September weather forecast
Lambert, AR

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Weather in September

The first month of the autumn, September, is still a warm month in Lambert, Arkansas, with an average temperature ranging between min 63.7°F (17.6°C) and max 84.9°F (29.4°C).

Temperature

The arrival of September signals a subtle shift in temperature, down from a hot 91°F (32.8°C) in August to a moderately hot 84.9°F (29.4°C). September is noted for a mean low-temperature of 63.7°F (17.6°C).

Heat index

The heat index in September is estimated at a tropical 93.2°F (34°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for 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 Lambert, the average relative humidity in September is 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.93" (49mm) of precipitation.

Snowfall

In Lambert, Arkansas, 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 the month, sunrise is at 6:46 am and sunset at 7:38 pm. On the last day of September, in Lambert, sunrise is at 7:07 am and sunset at 6:57 pm CDT.

Sunshine

In September, the average sunshine in Lambert is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

How hot is it in Lambert in September?

In Lambert, in September, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 63.7°F (17.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 93.2°F (34°C).

What is the average humidity in September in Lambert?

The average relative humidity in September in Lambert, Arkansas, is 73%.

What is the driest month in Lambert?

September is the month with the least rainfall in Lambert, Arkansas. Rain falls for 11.5 days and accumulates 1.93" (49mm) of precipitation.

How much does it rain in Lambert in September?

In Lambert, Arkansas, during September, the rain falls for 11.5 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Lambert?

April through October are months without snowfall.

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

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

When is the sunrise / sunset in September in Lambert?

In September, on the first day of the month, sunrise is at 6:46 am and sunset at 7:38 pm. On the last day of the month, in Lambert, Arkansas, sunrise is at 7:07 am and sunset at 6:57 pm CDT.

How long on average sun shines in September in Lambert?

In September, the average sunshine duration is 9.3h.

What is the UV index reading in September in Lambert?

In September, the average daily maximum UV index in Lambert is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from 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
Lambert, AR

Average temperature in September - Lambert, AR
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (49.3°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in September
Lambert, AR

Average pressure in September - Lambert, 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
Lambert, AR

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

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Lambert, AR

Average humidity in September - Lambert, AR
  • Average humidity in September: 73%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Lambert, AR

Average rainfall in September - Lambert, AR
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in September
Lambert, AR

Average rainfall days in September - Lambert, AR
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is January (9.2 days).

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Average snowfall in September
Lambert, AR

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

The month with the highest snowfall is February (0.94").
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
Lambert, AR

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

The month with the highest number of snowfall days is February (1.7 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
Lambert, AR

Average daylight in September / Average sunshine in September - Lambert, 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 July (Average sunshine: 10h and 18min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Lambert, AR

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

The months with the most sunshine days are January and October (19.4 days).
The month with the least sunshine days is August (13.5 days).

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Average UV index in September
Lambert, AR

Average UV index in September - Lambert, AR
  • 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).

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Average cloud cover in September
Lambert, AR

Average cloud cover in September - Lambert, AR
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).

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Average visibility in September
Lambert, AR

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

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

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Lambert, Arkansas, USA

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