October weather forecastWaterloo, Canada
October
Weather in October
October in Waterloo can be described as a truly autumn month. The transition from the warmth of September to the chillier winter months becomes more apparent as the temperatures continue to drop. A steady reduction in sunlight hours signals shorter days ahead. With the city enveloped in a blanket of autumn colors, October in Waterloo is a spectacle to behold. As the end of October approaches, conditions become colder, preparing the city for winter.Temperature
The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from an agreeable 20.8°C (69.4°F) in September to a mild 13.3°C (55.9°F). Throughout the month of October, the average temperature in Waterloo dips to a cold 5.6°C (42.1°F) at night.Humidity
In Waterloo, the average relative humidity in October is 82%.Rainfall
October is the month with the most rainfall. Rain falls for 17 days and accumulates 71mm (2.8") of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 1.5 snowfall days, it receives 11mm (0.43") of snow. Throughout the year, in Waterloo, Canada, there are 80.1 snowfall days, and 666mm (26.22") of snow is accumulated.Daylight
In Waterloo, the average length of the day in October is 11h and 1min.On the first day of the month, sunrise is at 7:20 am and sunset at 7:02 pm. On the last day of October, in Waterloo, Canada, sunrise is at 7:57 am and sunset at 6:14 pm EDT.
Sunshine
In October, the average sunshine is 4.5h.UV index
The average daily maximum UV index in October in Waterloo is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 2 during October translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Waterloo, Canada
- Average high temperature in October: 13.3°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 October: 5.6°C
The month with the highest average low temperature is July (15°C).
The coldest month (with the lowest average low temperature) is January (-9.3°C).
Average pressure in October
Waterloo, Canada
- Average pressure in October: 1015.5mbar
The month with the highest atmospheric pressure is March (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in October
Waterloo, Canada
- Average wind speed in October: 15km/h
The windiest month (with the highest average wind speed) is January (18.1km/h).
The calmest month (with the lowest average wind speed) is July (11km/h).
Average humidity in October
Waterloo, Canada
- Average humidity in October: 82%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in October
Waterloo, Canada
- Average rainfall in October: 71mm
The wettest month (with the highest rainfall) is October (71mm).
The driest month (with the least rainfall) is September (37mm).
Average rainfall days in October
Waterloo, Canada
- Average rainfall days in October: 17 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in October
Waterloo, Canada
- Average snowfall in October: 11mm
The month with the highest snowfall is February (164mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in October
Waterloo, Canada
- Average snowfall days in October: 1.5 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Waterloo, Canada
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in October: 4h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in October
Waterloo, Canada
- Average sunshine days in October: 11.6 days
The month with the most sunshine days is September (13.9 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in October
Waterloo, Canada
- Average UV index in October: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in October
Waterloo, Canada
- Average cloud cover in October: 53
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in October
Waterloo, Canada
- Average visibility in October: 9km
The months with the highest visibility are April, May, June, July and October (9km).
The month with the lowest visibility is January (7km).





