September weather forecastBig Sky Canyon Village, MT
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Big Sky Canyon Village, Montana, with an average temperature ranging between max 63.5°F (17.5°C) and min 39.6°F (4.2°C).Temperature
With September's arrival, Big Sky Canyon Village's weather changes as the average high-temperature falls from an agreeable 72.7°F (22.6°C) in August to an enjoyable 63.5°F (17.5°C). Big Sky Canyon Village's September nights represent a significant downturn from the day's heat, with an average temperature of 39.6°F (4.2°C).Humidity
In Big Sky Canyon Village, the average relative humidity in September is 57%.Rainfall
In Big Sky Canyon Village, during September, the rain falls for 11.1 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 116.1 rainfall days, and 23.5" (597mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through December. In September, it is snowing for 3.6 days. Throughout September, 5.04" (128mm) of snow is accumulated. Throughout the year, there are 151.6 snowfall days, and 124.06" (3151mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:47 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:06 pm MDT.
Sunshine
In Big Sky Canyon Village, the average sunshine in September is 9.8h.UV index
In Big Sky Canyon Village, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Big Sky Canyon Village, MT
- Average high temperature in September: 63.5°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is December (22.5°F).
- Average low temperature in September: 39.6°F
The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (7.9°F).
Average pressure in September
Big Sky Canyon Village, MT
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Big Sky Canyon Village, MT
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Big Sky Canyon Village, MT
- Average humidity in September: 57%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is August (51%).
Average rainfall in September
Big Sky Canyon Village, MT
- Average rainfall in September: 1.81"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is July (1.18").
Average rainfall days in September
Big Sky Canyon Village, MT
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Big Sky Canyon Village, MT
- Average snowfall in September: 5.04"
The month with the highest snowfall is April (19.88").
The month with the least snowfall is August (0.08").
Average snowfall days in September
Big Sky Canyon Village, MT
- Average snowfall days in September: 3.6 days
The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is August (0.3 days).
Average daylight in September /
Average sunshine in September
Big Sky Canyon Village, MT
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Big Sky Canyon Village, MT
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is May (5.7 days).
Average UV index in September
Big Sky Canyon Village, MT
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Big Sky Canyon Village, MT
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 17).
Average visibility in September
Big Sky Canyon Village, MT
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
