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Ottawa enjoys 4 distinct seasons through the year. Average temperatures are:

Spring High: 51 F (11 C) Low: 32 F (0 C)
Summer High: 77 F (25 C) Low: 57 F (14 C)
Fall High: 55 F (13 C) Low: 38 F (3 C)
Winter High: 25 F (-4 C) Low: 9 F (-13 C)

The International Symposium for Recent Advances in Intrusion Detection (RAID) will be held in the fall.

Ottawa is located in the Eastern Standard Time (GMT - 5 hours) time zone. Daylight Savings Time begins at 2:00 a.m. on the second Sunday in March as clocks are switched forward one hour. It ends at 2:00 a.m. on the first Sunday in November, when clocks are switched back to Standard Time.

The Weather Network offers current and long-range forecasts for Ottawa, Ontario Canada.

Note: This website has been developed in Canada and as such, Canadian spelling rules have been applied throughout.
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