September weather forecast
Brewer, OK

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Weather in September

September, the first month of the autumn in Brewer, is still a warm month, with temperature in the range of an average high of 85.1°F (29.5°C) and an average low of 64.6°F (18.1°C).

Temperature

A modest decline in the average high-temperature is seen during September, decreasing from a hot 92.3°F (33.5°C) in August to a moderately hot 85.1°F (29.5°C). During the month of September, Brewer's nighttime temperature lowers to an average of 64.6°F (18.1°C).

Heat index

The heat index for September is computed to be a hot 93.2°F (34°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. 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 are essentially critical for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in September is 69%.

Rainfall

In Brewer, Oklahoma, during September, the rain falls for 12.3 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 138.1 rainfall days, and 30.71" (780mm) of precipitation is accumulated.

Snowfall

In Brewer, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September, sunrise is at 6:56 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:08 pm CDT.

Sunshine

In Brewer, the average sunshine in September is 8.9h.

UV index

In Brewer, Oklahoma, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the UV index of 5 transforms into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The average high-temperature, in September, in Brewer, is 85.1°F (29.5°C), while the average low-temperature is 64.6°F (18.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 93.2°F (34°C).

What is the average humidity in September?

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

How many days does it rain in September?

In Brewer, in September, it is raining for 12.3 days, with typically 2.48" (63mm) of accumulated precipitation.

When it does not snow?

In Brewer, snow does not fall in May through October.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:56 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:08 pm CDT.

How many hours of sunshine does Brewer have in September?

In September, the average sunshine duration is 8.9h.

How high is the UV index in September?

In Brewer, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
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
Brewer, OK

Average temperature in September - Brewer, OK
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (48.9°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure in September
Brewer, OK

Average pressure in September - Brewer, OK
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Brewer, OK

Average wind speed in September - Brewer, OK
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in September
Brewer, OK

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

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (66%).

Average rainfall in September
Brewer, OK

Average rainfall in September - Brewer, OK
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.73").

Average rainfall days in September
Brewer, OK

Average rainfall days in September - Brewer, OK
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in September
Brewer, OK

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

The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Brewer, OK

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

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Brewer, OK
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Brewer, OK

Average sunshine days in September - Brewer, OK
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (14.5 days).

Average UV index in September
Brewer, OK

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

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).

Average cloud cover in September
Brewer, OK

Average cloud cover in September - Brewer, OK
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in September
Brewer, OK

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

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

Brewer, Oklahoma, USA

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