September weather forecast
Gillham, AR

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Weather in September

September, the first month of the autumn in Gillham, is also a hot month, with an average temperature varying between 86.9°F (30.5°C) and 65.5°F (18.6°C).

Temperature

With the commencement of September, Gillham records a moderate temperature decline, with the average high easing from August's hot 93.2°F (34°C) to a still tropical 86.9°F (30.5°C). During September, the average low-temperature is recorded at a refreshing 65.5°F (18.6°C).

Heat index

The heat index in September is evaluated at a fiery hot 96.8°F (36°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Gillham, the average relative humidity in September is 69%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.1 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

April through November are months without snowfall in Gillham.

Daylight

In September, the average length of the day in Gillham is 12h and 22min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:02 pm CDT.

Sunshine

In Gillham, the average sunshine in September is 9.4h.

UV index

In Gillham, Arkansas, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

How hot is it in Gillham in September?

The average high-temperature, in September, in Gillham, is 86.9°F (30.5°C), while the average low-temperature is 65.5°F (18.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 96.8°F (36°C).

What is the average humidity in September in Gillham?

The average relative humidity in September in Gillham is 69%.

What is the driest month in Gillham?

September is the month with the least rainfall. Rain falls for 11.1 days and accumulates 1.34" (34mm) of precipitation.

How many days does it rain in September in Gillham?

In September, in Gillham, the rain falls for 11.1 days. Throughout September, 1.34" (34mm) of precipitation is accumulated.

When it does not snow in Gillham?

In Gillham, Arkansas, snow does not fall in April through November.

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

In September, the average day length in Gillham is 12h and 22min.

When are sunrise and sunset in September in Gillham?

In September, on the first day of the month, sunrise is at 6:51 am and sunset at 7:42 pm. On the last day of the month, in Gillham, sunrise is at 7:11 am and sunset at 7:02 pm CDT.

How long on average sun shines in September in Gillham?

In Gillham, the average sunshine duration in September is 9.4h.

What is the UV index reading in September in Gillham?

In Gillham, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes 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
Gillham, AR

Average temperature in September - Gillham, AR
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (51.3°F).

  • Average low temperature in September: 65.5°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in September
Gillham, AR

Average pressure in September - Gillham, AR
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Gillham, AR

Average wind speed in September - Gillham, AR
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Gillham, AR

Average humidity in September - Gillham, AR
  • Average humidity in September: 69%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (68%).

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Average rainfall in September
Gillham, AR

Average rainfall in September - Gillham, AR
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (1.34").

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Average rainfall days in September
Gillham, AR

Average rainfall days in September - Gillham, AR
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in September
Gillham, AR

Average snowfall in September - Gillham, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Gillham, AR

Average snowfall days in September - Gillham, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Gillham, AR

Average daylight in September / Average sunshine in September - Gillham, AR
  • 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Gillham, AR

Average sunshine days in September - Gillham, AR
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is January (20.5 days).
The months with the least sunshine days are May and August (14.8 days).

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Average UV index in September
Gillham, AR

Average UV index in September - Gillham, AR
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Gillham, AR

Average cloud cover in September - Gillham, AR
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in September
Gillham, AR

Average visibility in September - Gillham, AR
  • Average visibility in September: 6mi

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

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Gillham, Arkansas, USA

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