September weather forecastRockglen, Canada
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Rockglen, Canada, with an average temperature varying between 11.3°C (52.3°F) and 21.1°C (70°F).Temperature
September involves a decrease in temperature, down from a moderately hot 27.4°C (81.3°F) in August to a pleasant 21.1°C (70°F). Rockglen's average low-temperature for the month of September records at a cool 11.3°C (52.3°F).Humidity
In September, the average relative humidity is 50%.Rainfall
In Rockglen, in September, during 8.6 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Rockglen, during the entire year, the rain falls for 93.3 days and collects up to 305mm (12.01") of precipitation.Snowfall
In Rockglen, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 35min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:43 pm CST.
Sunshine
In Rockglen, the average sunshine in September is 9.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise prevention - Warding off sunburn is urged. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rockglen, Canada
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is July (27.8°C).
The month with the lowest average high temperature is February (-6.8°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is July (16.1°C).
The coldest month (with the lowest average low temperature) is February (-14.3°C).
Average pressure in September
Rockglen, Canada
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is February (1021.6mbar).
The month with the lowest atmospheric pressure is June (1010.2mbar).
Average wind speed in September
Rockglen, Canada
- Average wind speed in September: 16.4km/h
The windiest month (with the highest average wind speed) is April (17.8km/h).
The calmest month (with the lowest average wind speed) is February (14.8km/h).
Average humidity in September
Rockglen, Canada
- Average humidity in September: 50%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Rockglen, Canada
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is June (55mm).
The driest month (with the least rainfall) is February (12mm).
Average rainfall days in September
Rockglen, Canada
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Rockglen, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is November (95mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rockglen, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rockglen, Canada
- Average daylight in September: 12h and 36min
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: 9h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Rockglen, Canada
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are February and June (13.8 days).
Average UV index in September
Rockglen, Canada
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Rockglen, Canada
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 19).
Average visibility in September
Rockglen, Canada
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March and December (8km).
