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
September
Weather in September
Temperature
Smooth Rock Falls's progression into September includes a drop in the average high-temperature, from an agreeable 22.3°C (72.1°F) in August to a comfortable 17.1°C (62.8°F). An average nighttime temperature of 7.1°C (44.8°F) is witnessed in Smooth Rock Falls throughout September.Humidity
In Smooth Rock Falls, the average relative humidity in September is 79%.Rainfall
In Smooth Rock Falls, in September, during 14.5 rainfall days, 48mm (1.89") of precipitation is typically accumulated. In Smooth Rock Falls, during the entire year, the rain falls for 111.6 days and collects up to 514mm (20.24") of precipitation.Snowfall
January through June, September through December are months with snowfall in Smooth Rock Falls, Canada. September is the first month it typically snows in Smooth Rock Falls. Throughout September, in the average 0.5 snowfall days, it receives 3mm (0.12") of snow. In Smooth Rock Falls, during the entire year, snow falls for 114.9 days and aggregates up to 1280mm (50.39") of snow.Daylight
In Smooth Rock Falls, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 6:43 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:06 pm EDT.
Sunshine
In September, the average sunshine is 6.8h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during September translates into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Smooth Rock Falls in September?
What is the average humidity in September in Smooth Rock Falls?
How much does it rain in Smooth Rock Falls in September?
When does it start to snow in Smooth Rock Falls?
How many hours of daylight does Smooth Rock Falls have in September?
What time are sunrise and sunset in September in Smooth Rock Falls?
How many hours of sunshine does Smooth Rock Falls have in September?
What is the UV index reading in September in Smooth Rock Falls?
Average temperature in September
Smooth Rock Falls, Canada
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is July (24.6°C).
The month with the lowest average high temperature is January (-11.8°C).
- Average low temperature in September: 7.1°C
The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-20.8°C).
Average pressure in September
Smooth Rock Falls, Canada
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is March (1019.4mbar).
The month with the lowest atmospheric pressure is July (1011.2mbar).
Average wind speed in September
Smooth Rock Falls, Canada
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is November (11.4km/h).
The calmest month (with the lowest average wind speed) is June (9.9km/h).
Average humidity in September
Smooth Rock Falls, Canada
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and March (95%).
The months with the lowest relative humidity are June and July (68%).
Average rainfall in September
Smooth Rock Falls, Canada
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is October (71mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in September
Smooth Rock Falls, Canada
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is February (0.7 days).
Average snowfall in September
Smooth Rock Falls, Canada
- Average snowfall in September: 3mm
The month with the highest snowfall is April (247mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Smooth Rock Falls, Canada
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is December (18.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Smooth Rock Falls, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 0min).
The month with the least sunshine is February (Average sunshine: 1h and 6min).
Average sunshine days in September
Smooth Rock Falls, Canada
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is January (15.8 days).
The month with the least sunshine days is April (9.6 days).
Average UV index in September
Smooth Rock Falls, Canada
- Average UV index in September: 2
The months with the highest UV index are June and 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
Smooth Rock Falls, Canada
- Average cloud cover in September: 51
The months with the most cloud cover are January and February (Cloud cover 88).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in September
Smooth Rock Falls, Canada
- Average visibility in September: 8km
The months with the highest visibility are May, June and July (9km).
The month with the lowest visibility is January (4km).
