September weather forecast
Blue, OK

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Weather in September

September, the first month of the autumn in Blue, is still a warm month, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 85.8°F (29.9°C).

Temperature

September marks a gentle change in average high-temperature, declining from August's tropical 94.3°F (34.6°C) to a warm 85.8°F (29.9°C). An average low-temperature of 66.7°F (19.3°C) is anticipated throughout the nights during September.

Heat index

For September, the heat index is calculated to be a tropical 93.2°F (34°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

The average relative humidity in September in Blue, Oklahoma, is 67%.

Rainfall

In September, the rain falls for 12.8 days. Throughout September, 2.99" (76mm) of precipitation is accumulated. In Blue, Oklahoma, during the entire year, the rain falls for 139 days and collects up to 32.32" (821mm) of precipitation.

Snowfall

April through October are months without snowfall in Blue, Oklahoma.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September in Blue, sunrise is at 6:59 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:10 pm CDT.

Sunshine

In September, the average sunshine in Blue is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

Is it hot in Blue during September?

In September, in Blue, the average high-temperature is 85.8°F (29.9°C), and the average low-temperature is 66.7°F (19.3°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 93.2°F (34°C).

What is the average humidity in September in Blue?

In September, the average relative humidity in Blue is 67%.

How much does it rain in Blue in September?

In Blue, during September, the rain falls for 12.8 days and regularly aggregates up to 2.99" (76mm) of precipitation.

When it does not snow in Blue?

In Blue, Oklahoma, snow does not fall in April through October.

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

In September, the average day length in Blue, Oklahoma, is 12h and 22min.

What time are sunrise and sunset in September in Blue?

In September, on the first day of the month, sunrise is at 6:59 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:10 pm CDT.

How many hours of sunshine does Blue have in September?

In Blue, Oklahoma, the average sunshine duration in September is 8.6h.

How high is the UV index in September in Blue?

In September, the average daily maximum UV index in Blue is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
Blue, OK

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

The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in September: 66.7°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36°F).

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Average pressure in September
Blue, OK

Average pressure in September - Blue, 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 (29.9"Hg).

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Average wind speed in September
Blue, OK

Average wind speed in September - Blue, OK
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in September
Blue, OK

Average humidity in September - Blue, OK
  • Average humidity in September: 67%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in September
Blue, OK

Average rainfall in September - Blue, OK
  • Average rainfall in September: 2.99"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.81").

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Average rainfall days in September
Blue, OK

Average rainfall days in September - Blue, OK
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Blue, OK

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

The month with the highest snowfall is February (0.98").
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
Blue, OK

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

The month with the highest number of snowfall days is February (1.5 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
Blue, OK

Average daylight in September / Average sunshine in September - Blue, 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 4min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Blue, OK

Average sunshine days in September - Blue, OK
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is March (14.6 days).

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Average UV index in September
Blue, OK

Average UV index in September - Blue, 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
Blue, OK

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

The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Blue, OK

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

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