September weather forecastDemmitt, Canada
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Demmitt, Canada, with an average temperature fluctuating between 15.4°C (59.7°F) and 4.9°C (40.8°F).Temperature
The shift from August to September involves a decrease in the average high-temperature, dropping from a pleasant 21.2°C (70.2°F) to a mild 15.4°C (59.7°F). Demmitt reports a consistent average low-temperature of 4.9°C (40.8°F) throughout September nights.Humidity
The average relative humidity in September is 69%.Rainfall
In Demmitt, in September, during 12.8 rainfall days, 26mm (1.02") of precipitation is typically accumulated. In Demmitt, during the entire year, the rain falls for 123 days and collects up to 426mm (16.77") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1.4 snowfall days, it receives 13mm (0.51") of snow. In Demmitt, during the entire year, snow falls for 112.5 days and aggregates up to 1271mm (50.04") of snow.Daylight
The average length of the day in September is 12h and 42min.On the first day of September, sunrise is at 7:06 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 7:36 pm MDT.
Sunshine
In Demmitt, the average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Demmitt, Canada
- Average high temperature in September: 15.4°C
The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is December (-7.9°C).
- Average low temperature in September: 4.9°C
The month with the highest average low temperature is July (9.3°C).
The coldest months (with the lowest average low temperature) are February and December (-14.8°C).
Average pressure in September
Demmitt, Canada
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is February (1019.3mbar).
The month with the lowest atmospheric pressure is June (1010.8mbar).
Average wind speed in September
Demmitt, Canada
- Average wind speed in September: 10.2km/h
The windiest months (with the highest average wind speed) are June and September (10.2km/h).
The calmest months (with the lowest average wind speed) are February, March and December (8.6km/h).
Average humidity in September
Demmitt, Canada
- Average humidity in September: 69%
The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is May (61%).
Average rainfall in September
Demmitt, Canada
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is July (62mm).
The driest month (with the least rainfall) is February (17mm).
Average rainfall days in September
Demmitt, Canada
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in September
Demmitt, Canada
- Average snowfall in September: 13mm
The month with the highest snowfall is November (234mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Demmitt, Canada
- Average snowfall days in September: 1.4 days
The month with the highest number of snowfall days is March (19.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Demmitt, Canada
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Demmitt, Canada
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is August (16.3 days).
The month with the least sunshine days is April (6.9 days).
Average UV index in September
Demmitt, 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, March and October (UV index 1).
Average cloud cover in September
Demmitt, 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 31).
Average visibility in September
Demmitt, 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 January, February and March (5km).
