September weather forecast
Rosston, OK

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Rosston, Oklahoma, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 83.8°F (28.8°C).

Temperature

Rosston's transition into September involves a gentle shift in temperature, receding from a hot 91.9°F (33.3°C) in August to a moderately hot 83.8°F (28.8°C). An average minimum temperature of 64.9°F (18.3°C) is recorded in Rosston during the month of September.

Heat index

The heat index value during September is computed to be a hot 86°F (30°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

In September, the average relative humidity in Rosston is 58%.

Rainfall

In September, the rain falls for 11.4 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Rosston, there are 96.5 rainfall days, and 16.46" (418mm) of precipitation is accumulated.

Snowfall

In Rosston, Oklahoma, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of September in Rosston, Oklahoma, sunrise is at 7:11 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:24 pm CDT.

Sunshine

In Rosston, the average sunshine in September is 9h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

How hot is it in Rosston in September?

In Rosston, 83.8°F (28.8°C) is the average high-temperature and 64.9°F (18.3°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

What is the average humidity in September in Rosston?

In September, the average relative humidity in Rosston is 58%.

How much does it rain in Rosston in September?

In September, the rain falls for 11.4 days. Throughout September, 1.3" (33mm) of precipitation is accumulated.

When it does not snow in Rosston?

May through September are months without snowfall in Rosston, Oklahoma.

Does it snow in Rosston in September?

In Rosston, Oklahoma, in September, it doesn't snow. In October, it regularly snows.

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

The average day length in September is 12h and 24min.

What time are sunrise and sunset in September in Rosston?

On the first day of September in Rosston, Oklahoma, sunrise is at 7:11 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:24 pm CDT.

How many hours of sunshine does Rosston have in September?

In September, the average sunshine duration is 9h.

What is the UV index reading in September in Rosston?

In September, the average daily maximum UV index in Rosston is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
Rosston, OK

Average temperature in September - Rosston, OK
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (46.9°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

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Average pressure in September
Rosston, OK

Average pressure in September - Rosston, OK
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in September
Rosston, OK

Average wind speed in September - Rosston, OK
  • Average wind speed in September: 11.5mph

The windiest month (with the highest average wind speed) is April (13.9mph).
The calmest month (with the lowest average wind speed) is August (10.3mph).

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Average humidity in September
Rosston, OK

Average humidity in September - Rosston, OK
  • Average humidity in September: 58%

The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is July (52%).

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Average rainfall in September
Rosston, OK

Average rainfall in September - Rosston, OK
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is October (2.2").
The driest month (with the least rainfall) is February (0.55").

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Average rainfall days in September
Rosston, OK

Average rainfall days in September - Rosston, OK
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is August (12.8 days).
The month with the least rainy days is January (3.2 days).

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Average snowfall in September
Rosston, OK

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

The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Rosston, OK

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

The month with the highest number of snowfall days is February (3.2 days).
The 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
Rosston, OK

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 0min

The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in September
Rosston, OK

Average sunshine days in September - Rosston, OK
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is August (15.1 days).

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Average UV index in September
Rosston, OK

Average UV index in September - Rosston, 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).

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Average cloud cover in September
Rosston, OK

Average cloud cover in September - Rosston, OK
  • Average cloud cover in September: 23

The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 17).

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Average visibility in September
Rosston, OK

Average visibility in September - Rosston, 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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Rosston, Oklahoma, USA

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