in September transforms into this advice:
Exercise prevention - Warding off sunburn is urged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Forest have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Forest have in September?
What is the UV index intensity in September?
Average temperature in September
Forest, MS
- Average high temperature in September: 86.9°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 (54.1°F).
- Average low temperature in September: 66.9°F
The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).
Average pressure in September
Forest, 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
Forest, MS
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Forest, MS
- Average humidity in September: 73%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Forest, MS
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in September
Forest, MS
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in September
Forest, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Forest, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.1 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
Forest, MS
- Average daylight in September: 12h and 2min
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 2min
The month with the most sunshine is June (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
Forest, MS
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is August (9.6 days).
Average UV index in September
Forest, MS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Forest, MS
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Forest, MS
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
Forest, Mississippi, USA
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