September weather forecast
Bruno, OK

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Bruno, Oklahoma, with an average temperature ranging between max 85.8°F (29.9°C) and min 65.7°F (18.7°C).

Temperature

Bruno's September weather features a light decline in high-temperatures, reducing from a tropical 93.4°F (34.1°C) in August to a warm 85.8°F (29.9°C). In Bruno, an average nighttime temperature of 65.7°F (18.7°C) is expected during September.

Heat index

The heat index value for September is evaluated at a tropical 93.2°F (34°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The average relative humidity in September in Bruno is 68%.

Rainfall

In Bruno, in September, it is raining for 12 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, there are 125.9 rainfall days, and 19.49" (495mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September in Bruno is 12h and 23min.
On the first day of the month, sunrise is at 6:58 am and sunset at 7:49 pm. On the last day of September, in Bruno, sunrise is at 7:18 am and sunset at 7:09 pm CDT.

Sunshine

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

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 6 in September leads to these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

How hot is September in Bruno?

The high-temperature during September is 85.8°F (29.9°C) and the low-temperature is 65.7°F (18.7°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is evaluated at 93.2°F (34°C).

What is the average humidity in September in Bruno?

The average relative humidity in September in Bruno, Oklahoma, is 68%.

How much does it rain in Bruno in September?

In Bruno, during September, the rain falls for 12 days and regularly aggregates up to 1.69" (43mm) of precipitation.

When it does not snow in Bruno?

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

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

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

What time are sunrise and sunset in September in Bruno?

On the first day of September, sunrise is at 6:58 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:09 pm CDT.

How many hours of sunshine does Bruno have in September?

In September, the average sunshine duration in Bruno, Oklahoma, is 8.9h.

How high is the UV index in September in Bruno?

The average daily maximum UV index in September in Bruno is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to 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
Bruno, OK

Average temperature in September - Bruno, OK
  • Average high temperature in September: 85.8°F

The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in September: 65.7°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 (34.5°F).

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Average pressure in September
Bruno, OK

Average pressure in September - Bruno, 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).

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Average wind speed in September
Bruno, OK

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

The windiest months (with the highest average wind speed) are March and April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in September
Bruno, OK

Average humidity in September - Bruno, OK
  • Average humidity in September: 68%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in September
Bruno, OK

Average rainfall in September - Bruno, OK
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is January (0.83").

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Average rainfall days in September
Bruno, OK

Average rainfall days in September - Bruno, OK
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is January (6.9 days).

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Average snowfall in September
Bruno, OK

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

The month with the highest snowfall is February (0.67").
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
Bruno, OK

Average snowfall days in September - Bruno, OK
  • 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
Bruno, OK

Average daylight in September / Average sunshine in September - Bruno, OK
  • 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: 8h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Bruno, OK

Average sunshine days in September - Bruno, OK
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is January (21.2 days).
The month with the least sunshine days is May (14.2 days).

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Average UV index in September
Bruno, OK

Average UV index in September - Bruno, OK
  • Average UV index in September: 6

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).

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Average cloud cover in September
Bruno, OK

Average cloud cover in September - Bruno, 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).

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Average visibility in September
Bruno, OK

Average visibility in September - Bruno, 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).

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Bruno, Oklahoma, USA

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