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
September signals a slight drop in average high-temperature, sliding from August's warm 25.1°C (77.2°F) to an agreeable 21.6°C (70.9°F). Throughout September, Stamford records an average temperature of 15.1°C (59.2°F) at night.Humidity
August and September, with an average relative humidity of 74%, are the least humid months.Rainfall
September is the month with the least rainfall in Stamford, Canada. Rain falls for 13.7 days and accumulates 47mm (1.85") of precipitation.Snowfall
In Stamford, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:50 pm. On the last day of September, in Stamford, sunrise is at 7:13 am and sunset at 6:58 pm EDT.
Sunshine
The average sunshine in September in Stamford is 9.3h.UV index
In September, the average daily maximum UV index in Stamford is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the temperature in September in Stamford?
What is the least humid month in Stamford?
What is the average humidity in September in Stamford?
What is the driest month in Stamford?
How many days does it rain in September in Stamford?
When it does not snow in Stamford?
Does it snow in Stamford in September?
How many hours of daylight does Stamford have in September?
When are sunrise and sunset in September in Stamford?
How long on average sun shines in September in Stamford?
What is the UV index reading in September in Stamford?
Average temperature in September
Stamford, Canada
- Average high temperature in September: 21.6°C
The warmest month (with the highest average high temperature) is July (25.6°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in September: 15.1°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is January (-6.4°C).
Average pressure in September
Stamford, Canada
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is November (1018.6mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in September
Stamford, Canada
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is January (19.8km/h).
The calmest month (with the lowest average wind speed) is July (11.5km/h).
Average humidity in September
Stamford, Canada
- Average humidity in September: 74%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in September
Stamford, Canada
- Average rainfall in September: 47mm
The wettest month (with the highest rainfall) is July (79mm).
The driest month (with the least rainfall) is September (47mm).
Average rainfall days in September
Stamford, Canada
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Stamford, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (181mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Stamford, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stamford, Canada
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Stamford, Canada
- Average sunshine days in September: 14 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in September
Stamford, Canada
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Stamford, Canada
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Stamford, Canada
- Average visibility in September: 10km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January and February (8km).
Stamford, Canada
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