September weather forecast and climate
Lamar, OK

Weather in September

The first month of the autumn, September, is still a warm month in Lamar, Oklahoma, with average temperature fluctuating between 64.6°F (18.1°C) and 84.4°F (29.1°C).

Temperature

In Lamar, Oklahoma, the average high-temperature slightly decreases, from a hot 91.9°F (33.3°C) in August, to a moderately hot 84.4°F (29.1°C). In September, in Lamar, the average low-temperature is 64.6°F (18.1°C).

Heat index

The average heat index is estimated at a hot 91°F (32.8°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, wind, metabolic differences). 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

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

Rainfall

In September, the rain falls for 13 days. Throughout September, 2.68" (68mm) of precipitation is accumulated. Throughout the year, in Lamar, there are 133 rainfall days, and 29.72" (755mm) of precipitation is accumulated.

Snowfall

In Lamar snow does not fall in May through October.

Daylight

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

Sunshine

The average sunshine in Lamar is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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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FAQ

What is the temperature in September in Lamar?

In September, in Lamar, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 91°F (32.8°C).

What is the average humidity in September in Lamar?

The average relative humidity in September in Lamar, Oklahoma, is 69%.

How many days does it rain in September in Lamar?

In Lamar, in September, during 13 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow in Lamar?

In Lamar snow does not fall in May through October.

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

The average length of the day in September is 12.4h.

How many hours of sunshine does Lamar have in September?

In September, the average sunshine in Lamar is 8.8h.

What is the UV index intensity in September in Lamar?

The average daily maximum UV index in September in Lamar, Oklahoma, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in September
Lamar, OK

Average temperature in September - Lamar, OK
  • Average high temperature in September: 84.4°F

The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (48.6°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

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Average pressure in September
Lamar, OK

Average pressure in September - Lamar, OK
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.89").

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Average wind speed in September
Lamar, OK

Average wind speed in September - Lamar, OK
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).

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Average humidity in September
Lamar, OK

Average humidity in September - Lamar, OK
  • Average humidity in September: 69%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in September
Lamar, OK

Average rainfall in September - Lamar, OK
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in September
Lamar, OK

Average rainfall days in September - Lamar, OK
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in September
Lamar, OK

Average snowfall in September - Lamar, OK
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.57").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Lamar, OK

Average snowfall days in September - Lamar, OK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Lamar, OK

Average daylight in September / Average sunshine in September - Lamar, OK
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is August (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in September
Lamar, OK

Average sunshine days in September - Lamar, OK
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (13.6 days).

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Average UV index in September
Lamar, OK

Average UV index in September - Lamar, OK
  • Average UV index in September: 5

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
Lamar, OK

Average cloud cover in September - Lamar, OK
  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in September
Lamar, OK

Average visibility in September - Lamar, OK
  • Average visibility in September: 6mi

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

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