September weather forecast
Billings, OK

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Weather in September

September, the first month of the autumn in Billings, is still a warm month, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 64.9°F (18.3°C).

Temperature

The start of September involves a subtle temperature drop, shifting from a tropical 92.8°F (33.8°C) in August to a warm 84.4°F (29.1°C). Billings, in the month of September, anticipates a consistent average low-temperature of 64.9°F (18.3°C).

Heat index

The heat index value for September is computed to be a hot 89.6°F (32°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

In Billings, the average relative humidity in September is 65%.

Rainfall

In Billings, Oklahoma, in September, during 12.1 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Billings, during the entire year, the rain falls for 119.3 days and collects up to 23.27" (591mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September in Billings is 12h and 24min.
On the first day of the month, sunrise is at 7:01 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:14 pm CDT.

Sunshine

In Billings, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 5 during September translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

How hot does it get in Billings in September?

In Billings, in September, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 89.6°F (32°C).

What is the average humidity in September in Billings?

In Billings, Oklahoma, the average relative humidity in September is 65%.

How many days does it rain in September in Billings?

In Billings, during September, the rain falls for 12.1 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Billings?

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

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

In September, the average day length in Billings is 12h and 24min.

When are sunrise and sunset in September in Billings?

On the first day of September in Billings, sunrise is at 7:01 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm CDT.

How many hours of sunshine does Billings have in September?

In September, the average sunshine duration in Billings, Oklahoma, is 8.7h.

How high is the UV index in September in Billings?

In September, the average daily maximum UV index in Billings, Oklahoma, is 5. A UV Index estimate 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
Billings, OK

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

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure in September
Billings, OK

Average pressure in September - Billings, 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 (29.87"Hg).

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Average wind speed in September
Billings, OK

Average wind speed in September - Billings, OK
  • Average wind speed in September: 8.7mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in September
Billings, OK

Average humidity in September - Billings, OK
  • Average humidity in September: 65%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in September
Billings, OK

Average rainfall in September - Billings, OK
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is December (0.83").

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Average rainfall days in September
Billings, OK

Average rainfall days in September - Billings, OK
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (4.2 days).

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Average snowfall in September
Billings, OK

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

The month with the highest snowfall is February (1.38").
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
Billings, OK

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

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Billings, 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: 8h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Billings, OK

Average sunshine days in September - Billings, OK
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is December (23.4 days).
The month with the least sunshine days is May (13.9 days).

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Average UV index in September
Billings, OK

Average UV index in September - Billings, 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
Billings, OK

Average cloud cover in September - Billings, OK
  • Average cloud cover in September: 25

The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are June and August (Cloud cover 19).

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Average visibility in September
Billings, OK

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

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