Definition
Historical frequency is the most fundamental metric in lottery analysis. For each of the 49 numbers in the Lotto 6/49 pool, we count how many official draws that number has appeared in as one of the six main numbers. This raw count is then expressed as a percentage of total draws. With over 4,000 official draws in the dataset since 1982, the frequency data provides a statistically robust sample for analysis.
Why It Matters
Frequency data is the foundation for nearly all other lottery metrics. Hot numbers are those with above-average frequency. Cold numbers are those with below-average frequency. Frequency informs the Smart Generator algorithms, shapes recency weighting models, and provides the base data for trend analysis.
The expected frequency for any single number in Lotto 6/49 is approximately 12.24% (6 ÷ 49 × 100). Deviations from this expected value are the natural result of random variance in a finite sample. Over infinite draws, all frequencies would converge to 12.24% — but in any finite sample (even 4,000+ draws), observable deviations are expected and normal.
Frequency Windows
On DrawInsights result pages, you can filter frequency by different time windows: All Time, Last 2 Years, Last 1 Year, Last 300 Draws, or Last 100 Draws. Shorter windows show more recent trends but have higher variance. Longer windows are more stable but may mask recent shifts. The "All Time" window provides the most statistically reliable data, while shorter windows help identify emerging patterns.
How It Is Calculated
For each number n (1–49): frequency(n) = count of draws containing n ÷ total draws × 100. We use only official draws verified against WCLC and BCLC records. Generated or synthetic data is excluded. The full frequency table is available on our frequency chart page.
Common Misconceptions
"High frequency means high probability." Past frequency does not equal future probability. The draw mechanism is uniformly random. What frequency tells you is how the random process has played out historically — useful context, but not a crystal ball.
Practical Example
Number 31: drawn 576 times in 4,389 draws = 13.12%. Number 43: drawn 498 times = 11.35%. Number 31 is above the expected 12.24% (hot), while 43 is below (cold). The difference of ~78 appearances is meaningful statistically but irrelevant to the next individual draw.
Limitations
Frequency is a backward-looking measure. It is the most important single metric for understanding lottery history, but it has zero predictive power for any individual future draw. Use it as context and structure for selection, not as a forecasting tool.
Frequently Asked Questions
What is historical frequency in Lotto 6/49?
It is the count of how many times each number (1–49) has been drawn across the complete history of official Lotto 6/49 draws, expressed as a raw count and percentage.
Can I filter frequency by time period?
Yes. On DrawInsights result pages, you can filter frequency by All Time, Last 2 Years, Last 1 Year, Last 300 Draws, or Last 100 Draws.
Is historical frequency the same as probability?
No. Historical frequency describes what has happened. Probability describes what could happen. Each number has an equal 1-in-49 probability in every draw regardless of its historical frequency.
How is frequency data sourced?
DrawInsights uses official draw data from the Western Canada Lottery Corporation (WCLC) and BC Lottery Corporation (BCLC), verified against published results.