The weather in September in Banner

It's warm in September in Banner with an average temperature of 24°C. Temperatures this month range from a low of 19°C to a high of 32°C. At night, you can expect temperatures between 6°C and 14°C.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Banner, Wyoming. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 39°C in 2022, Banner reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 1°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of -8°C to a highest value of 21°C.

Precipitation and snowfall

In September, there is an average of 79 mm of precipitation, spread over 11 days. Of the total precipitation, about 7,6 cm falls as snow in September. The wind speed is around 4 Bft, mostly coming from the West.

Daily weather in September for Banner

Click on any day in September to get detailed info about the usual weather on that day in Banner. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Banner New York
Average temperature 24°C 27°C
Max. temperature 32°C 31°C
Min. temperature 6°C -5°C
Total precipitation 79 mm 57 mm
Rainy days 11 days 9 days
Total snowfall 7,6 cm 0 cm
Snowy days 4 days 0 days

Start of September

The month of September starts in Banner with hot temps, averaging around 28°C during the day and nights around 11°C.

Mid September

By mid-September, daytime temps drop to around 24°C, with nights around 10°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of September

By the end of September, the average daytime temperature in Banner is around 22°C, while nighttime temps are about 8°C. A shower might pop up, but overall, the weather will be dry and sunny.

UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Banner for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Banner, Wyoming. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Banner

Temperature in September in Banner over the years

Precipitation charts

These charts show the average amount of precipitation in September in Banner, Wyoming. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Banner

Total precipitation in September in Banner over the years

Daily Snowfall in September in Banner

Snowfall in September in Banner per year

Daily UV index in September in Banner

This chart shows the average daily UV index in September in Banner, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Banner

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Average weather in Banner by month

Click on a month below to see detailed weather info for Banner. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.