September weather forecastMercoal, Canada
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Mercoal, Canada, with temperature in the range of an average high of 16.5°C (61.7°F) and an average low of 4.5°C (40.1°F).Temperature
September's arrival coincides with a drop in the average high-temperature, decreasing from August's pleasant 22°C (71.6°F) to a comfortable 16.5°C (61.7°F). Mercoal experiences a drastic reduction from day temperatures to an average low of 4.5°C (40.1°F) in September.Humidity
In Mercoal, the average relative humidity in September is 70%.Rainfall
In Mercoal, in September, during 12.4 rainfall days, 40mm (1.57") of precipitation is typically accumulated. In Mercoal, during the entire year, the rain falls for 139.1 days and collects up to 487mm (19.17") of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1.7 snowfall days, it receives 35mm (1.38") of snow. Throughout the year, there are 125.5 snowfall days, and 1426mm (56.14") of snow is accumulated.Daylight
The average length of the day in September is 12h and 39min.On the first day of September, sunrise is at 6:59 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 7:26 pm MDT.
Sunshine
In Mercoal, the average sunshine in September is 7.9h.UV index
In Mercoal, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mercoal, Canada
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is December (-5.9°C).
- Average low temperature in September: 4.5°C
The month with the highest average low temperature is July (8.8°C).
The coldest month (with the lowest average low temperature) is February (-14.3°C).
Average pressure in September
Mercoal, Canada
- Average pressure in September: 1013.8mbar
The month with the highest atmospheric pressure is February (1019.2mbar).
The month with the lowest atmospheric pressure is June (1011.1mbar).
Average wind speed in September
Mercoal, Canada
- Average wind speed in September: 8km/h
The windiest months (with the highest average wind speed) are April and May (9.1km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).
Average humidity in September
Mercoal, Canada
- Average humidity in September: 70%
The months with the highest relative humidity are January and February (93%).
The months with the lowest relative humidity are May and August (66%).
Average rainfall in September
Mercoal, Canada
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is July (82mm).
The driest month (with the least rainfall) is December (21mm).
Average rainfall days in September
Mercoal, Canada
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is December (5 days).
Average snowfall in September
Mercoal, Canada
- Average snowfall in September: 35mm
The month with the highest snowfall is November (257mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Mercoal, Canada
- Average snowfall days in September: 1.7 days
The month with the highest number of snowfall days is March (21 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Mercoal, Canada
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Mercoal, Canada
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is April (5.5 days).
Average UV index in September
Mercoal, Canada
- 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, February and October (UV index 1).
Average cloud cover in September
Mercoal, Canada
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Mercoal, 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 February and March (5km).
