September weather forecast and climate
Lambert, AR

Weather in September

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

Temperature

In September, the average high-temperature marginally drops, from a tropical 91°F (32.8°C) in August, to a moderately hot 84.9°F (29.4°C). In Lambert, Arkansas, the average low-temperature is 63.7°F (17.6°C).

Heat index

In September, the average heat index is estimated at a tropical 93.7°F (34.3°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, differences in body mass, height, and shape, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in September is 73%.

Rainfall

The month with the least rainfall in Lambert is September when the rain falls for 11.5 days and typically collects 1.93" (49mm) of precipitation.

Snowfall

In Lambert snow does not fall in April through October.

Daylight

In Lambert, the average length of the day is 12.4h.

Sunshine

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

UV index

In Lambert, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Lambert?

In Lambert, Arkansas, 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. 'real feel', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, is evaluated at 93.7°F (34.3°C).

What is the average humidity in September in Lambert?

In Lambert, the average relative humidity in September is 73%.

How much does it rain in Lambert in September?

In September, in Lambert, the rain falls for 11.5 days. Throughout September, 1.93" (49mm) of precipitation is accumulated.

What is the driest month in Lambert?

The month with the least rainfall is September when the rain falls for 11.5 days and typically collects 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 September, the average length of the day in Lambert, Arkansas, is 12.4h.

How many hours of sunshine does Lambert have in September?

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

How high is the UV index in September in Lambert?

The average daily maximum UV index in September in Lambert, Arkansas, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

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"

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

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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").
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).
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: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 9.3h

The month with the most sunshine is July (Average sunshine: 10.3h).
Months with the least sunshine are January, February and December (Average sunshine: 5.1).

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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

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

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).
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

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

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