September weather forecastMontebello, Canada
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Montebello, Canada, with temperature in the range of an average high of 20.2°C (68.4°F) and an average low of 10°C (50°F).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a warm 24°C (75.2°F) in August to a pleasant 20.2°C (68.4°F). An average low-temperature of 10°C (50°F) is observed during the September nights.Humidity
In Montebello, the average relative humidity in September is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 54mm (2.13") of precipitation.Snowfall
In Montebello, snow does not fall in June through September.Daylight
In Montebello, Canada, the average length of the day in September is 12h and 31min.On the first day of September in Montebello, sunrise is at 6:21 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:41 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index in Montebello, Canada, is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 3 in September transforms into this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Montebello, Canada
- Average high temperature in September: 20.2°C
The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (-14.5°C).
Average pressure in September
Montebello, Canada
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is March (1018mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in September
Montebello, Canada
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is April (14km/h).
The calmest month (with the lowest average wind speed) is July (9.8km/h).
Average humidity in September
Montebello, Canada
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Montebello, Canada
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is October (78mm).
The driest month (with the least rainfall) is September (54mm).
Average rainfall days in September
Montebello, Canada
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in September
Montebello, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (321mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Montebello, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Montebello, Canada
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in September
Montebello, Canada
- Average sunshine days in September: 15 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in September
Montebello, 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, November and December (UV index 1).
Average cloud cover in September
Montebello, Canada
- Average cloud cover in September: 37
The months with the most cloud cover are January and February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Montebello, Canada
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January and February (7km).
