October weather forecastOttawa, Canada
October
Weather in October
October brings progressive cooling to Ottawa, with weather conditions taking further steps towards winter. The city observes an evident drop in temperatures from the previous month. However, it's during this month that Ottawa showcases an impressive fall color display, turning the city into a vivid canvas of burning reds and oranges. While the falling leaves denote the season's charm, the added chill in the air reveals winter's silent approach.Temperature
October is characterized by a clear drop in the average high-temperature, falling from September's pleasant 20.2°C (68.4°F) to a fresh 12.2°C (54°F). Ottawa throughout October, records an average low-temperature of 5°C (41°F).Humidity
In October, the average relative humidity is 81%.Rainfall
October is the month with the most rainfall. Rain falls for 15 days and accumulates 78mm (3.07") of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows in Ottawa, Canada. Throughout October, in the average 1.3 snowfall days, it receives 11mm (0.43") of snow. Throughout the year, in Ottawa, there are 83.3 snowfall days, and 1135mm (44.69") of snow is accumulated.Daylight
In Ottawa, the average length of the day in October is 10h and 56min.On the first day of the month, sunrise is at 7:01 am and sunset at 6:42 pm. On the last day of October, sunrise is at 7:41 am and sunset at 5:51 pm EDT.
Sunshine
In October, the average sunshine in Ottawa is 4.8h.UV index
The average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In October, a daily UV index of 2 turns into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Ottawa, Canada
- Average high temperature in October: 12.2°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 October: 5°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 October
Ottawa, Canada
- Average pressure in October: 1015.5mbar
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 October
Ottawa, Canada
- Average wind speed in October: 12.6km/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 October
Ottawa, Canada
- Average humidity in October: 81%
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 October
Ottawa, Canada
- Average rainfall in October: 78mm
The wettest month (with the highest rainfall) is October (78mm).
The driest month (with the least rainfall) is September (54mm).
Average rainfall days in October
Ottawa, Canada
- Average rainfall days in October: 15 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 October
Ottawa, Canada
- Average snowfall in October: 11mm
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 October
Ottawa, Canada
- Average snowfall days in October: 1.3 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 October /
Average sunshine in October
Ottawa, Canada
- Average daylight in October: 10h and 54min
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 October: 4h 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 October
Ottawa, Canada
- Average sunshine days in October: 14.3 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 October
Ottawa, Canada
- Average UV index in October: 2
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 October
Ottawa, Canada
- Average cloud cover in October: 49
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 October
Ottawa, Canada
- Average visibility in October: 9km
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).
