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
A moderate decline in average high-temperatures is noted in September, moving from a moderately hot 23.4°C (74.1°F) in August to a refreshing 19.1°C (66.4°F). During the month of September, Joliette experiences a steady low-temperature average of 9.2°C (48.6°F).Humidity
In Joliette, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.4 days and typically collects 52mm (2.05") of precipitation.Snowfall
June through September are months without snowfall in Joliette.Daylight
The average length of the day in September is 12h and 32min.On the first day of September in Joliette, sunrise is at 6:15 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:35 pm EDT.
Sunshine
In September, the average sunshine in Joliette, Canada, is 8.5h.UV index
In September, the average daily maximum UV index in Joliette is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What are the temperatures in Joliette in September?
What is the average humidity in September in Joliette?
What is the driest month in Joliette?
How much does it rain in Joliette in September?
When it does not snow in Joliette?
Does it snow in Joliette in September?
What is the average length of the day in September in Joliette?
When are sunrise and sunset in September in Joliette?
How long on average sun shines in September in Joliette?
How high is the UV index in September in Joliette?
Average temperature in September
Joliette, Canada
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is July (24.5°C).
The month with the lowest average high temperature is January (-7.3°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is January (-14.9°C).
Average pressure in September
Joliette, Canada
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is March (1017.6mbar).
The month with the lowest atmospheric pressure is June (1012.2mbar).
Average wind speed in September
Joliette, Canada
- Average wind speed in September: 10.2km/h
The windiest month (with the highest average wind speed) is April (12.9km/h).
The calmest months (with the lowest average wind speed) are July and August (10km/h).
Average humidity in September
Joliette, Canada
- Average humidity in September: 79%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Joliette, Canada
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is April (82mm).
The driest month (with the least rainfall) is September (52mm).
Average rainfall days in September
Joliette, Canada
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Joliette, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (328mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Joliette, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Joliette, Canada
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).
Average sunshine days in September
Joliette, Canada
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (9.5 days).
Average UV index in September
Joliette, Canada
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Joliette, Canada
- Average cloud cover in September: 37
The months with the most cloud cover are January and February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Joliette, Canada
- Average visibility in September: 8km
The months with the highest visibility are May, June, July, August and October (9km).
The months with the lowest visibility are January, February and March (7km).
Joliette, Canada
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