September weather forecast
Nicholson, MS

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Weather in September

The first month of the autumn, September, is still a tropical month in Nicholson, Mississippi, with an average temperature ranging between min 71.1°F (21.7°C) and max 88°F (31.1°C).

Temperature

With the onset of September, the average high-temperature registers at a still hot 88°F (31.1°C), subtly different from August's 91.9°F (33.3°C). In the month of September, Nicholson's average low-temperature falls to an agreeable 71.1°F (21.7°C).

Heat index

The heat index value during September is estimated at a scorching 104°F (40°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Nicholson, in September, it is raining for 18 days, with typically 3.19" (81mm) of accumulated precipitation. In Nicholson, during the entire year, the rain falls for 178.7 days and collects up to 38.62" (981mm) of precipitation.

Snowfall

January and September are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 0.5 snowfall days, and 0.35" (9mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of September, sunrise is at 6:35 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:44 pm CDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 suggests this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

Is it hot during September?

In Nicholson, 88°F (31.1°C) is the average high-temperature and 71.1°F (21.7°C) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 104°F (40°C).

What is the average humidity in September?

In Nicholson, the average relative humidity in September is 76%.

How many days does it rain in September in Nicholson?

In September, the rain falls for 18 days. Throughout September, 3.19" (81mm) of precipitation is accumulated.

When does it start snowing?

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Nicholson?

In Nicholson, the average day length in September is 12h and 20min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:44 pm CDT.

How many hours of sunshine does Nicholson have in September?

In September, the average sunshine duration is 9.6h.

How high is the UV index in September?

In Nicholson, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Nicholson, MS

Average temperature in September - Nicholson, MS
  • Average high temperature in September: 88°F

The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in September: 71.1°F

The months with the highest average low temperature are July and August (75°F).
The coldest month (with the lowest average low temperature) is January (43°F).

Average pressure in September
Nicholson, MS

Average pressure in September - Nicholson, MS
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in September
Nicholson, MS

Average wind speed in September - Nicholson, MS
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in September
Nicholson, MS

Average humidity in September - Nicholson, MS
  • Average humidity in September: 76%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Nicholson, MS

Average rainfall in September - Nicholson, MS
  • Average rainfall in September: 3.19"

The wettest month (with the highest rainfall) is August (5.47").
The driest month (with the least rainfall) is November (1.81").

Average rainfall days in September
Nicholson, MS

Average rainfall days in September - Nicholson, MS
  • Average rainfall days in September: 18 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Nicholson, MS

Average snowfall in September - Nicholson, MS
  • Average snowfall in September: 0.04"

The month with the highest snowfall is January (0.31").
The months with the least snowfall are February, March, April, May, June, July, August, October, November and December (0").

Average snowfall days in September
Nicholson, MS

Average snowfall days in September - Nicholson, MS
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).

Average daylight in September /
Average sunshine in September
Nicholson, MS

Average daylight in September / Average sunshine in September - Nicholson, MS
  • Average daylight in September: 12h and 2min

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 4min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

Average sunshine days in September
Nicholson, MS

Average sunshine days in September - Nicholson, MS
  • Average sunshine days in September: 9.9 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is August (6.6 days).

Average UV index in September
Nicholson, MS

Average UV index in September - Nicholson, MS
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September
Nicholson, MS

Average cloud cover in September - Nicholson, MS
  • Average cloud cover in September: 29

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in September
Nicholson, MS

Average visibility in September - Nicholson, MS
  • Average visibility in September: 6mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February and December (5mi).

Nicholson, Mississippi, USA

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