Will the highest temperature in Toronto be 9°C on April 12?

“Recent cold snaps at Toronto Pearson show temperatures well below the 11°C average — 3°C on April 9 and 0°C on April 7 — indicating a pattern of below-normal temperatures that could suppress the April 12 high into the 9°C range rather than the 11°C average.. The historical standard deviation places ~68% of April 12 highs between 8-14°C, meaning 9°C falls squarely within one standard deviation of the mean. It is not an outlier outcome but a plausible below-average day..”

“The market resolves on a SPECIFIC temperature bin (9°C), not a range. Even if the high is 8.6°C or 9.4°C, it may resolve differently depending on rounding conventions. The continuous nature of temperature measurement means the probability of landing exactly in the 9°C bin (vs. 8°C, 10°C, 11°C, etc.) is structurally low — roughly 1/N where N is the number of plausible bins (~10-15 bins across the plausible range), implying a base rate of ~7-10% per bin before any distributional weighting.. The bull's argument about recent cold snaps (3°C on April 9, 0°C on April 7) is a narrative fallacy. These are single-day observations with high variance and do not reliably predict April 12 conditions. Weather patterns shift over 3-5 days, and a cold snap on April 7-9 does not structurally constrain April 12 to be cold. The bull is anchoring on anecdotal recent data rather than the full distributional base rate..”