The weather in September in Montana
It's warm in September in Montana with an average temperature of 26°C. Temperatures this month range from a low of 22°C to a high of 31°C. At night, you can expect temperatures between 9°C and 16°C.
Looking for great weather? September is a good time to be in Montana. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Montana, Bulgaria. 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 36°C in 2015, Montana reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 13°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 0°C to a highest value of 20°C.
Rainfall amount
In September, there is an average of 51 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in September for Montana
Click on any day in September to get detailed info about the usual weather on that day in Montana. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
Montana | New York | |
---|---|---|
Average temperature | 26°C | 27°C |
Max. temperature | 31°C | 31°C |
Min. temperature | 9°C | -5°C |
Total precipitation | 51 mm | 57 mm |
Rainy days | 8 days | 9 days |
Start of September
The month of September starts in Montana with hot temps, averaging around 29°C during the day and nights around 15°C.
Mid September
By mid-September, daytime temps stay steady at around 29°C, with nights around 14°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 Montana is around 23°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 8 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 Montana for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Montana, Bulgaria. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Montana
Temperature in September in Montana over the years
Precipitation charts
These charts show the average amount of precipitation in September in Montana, Bulgaria. 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 Montana
Total precipitation in September in Montana over the years
Daily UV index in September in Montana
This chart shows the average daily UV index in September in Montana, 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 Montana
Have you been to Montana in September?
Share your weather experience in September in Montana.
Average weather in Montana by month
Click on a month below to see detailed weather info for Montana. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.