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 sees a slight reduction in average high-temperature, with a shift from a moderately hot 23.8°C (74.8°F) in August to an agreeable 20.5°C (68.9°F). Peterborough, during the month of September, experiences an average low-temperature of 11.7°C (53.1°F).Humidity
The average relative humidity in September in Peterborough is 77%.Rainfall
In Peterborough, during September, the rain falls for 13.8 days and regularly aggregates up to 45mm (1.77") of precipitation. In Peterborough, Canada, during the entire year, the rain falls for 143.9 days and collects up to 609mm (23.98") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Peterborough, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:49 pm. On the last day of September, in Peterborough, Canada, sunrise is at 7:10 am and sunset at 6:55 pm EDT.
Sunshine
In Peterborough, the average sunshine in September is 9.4h.UV index
In Peterborough, the average daily maximum UV index in September 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: A daily high UV index of 4 in September leads to these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the average September temperature in Peterborough?
What is the average humidity in September in Peterborough?
How many days does it rain in September in Peterborough?
When it does not snow in Peterborough?
Does it snow in Peterborough in September?
What is the average length of the day in September in Peterborough?
When is the sunrise / sunset in September in Peterborough?
How long on average sun shines in September in Peterborough?
What is the UV index intensity in September in Peterborough?
Average temperature in September
Peterborough, Canada
- Average high temperature in September: 20.5°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-3.7°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is January (-10.3°C).
Average pressure in September
Peterborough, Canada
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is March (1018.2mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).
Average wind speed in September
Peterborough, Canada
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is January (16.2km/h).
The calmest month (with the lowest average wind speed) is July (10.6km/h).
Average humidity in September
Peterborough, Canada
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Peterborough, Canada
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is October (69mm).
The driest month (with the least rainfall) is February (31mm).
Average rainfall days in September
Peterborough, Canada
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Peterborough, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (122mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Peterborough, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Peterborough, Canada
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Peterborough, Canada
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is March (17.2 days).
The month with the least sunshine days is August (10.1 days).
Average UV index in September
Peterborough, Canada
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Peterborough, Canada
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Peterborough, Canada
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
Peterborough, Canada
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