September weather forecastLonglac, Canada
September
Weather in September
September, the first month of the autumn in Longlac, is still a refreshing month, with an average temperature ranging between min 6.8°C (44.2°F) and max 16.2°C (61.2°F).Temperature
September brings a decrease in the average high-temperature, falling from August's agreeable 22°C (71.6°F) to a refreshing 16.2°C (61.2°F). Nighttime temperature experiences an average drop to a chilly 6.8°C (44.2°F) in September.Humidity
In September, the average relative humidity in Longlac is 79%.Rainfall
The months with the most rainfall in Longlac are June and September, with an average 50mm (1.97") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.9 snowfall days, it receives 14mm (0.55") of snow. Throughout the year, there are 135.1 snowfall days, and 1532mm (60.31") of snow is accumulated.Daylight
In September, the average length of the day in Longlac is 12h and 35min.On the first day of September, sunrise is at 7:02 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 7:26 pm EDT.
Sunshine
In September, the average sunshine is 6.5h.UV index
In Longlac, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 2 translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Longlac, Canada
- Average high temperature in September: 16.2°C
The warmest month (with the highest average high temperature) is July (23.9°C).
The month with the lowest average high temperature is January (-12.1°C).
- Average low temperature in September: 6.8°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is January (-20.8°C).
Average pressure in September
Longlac, Canada
- Average pressure in September: 1015mbar
The month with the highest atmospheric pressure is March (1019.4mbar).
The month with the lowest atmospheric pressure is July (1011.8mbar).
Average wind speed in September
Longlac, Canada
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is November (11.8km/h).
The calmest months (with the lowest average wind speed) are June and December (10.5km/h).
Average humidity in September
Longlac, Canada
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and December (94%).
The month with the lowest relative humidity is June (66%).
Average rainfall in September
Longlac, Canada
- Average rainfall in September: 50mm
The wettest months (with the highest rainfall) are June and September (50mm).
The driest month (with the least rainfall) is February (24mm).
Average rainfall days in September
Longlac, Canada
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is August (16.2 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Longlac, Canada
- Average snowfall in September: 14mm
The month with the highest snowfall is April (256mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Longlac, Canada
- Average snowfall days in September: 0.9 days
The month with the highest number of snowfall days is January (23.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Longlac, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 6h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 1h and 18min).
Average sunshine days in September
Longlac, Canada
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is May (15.3 days).
The month with the least sunshine days is March (8.7 days).
Average UV index in September
Longlac, 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, October, November and December (UV index 1).
Average cloud cover in September
Longlac, Canada
- Average cloud cover in September: 50
The month with the most cloud cover is January (Cloud cover 87).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Longlac, Canada
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January, February and March (5km).
