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
September shows a mild decline in the average high-temperature, falling from August's agreeable 22.4°C (72.3°F) to a refreshing 17.3°C (63.1°F). During September, the average low-temperature is a frosty 6.6°C (43.9°F).Humidity
In Dapp, the average relative humidity in September is 65%.Rainfall
In Dapp, in September, during 9.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated. Throughout the year, in Dapp, there are 108 rainfall days, and 338mm (13.31") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1.2 snowfall days, it receives 18mm (0.71") of snow. In Dapp, during the entire year, snow falls for 72.7 days and aggregates up to 539mm (21.22") of snow.Daylight
The average length of the day in September in Dapp is 12h and 41min.On the first day of September in Dapp, sunrise is at 6:44 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:13 pm MDT.
Sunshine
In Dapp, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Dapp?
What is the average humidity in September in Dapp?
How many days does it rain in September in Dapp?
When does it start to snow in Dapp?
How many hours of daylight does Dapp have in September?
When are sunrise and sunset in September in Dapp?
How long on average sun shines in September in Dapp?
How high is the UV index in September in Dapp?
Average temperature in September
Dapp, Canada
- Average high temperature in September: 17.3°C
The warmest month (with the highest average high temperature) is July (22.6°C).
The month with the lowest average high temperature is December (-7.3°C).
- Average low temperature in September: 6.6°C
The month with the highest average low temperature is July (11.3°C).
The coldest month (with the lowest average low temperature) is February (-15.1°C).
Average pressure in September
Dapp, Canada
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is February (1020.1mbar).
The month with the lowest atmospheric pressure is June (1010.2mbar).
Average wind speed in September
Dapp, Canada
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is April (13.1km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Dapp, Canada
- Average humidity in September: 65%
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is May (60%).
Average rainfall in September
Dapp, Canada
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is June (74mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in September
Dapp, Canada
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in September
Dapp, Canada
- Average snowfall in September: 18mm
The month with the highest snowfall is November (90mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Dapp, Canada
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Dapp, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Dapp, Canada
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (8.8 days).
Average UV index in September
Dapp, 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 March (UV index 1).
Average cloud cover in September
Dapp, Canada
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Dapp, Canada
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February and March (7km).
