Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The beginning of September marks a decrease in the average high-temperature, transitioning from 84.7°F (29.3°C) in August to a still moderately hot 74.3°F (23.5°C). Throughout September, Miles City anticipates an average low-temperature of 56.3°F (13.5°C).Humidity
The average relative humidity in September is 43%.Rainfall
In September, in Miles City, the rain falls for 6.7 days. Throughout September, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 83.1 rainfall days, and 6.81" (173mm) of precipitation is accumulated.Snowfall
In Miles City, snow does not fall in June through September.Daylight
In September, the average length of the day in Miles City is 12h and 32min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:41 pm. On the last day of September, in Miles City, Montana, sunrise is at 7:01 am and sunset at 6:44 pm MDT.
Sunshine
In September, the average sunshine is 10.5h.UV index
In Miles City, Montana, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 4 in September transforms into this advice:
Adopt protective measures - It is advised to guard against sun damage. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the temperature in September in Miles City?
What is the average humidity in September in Miles City?
How much does it rain in Miles City in September?
When it does not snow in Miles City?
Does it snow in Miles City in September?
How many hours of daylight does Miles City have in September?
When are sunrise and sunset in September in Miles City?
How many hours of sunshine does Miles City have in September?
What is the UV index reading in September in Miles City?
Average temperature in September
Miles City, MT
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in September
Miles City, MT
- Average pressure in September: 29.92"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Miles City, MT
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are February and August (9.3mph).
Average humidity in September
Miles City, MT
- Average humidity in September: 43%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (39%).
Average rainfall in September
Miles City, MT
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is May (1.1").
The driest months (with the least rainfall) are November and December (0.28").
Average rainfall days in September
Miles City, MT
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is December (2.6 days).
Average snowfall in September
Miles City, MT
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Miles City, MT
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Miles City, MT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Miles City, MT
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is April (16.5 days).
Average UV index in September
Miles City, MT
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Miles City, MT
- Average cloud cover in September: 21
The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in September
Miles City, MT
- 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).
Miles City, Montana, USA
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