September weather forecastDease Lake, Canada
September
Weather in September
The first month of the autumn, September, is still a chilly month in Dease Lake, Canada, with temperature in the range of an average low of 1.3°C (34.3°F) and an average high of 9.6°C (49.3°F).Temperature
The decrease of average high-temperatures is mild in September, with a decline from a refreshing 14.8°C (58.6°F) in August to a chilly 9.6°C (49.3°F). Throughout September, Dease Lake anticipates an average low-temperature of 1.3°C (34.3°F).Humidity
The average relative humidity in September in Dease Lake is 76%.Rainfall
In September, in Dease Lake, Canada, the rain falls for 14.5 days. Throughout September, 26mm (1.02") of precipitation is accumulated. In Dease Lake, during the entire year, the rain falls for 115.5 days and collects up to 264mm (10.39") of precipitation.Snowfall
Months with snowfall are January through May, August through December. In Dease Lake, in September, snow falls for 2.6 days, with typically accumulated 15mm (0.59") of snow. In Dease Lake, during the entire year, snow falls for 111.9 days and aggregates up to 855mm (33.66") of snow.Daylight
The average length of the day in September in Dease Lake is 12h and 47min.On the first day of the month, sunrise is at 6:40 am and sunset at 8:38 pm. On the last day of September, sunrise is at 7:44 am and sunset at 7:15 pm PDT.
Sunshine
In Dease Lake, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 2 in September translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dease Lake, Canada
- Average high temperature in September: 9.6°C
The warmest month (with the highest average high temperature) is July (16.4°C).
The month with the lowest average high temperature is December (-10.5°C).
- Average low temperature in September: 1.3°C
The month with the highest average low temperature is July (5.3°C).
The coldest month (with the lowest average low temperature) is February (-17.3°C).
Average pressure in September
Dease Lake, Canada
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is February (1018mbar).
The month with the lowest atmospheric pressure is June (1012.7mbar).
Average wind speed in September
Dease Lake, Canada
- Average wind speed in September: 9.9km/h
The windiest months (with the highest average wind speed) are January and June (10.3km/h).
The calmest month (with the lowest average wind speed) is February (8.8km/h).
Average humidity in September
Dease Lake, Canada
- Average humidity in September: 76%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is June (62%).
Average rainfall in September
Dease Lake, Canada
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is August (40mm).
The driest month (with the least rainfall) is February (9mm).
Average rainfall days in September
Dease Lake, Canada
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is August (15.3 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in September
Dease Lake, Canada
- Average snowfall in September: 15mm
The month with the highest snowfall is November (195mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in September
Dease Lake, Canada
- Average snowfall days in September: 2.6 days
The month with the highest number of snowfall days is November (17.9 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in September /
Average sunshine in September
Dease Lake, Canada
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Dease Lake, Canada
- Average sunshine days in September: 12.7 days
The months with the most sunshine days are May and December (16.1 days).
The month with the least sunshine days is April (12.2 days).
Average UV index in September
Dease Lake, Canada
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, March and November (UV index 1).
Average cloud cover in September
Dease Lake, Canada
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 38).
Average visibility in September
Dease Lake, 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 and December (7km).
