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
Weather in September
Temperature
September weather is marked by a drop in the average high-temperature, falling from a pleasant 22°C (71.6°F) in August to an enjoyable 16.4°C (61.5°F). Throughout September nights, Grande Prairie experiences a consistent temperature average of 6°C (42.8°F).Humidity
In September, the average relative humidity in Grande Prairie is 68%.Rainfall
In Grande Prairie, during September, the rain falls for 11.9 days and regularly aggregates up to 27mm (1.06") of precipitation. In Grande Prairie, during the entire year, the rain falls for 129.6 days and collects up to 424mm (16.69") of precipitation.Snowfall
January through June, September through December are months with snowfall in Grande Prairie, Canada. September is the first month it typically snows in Grande Prairie. Throughout September, in the average 1.2 snowfall days, it receives 12mm (0.47") of snow. Throughout the year, there are 104.7 snowfall days, and 1154mm (45.43") of snow is accumulated.Daylight
In September, the average length of the day is 12h and 42min.On the first day of the month, sunrise is at 7:02 am and sunset at 8:46 pm. On the last day of September, in Grande Prairie, sunrise is at 7:57 am and sunset at 7:32 pm MDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
The average daily maximum UV index in September in Grande Prairie is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the average September temperature in Grande Prairie?
What is the average humidity in September in Grande Prairie?
How many days does it rain in September in Grande Prairie?
When does it start to snow in Grande Prairie?
What is the average length of the day in September in Grande Prairie?
When is the sunrise / sunset in September in Grande Prairie?
How long on average sun shines in September in Grande Prairie?
What is the UV index reading in September in Grande Prairie?
Average temperature in September
Grande Prairie, Canada
- Average high temperature in September: 16.4°C
The warmest month (with the highest average high temperature) is July (22.8°C).
The month with the lowest average high temperature is December (-7.2°C).
- Average low temperature in September: 6°C
The month with the highest average low temperature is July (10.1°C).
The coldest month (with the lowest average low temperature) is February (-13.7°C).
Average pressure in September
Grande Prairie, Canada
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is February (1019.3mbar).
The month with the lowest atmospheric pressure is June (1010.9mbar).
Average wind speed in September
Grande Prairie, Canada
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is May (10.4km/h).
The calmest months (with the lowest average wind speed) are February and March (8.6km/h).
Average humidity in September
Grande Prairie, Canada
- Average humidity in September: 68%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (60%).
Average rainfall in September
Grande Prairie, Canada
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is July (67mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days in September
Grande Prairie, Canada
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in September
Grande Prairie, Canada
- Average snowfall in September: 12mm
The month with the highest snowfall is November (220mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Grande Prairie, Canada
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is March (17.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Grande Prairie, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 7h and 5min
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 36min).
Average sunshine days in September
Grande Prairie, Canada
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is April (8.9 days).
Average UV index in September
Grande Prairie, 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 and February (UV index 1).
Average cloud cover in September
Grande Prairie, Canada
- Average cloud cover in September: 36
The month with the most cloud cover is March (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Grande Prairie, Canada
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are February and March (5km).
Grande Prairie, Canada
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