When are Canadians born? Month by month

Published by Birthday Traffic · September 15, 2026 · Sources and method

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• Septemberbusiest month per day1,061 births per day
• Julylargest total1,106,711 births
• 12,471,773live births1991–2024, 2024 preliminary
• May → Septemberbusiest month, first vs last decadedescriptive

Canada publishes live births by month of birth, so the Canadian pages rank months. Over 34 complete years, 1991–2024, and 12,471,773 live births, the busiest month per day is September at 105.6 of an average day and the quietest is December at 92.5. The whole seasonal swing is 13.2 points, far smaller than the weekday swing in daily U.S. data.

Month length first

A 31-day month has eleven per cent more days than a 28-day one. Every figure below divides by the true number of days that month held across the 34 years counted, leap days included, so 12,419 days in total.

The pattern is a broad late-spring-to-early-autumn rise. Ranked by births per day, the top three months are September, July, June, and the bottom three are December, January, November.

By raw total across the whole period July is largest at 1,106,711 births, but September is the busiest per day: 1,082,164 births across 1,020 counted days, 1060.9451 a day. A 31-day month collects more births by being longer, so every comparison on this page uses the per-day figure, with the raw total beside it.

Has the shape changed?

The first and last ten years of the series are compared below, each on its own index.

Between these two selected decades the busiest month per day changes: May leads 1991–2000 at 106.3261, while September leads 2015–2024 at 106.0663. The largest rise is November, 92.2909 to 97.4402, up 5.1492 points; the largest fall is April, 105.6710 to 99.4555, down 6.2155 points. For scale, the standard deviation of the twelve monthly index values across the whole period is 4.28 points.

That is a description of two decades chosen from this table. Both decades are inside the same published series, so the caveats on that series apply here too: 2024 is flagged preliminary in the table's own notes, and 2021 has a Nova Scotia coverage note, so the final decade leans on two years the publisher has qualified.

Annual totals, for context

The final year of the table, 2024, is marked preliminary in the table's own notes, and earlier years have been revised. Read the last bar as provisional.

Limits of a monthly table

• Months, so month ranks. Every figure here is a monthly figure.
• Place of residence of the mother. The selected series is "Canada, place of residence of mother". A birth to a Canadian-resident mother is counted here wherever it happened.
• 2024 is preliminary. The table's notes mark the latest year preliminary.
• Revisions and one known coverage gap. Statistics Canada states that previous years have been revised, and its notes record a Nova Scotia coverage issue affecting 2021. Those years are shown as published, with the caveat attached.
• Reconciliation. The published "Total, month of birth" row is excluded from every sum and used only as a check: each year's twelve monthly counts add up to that year's published total exactly, in all 34 years.
• Compared by shape. The index shape is discussed within Canada.

Check how rare a date is → · U.S. month ranking · Sources and method