September weather forecastNahanni Butte, Canada
September
Weather in September
The first month of the autumn, September, is still a mild month in Nahanni Butte, Canada, with an average temperature fluctuating between 4.4°C (39.9°F) and 14.2°C (57.6°F).Temperature
The onset of September is marked by a decrease in temperature, transitioning from a pleasant 20.7°C (69.3°F) in August to a mild 14.2°C (57.6°F). During the month of September, the nighttime temperature in Nahanni Butte falls to an average of 4.4°C (39.9°F).Humidity
In September, the average relative humidity is 70%.Rainfall
In Nahanni Butte, in September, during 9.3 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, in Nahanni Butte, Canada, there are 76.7 rainfall days, and 299mm (11.77") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, August through December. In Nahanni Butte, in September, during 0.9 snowfall days, 14mm (0.55") of snow is typically accumulated. In Nahanni Butte, during the entire year, snow falls for 91.4 days and aggregates up to 835mm (32.87") of snow.Daylight
The average length of the day in September is 12h and 52min.On the first day of the month, sunrise is at 7:08 am and sunset at 9:18 pm. On the last day of September, in Nahanni Butte, sunrise is at 8:19 am and sunset at 7:46 pm MDT.
Sunshine
In Nahanni Butte, the average sunshine in September is 7.8h.UV index
In September, the average daily maximum UV index in Nahanni Butte, Canada, is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 2 during September translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nahanni Butte, Canada
- Average high temperature in September: 14.2°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is December (-14.1°C).
- Average low temperature in September: 4.4°C
The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is January (-21.4°C).
Average pressure in September
Nahanni Butte, Canada
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is February (1019.5mbar).
The month with the lowest atmospheric pressure is June (1010.1mbar).
Average wind speed in September
Nahanni Butte, Canada
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is May (9.5km/h).
The calmest month (with the lowest average wind speed) is December (6.9km/h).
Average humidity in September
Nahanni Butte, Canada
- Average humidity in September: 70%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (56%).
Average rainfall in September
Nahanni Butte, Canada
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is June (50mm).
The driest month (with the least rainfall) is December (9mm).
Average rainfall days in September
Nahanni Butte, Canada
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is June (13.1 days).
The months with the least rainy days are February and December (1.3 days).
Average snowfall in September
Nahanni Butte, Canada
- Average snowfall in September: 14mm
The month with the highest snowfall is April (148mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in September
Nahanni Butte, Canada
- Average snowfall days in September: 0.9 days
The month with the highest number of snowfall days is March (16.6 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Nahanni Butte, Canada
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Nahanni Butte, Canada
- Average sunshine days in September: 18.7 days
The month with the most sunshine days is May (19.1 days).
The month with the least sunshine days is April (10.6 days).
Average UV index in September
Nahanni Butte, Canada
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Nahanni Butte, Canada
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Nahanni Butte, Canada
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March and December (5km).
