TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 30, 11:59 PM EST
Kalshi
This event tracks whether Phoenix will experience consecutive days with average temperatures exceeding 90°F during a specific week. The focus is on identifying temperature patterns over multiple days to assess heat persistence. Outcomes depend on meeting or exceeding temperature thresholds across the defined period.
The event evaluates whether Phoenix records a specified number of consecutive days with daily average temperatures strictly above 90°F during the week of August 24–30, 2026. Each market corresponds to a different minimum streak length (2, 3, 4, 5, or 6+ days). A day’s average temperature is calculated as the mean of hourly readings from 12:00 AM to 11:59 PM local time, rounded to the nearest whole degree, using data from The Weather Company at the expiration time—later revisions are ignored. An average of exactly 90°F does not count, and any day with fewer than 18 hourly reports breaks the streak. Only days within the specified week contribute to consecutive counts, and all markets resolve based on these consistent data and validation rules.
Currently, this market implies a likelihood that reflects trader expectations for Phoenix's summer heat patterns. Those odds can diverge from analyst forecasts, which may incorporate climate models, historical averages, and regional weather trends. If new data emerges—such as an early heatwave or monsoon shift—the gap between market pricing and expert projections could widen or narrow. Monitoring both sources helps you spot potential mispricing or emerging consensus.
This market resolves around Sep 1, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, official temperature records from recognized meteorological sources for the Phoenix area will be examined for the week of August 24, 2026. The exact count of consecutive days above 90°F determines the final result, and no further interpretation is needed beyond publicly available data.
Between now and resolution, this market could shift based on medium- to long-range weather forecasts, sudden changes in atmospheric patterns, or early-season monsoon activity. Key signals include updated National Weather Service outlooks, anomalous high-pressure system developments, and any extreme heat advisories issued for the Phoenix region. Traders will also watch for unexpected shifts in climate indices that influence Southwest U.S. temperatures.