September weather forecast
Lenham, AR

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Weather in September

September, the first month of the autumn in Lenham, is still a warm month, with an average temperature ranging between min 64.8°F (18.2°C) and max 85.5°F (29.7°C).

Temperature

Lenham experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a tropical 91.4°F (33°C) in August to a warm 85.5°F (29.7°C). Lenham's September nights cool down to an average low-temperature of 64.8°F (18.2°C).

Heat index

The heat index for September is estimated at a fiery hot 95°F (35°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the lowest humidity are July, September and October, with an average relative humidity of 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 2.24" (57mm) of precipitation.

Snowfall

In Lenham, snow does not fall in April through October.

Daylight

In Lenham, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:44 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:55 pm CDT.

Sunshine

In Lenham, the average sunshine in September is 9.5h.

UV index

In Lenham, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

How hot is September in Lenham?

The high-temperature, in September, in Lenham, records 85.5°F (29.7°C), while the low-temperature is 64.8°F (18.2°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in September is estimated at 95°F (35°C).

What is the least humid month in Lenham?

The months with the lowest humidity are July, September and October, with an average relative humidity of 72%.

What is the average humidity in September in Lenham?

In Lenham, the average relative humidity in September is 72%.

What is the driest month in Lenham?

September is the month with the least rainfall in Lenham. Rain falls for 13.4 days and accumulates 2.24" (57mm) of precipitation.

How much does it rain in Lenham in September?

In Lenham, during September, the rain falls for 13.4 days and regularly aggregates up to 2.24" (57mm) of precipitation.

When it does not snow in Lenham?

In Lenham, Arkansas, snow does not fall in April through October.

How many hours of daylight does Lenham have in September?

In Lenham, the average day length in September is 12h and 23min.

When are sunrise and sunset in September in Lenham?

On the first day of September, sunrise is at 6:44 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:55 pm CDT.

How many hours of sunshine does Lenham have in September?

In September, the average sunshine duration in Lenham, Arkansas, is 9.5h.

How high is the UV index in September in Lenham?

The average daily maximum UV index in September in Lenham is 6. A UV Index 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
Lenham, AR

Average temperature in September - Lenham, AR
  • Average high temperature in September: 85.5°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in September: 64.8°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).

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Average pressure in September
Lenham, AR

Average pressure in September - Lenham, AR
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Lenham, AR

Average wind speed in September - Lenham, AR
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Lenham, AR

Average humidity in September - Lenham, AR
  • Average humidity in September: 72%

The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are July, September and October (72%).

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Average rainfall in September
Lenham, AR

Average rainfall in September - Lenham, AR
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days in September
Lenham, AR

Average rainfall days in September - Lenham, AR
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is November (10.2 days).

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Average snowfall in September
Lenham, AR

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

The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Lenham, AR

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

The month with the highest number of snowfall days is February (1.8 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
Lenham, AR

Average daylight in September / Average sunshine in September - Lenham, 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 3min

The months with the most sunshine are June, July and August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

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Average sunshine days in September
Lenham, AR

Average sunshine days in September - Lenham, AR
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is January (18.6 days).
The month with the least sunshine days is August (10 days).

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Average UV index in September
Lenham, AR

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

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).

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Average cloud cover in September
Lenham, AR

Average cloud cover in September - Lenham, AR
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 28).

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Average visibility in September
Lenham, AR

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

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

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Lenham, Arkansas, USA

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