Settlement stations / KMIA

US · America/New_York

Kalshi, Polymarket, IBKR and Polymarket US settle Miami temperature on KMIA

KMIA is Miami International, Miami. Kalshi and Polymarket and IBKR ForecastEx and Polymarket US settle temperature contracts here. Below: the resolution source each venue names, when the station reports, and how long a reading takes to reach the public feed.

How it settles

VenueResolution sourceUnitBucketContracts
KalshiNWS Climatological Report (CLI), relayed by The Weather Company
Source code CLIMIA. The daily climatological report is compiled from the full one-minute record, so it can print a high that the hourly reports never showed. Its day runs in local standard time all year.		Fahrenheit2°F
Range contract		high · low
KXHIGHMIA, KXLOWTMIA
PolymarketRoutine METAR reports published by aviationweather.gov
Source code KMIA. Every report not marked SPECI counts, off-hour ones included, read from the T group in tenths of a degree Celsius and rounded half up to a whole degree of the contract. It is the same report stream shown here, so the running high tracks it directly.		Fahrenheit2°F
Range contract		high · low
highest-temperature-in-miami, lowest-temperature-in-miami
IBKR ForecastEx
Also sold through Robinhood: same ticker, same settlement.		Weather Underground daily history table for this station
Source code KMIA. That table carries hourly METARs and SPECIs only, over the local clock day, and prints whole degrees rounded.		Fahrenheit1°F ladder
Exceeds X, one rung per degree		high · low
UHMIA, ULMIA
Polymarket USNWS Climatological Report (CLI) for this station
Source code CLIMIA. The daily climatological report is compiled from the full one-minute record, so it can print a high that the hourly reports never showed. Its day runs in local standard time all year.		Fahrenheit2°F
Range contract		high
temp-miahigh

Reporting and delay

Regular reports:53:53 past each hour, UTC — 1 regular report per hour.
Median delay3 min 36 sFrom the observation time in the report to the public NOAA feed. 30 reports, measured 2026-09-17.
90th percentile5 min 10 sOne report in ten is at least this late. Worth knowing before you trust a quiet hour.
Coordinates25.788, -80.317Local civil time: America/New_York

Questions

Which weather station settles Miami temperature contracts?

Kalshi, Polymarket, IBKR ForecastEx and Polymarket US settle Miami on KMIA, Miami International.

What is the resolution source for Kalshi Miami temperature?

Kalshi names NWS Climatological Report (CLI), relayed by The Weather Company. Contracts settle in Fahrenheit, on 2-degree buckets. The daily climatological report is compiled from the full one-minute record, so it can print a high that the hourly reports never showed. Its day runs in local standard time all year.

What is the resolution source for Polymarket Miami temperature?

Polymarket names Routine METAR reports published by aviationweather.gov. Contracts settle in Fahrenheit, on 2-degree buckets. Every report not marked SPECI counts, off-hour ones included, read from the T group in tenths of a degree Celsius and rounded half up to a whole degree of the contract. It is the same report stream shown here, so the running high tracks it directly.

What is the resolution source for IBKR ForecastEx Miami temperature?

IBKR ForecastEx names Weather Underground daily history table for this station. Contracts settle in Fahrenheit, as a ladder of contracts one degree apart that pay when the day's reading passes the strike. That table carries hourly METARs and SPECIs only, over the local clock day, and prints whole degrees rounded. Robinhood resells this same contract, at the same ticker and settlement.

What is the resolution source for Polymarket US Miami temperature?

Polymarket US names NWS Climatological Report (CLI) for this station. Contracts settle in Fahrenheit, on 2-degree buckets. The daily climatological report is compiled from the full one-minute record, so it can print a high that the hourly reports never showed. Its day runs in local standard time all year.

When does KMIA report?

:53 past each hour, UTC — 1 regular report per hour.

How long does a KMIA observation take to become public?

Measured over 26 hours on 2026-09-17, the median delay from the observation time in the report to its arrival on the public NOAA feed was 3 min 36 s, with a 90th percentile of 5 min 10 s across 30 reports. This moves with upstream conditions and is not a service level.

KMIA is live on every paid plan. See the plans — from $9.90 a month, cancel from the account portal.

WeatherTick tracks 76 settlement stations and publishes each day's running high and low already converted into the unit and bucket the contract settles in. Open Miami on the board, or see every settlement station. Settlement always follows the resolution source named by the venue; the figures here are computed from the public feed and are not a settlement source.