NYC Precipitation in May prediction

Central Park averages around four inches of rain in May. That single fact does most of the heavy lifting here — the two-to-three inch bracket is already fishing below average, and it needs everything to go just right to land. The bracket loses in two directions. A stubborn dry spell leaves the total short of two inches, while one decent late-May storm shoves it straight past three. That is a lot of exits for one very narrow lane. There are nineteen days of weather still unwritten, and we have zero visibility into how much has already fallen this month. Unknown accumulation plus no forecast data is not a reason to back this outcome — it is a reason to walk away from it. The resolution mechanics add a final twist: a reading that lands exactly on a boundary resolves to the higher bracket, not this one. Every structural edge here cuts against the two-to-three inch bet. Skip this bracket entirely — the historical sweet spot sits a full inch higher, and nothing in the setup makes a below-average May the smart call.