This market asks whether Austin's daily high temperature will remain at or below 71°F on May 19, 2026—a date marking the tail end of spring and the cusp of summer. The 1% YES odds reflect the exceptional rarity of such cool conditions for mid-May in Austin. Historically, Austin's average high in mid-May ranges from 85–92°F, making a maximum of 71°F or below roughly 15–20 degrees below seasonal norm. Such weather would require an unusual atmospheric setup: an abnormally strong cold front, persistent cloud cover, or a rare late-season Arctic intrusion. The current market pricing heavily favors NO (99%), suggesting traders view this outcome as nearly impossible given typical May weather patterns. This is a calendar-based daily temperature market that resolves definitively based on official NOAA or National Weather Service high-temperature readings for Austin. The thin liquidity ($2,862) and minimal recent volume ($5 in 24 hours) indicate sparse trader interest—likely because the outcome feels predetermined. Bettors monitoring this would be watching extended-range forecasts for any sign of unusual upper-atmosphere disturbances that could bring cooler air to central Texas.
Deep dive — what moves this market
Austin's climate during May is characterized by rapidly warming spring conditions as the region transitions from late spring into early summer. The historical data for May temperatures in Austin shows that days with highs below 75°F occur roughly 5–10% of the time in early May, dropping to less than 1–2% by mid-to-late May as the seasonal warming accelerates. A high of 71°F or below would rank among the coolest May days on record, comparable to events that happen only once every several years—if not once per decade. For such extreme coolness to occur on May 19, several meteorological conditions would need to align: a powerful springtime cold front would have to push through central Texas with unusual intensity, coupled with persistent cloud cover to prevent solar warming and perhaps moisture in the upper atmosphere to amplify the cooling effect. Historical parallels include the May 2020 cold snap when central Texas saw unseasonably cool temperatures, but even those events typically only brought highs into the mid-to-upper 70s, rarely below 71°F in Austin proper. The broader atmospheric pattern would need to show a deep trough in the upper-level flow over North America, steering Arctic air southward at an unusual time of year. Most spring weather systems moderate in intensity by mid-May because the sun angle is already high and sea-surface temperatures have warmed considerably, both factors that resist dramatic cooling events. Traders currently pricing this at 1% YES are essentially reflecting decades of climatological data: sub-71°F highs in mid-May Austin are extraordinarily rare and would mark a notable meteorological event worthy of news coverage. The current price also suggests that extended-range forecasts available to traders showed no sign of such a pattern developing. Any potential YES outcome would hinge on an unexpected shift in the jet stream or an unusual atmospheric configuration that forecasters had not yet captured. The 99% NO odds indicate near-certainty that temperatures will exceed 71°F, a judgment that aligns with both historical frequency and real-time forecast guidance available through National Weather Service products.
What traders watch for
NOAA high-temperature reading for Austin on May 19, released by 6 PM CT local time.
Upper-level jet-stream maps May 18–19 for cold-front positioning or Arctic air intrusion.
Extended-range forecasts (8–10 day outlook) released May 11–13 for unusual summer pattern disruption.
Overnight lows May 18–19: sub-60°F readings signal anomalous cool-air mass into Texas.
Cloud-cover persistence on May 19 — overcast skies block solar warming and suppress highs.
How does this market resolve?
Market resolves on May 19, 2026 at 00:00 UTC based on the National Weather Service official high-temperature reading for Austin, Texas. Outcome is YES if the high temperature is 71°F or below; NO if it exceeds 71°F.
Prediction markets aggregate trader expectations into real-time probability estimates. On Polymarket Trade, every market question resolves YES or NO based on a specific event outcome; traders buy shares of the side they believe will resolve positively. Prices range 0¢ (certain no) to 100¢ (certain yes) and naturally reflect the crowd-implied probability of YES. This page summarizes the market state for readers arriving from search; for live trading (place orders, see order book depth, execute a trade) open the full interactive page linked above.
