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
A mild shift in the average high-temperature occurs in September, reducing from a pleasant 21.5°C (70.7°F) in August to an enjoyable 17°C (62.6°F). Throughout September, Three Hills witnesses a nighttime temperature average of 6.2°C (43.2°F).Humidity
In Three Hills, the average relative humidity in September is 66%.Rainfall
In September, the rain falls for 10.9 days. Throughout September, 25mm (0.98") of precipitation is accumulated. In Three Hills, during the entire year, the rain falls for 117.1 days and collects up to 381mm (15") of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Three Hills. Throughout September, in the average 2.1 snowfall days, it receives 27mm (1.06") of snow. In Three Hills, during the entire year, snow falls for 80.8 days and aggregates up to 686mm (27.01") of snow.Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:18 pm. On the last day of September, in Three Hills, Canada, sunrise is at 7:33 am and sunset at 7:11 pm MDT.
Sunshine
In September, the average sunshine in Three Hills is 8.6h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Three Hills in September?
What is the average humidity in September in Three Hills?
How much does it rain in Three Hills in September?
When does it start to snow in Three Hills?
What is the average length of the day in September in Three Hills?
When are sunrise and sunset in September in Three Hills?
How long on average sun shines in September in Three Hills?
What is the UV index intensity in September in Three Hills?
Average temperature in September
Three Hills, Canada
- Average high temperature in September: 17°C
The warmest month (with the highest average high temperature) is August (21.5°C).
The month with the lowest average high temperature is December (-6.3°C).
- Average low temperature in September: 6.2°C
The month with the highest average low temperature is July (9.8°C).
The coldest month (with the lowest average low temperature) is February (-13.6°C).
Average pressure in September
Three Hills, Canada
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is February (1019.5mbar).
The month with the lowest atmospheric pressure is June (1010.4mbar).
Average wind speed in September
Three Hills, Canada
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is April (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Three Hills, Canada
- Average humidity in September: 66%
The months with the highest relative humidity are February and March (88%).
The month with the lowest relative humidity is May (64%).
Average rainfall in September
Three Hills, Canada
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is June (81mm).
The driest months (with the least rainfall) are February and December (11mm).
Average rainfall days in September
Three Hills, Canada
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is June (20.1 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in September
Three Hills, Canada
- Average snowfall in September: 27mm
The month with the highest snowfall is November (116mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Three Hills, Canada
- Average snowfall days in September: 2.1 days
The month with the highest number of snowfall days is February (14.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Three Hills, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Three Hills, Canada
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is June (7.2 days).
Average UV index in September
Three Hills, 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
Three Hills, Canada
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Three Hills, Canada
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April and December (8km).
