September weather forecastSaint-Jérôme, Canada
September
Weather in September
September, the first month of the autumn in Saint-Jérôme, is also an enjoyable month, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 19.4°C (66.9°F).Temperature
In September, the average high-temperature marginally drops from a warm 23.2°C (73.8°F) in August to an enjoyable 19.4°C (66.9°F). In Saint-Jérôme, in September, the average low-temperature is a chilly 9.7°C (49.5°F).Humidity
In Saint-Jérôme, the average relative humidity in September is 80%.Rainfall
The months with the least rainfall are September and November Rain falls for 12.4 days and accumulates 55mm (2.17") of rain.Snowfall
In Saint-Jérôme, snow does not fall in June through September.Daylight
In Saint-Jérôme, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:33 pm. On the last day of September, in Saint-Jérôme, sunrise is at 6:53 am and sunset at 6:37 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 3 translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint-Jérôme, Canada
- Average high temperature in September: 19.4°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-6.8°C).
- Average low temperature in September: 9.7°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 (-14.2°C).
Average pressure in September
Saint-Jérôme, Canada
- Average pressure in September: 1017mbar
The months with the highest atmospheric pressure are March and November (1017.7mbar).
The month with the lowest atmospheric pressure is June (1012.3mbar).
Average wind speed in September
Saint-Jérôme, Canada
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is April (14km/h).
The calmest months (with the lowest average wind speed) are July and August (10.4km/h).
Average humidity in September
Saint-Jérôme, Canada
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Saint-Jérôme, Canada
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is October (80mm).
The driest months (with the least rainfall) are September and November (55mm).
Average rainfall days in September
Saint-Jérôme, Canada
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (18.2 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in September
Saint-Jérôme, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (282mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Saint-Jérôme, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint-Jérôme, Canada
- Average daylight in September: 12h and 30min
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 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in September
Saint-Jérôme, Canada
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in September
Saint-Jérôme, 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, November and December (UV index 1).
Average cloud cover in September
Saint-Jérôme, Canada
- Average cloud cover in September: 37
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Saint-Jérôme, Canada
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and October (9km).
The months with the lowest visibility are January and February (7km).
