Settlement stations / KDEN

US · America/Denver

Kalshi and Polymarket settle Denver temperature on KDEN

KDEN is Denver International, Denver. Kalshi and Polymarket 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.

This city settles on two different stations

Kalshi and Polymarket use KDEN (Denver International). IBKR ForecastEx settles the same city on KBKF (Buckley Space Force Base) instead. The two sites can report different temperatures at the same moment and land in different contract buckets on the same day, so a reading from one tells you nothing definitive about the other.

How it settles

VenueResolution sourceUnitBucketContracts
KalshiNWS Climatological Report (CLI), relayed by The Weather Company
Source code CLIDEN. 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
KXHIGHDEN, KXLOWTDEN
PolymarketRoutine METAR reports published by aviationweather.gov
Source code KDEN. 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-denver, lowest-temperature-in-denver

Reporting and delay

Regular reports:53:53 past each hour, UTC — 1 regular report per hour.
Median delay3 min 33 sFrom the observation time in the report to the public NOAA feed. 27 reports, measured 2026-09-17.
90th percentile7 min 12 sOne report in ten is at least this late. Worth knowing before you trust a quiet hour.
Coordinates39.847, -104.656Local civil time: America/Denver

Questions

Which weather station settles Denver temperature contracts?

Kalshi and Polymarket settle Denver on KDEN, Denver International. IBKR ForecastEx settles the same city on KBKF, Buckley Space Force Base, which is a different site.

What is the resolution source for Kalshi Denver 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 Denver 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.

When does KDEN report?

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

How long does a KDEN 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 33 s, with a 90th percentile of 7 min 12 s across 27 reports. This moves with upstream conditions and is not a service level.

KDEN is live on the free plan: sign in with Google, GitHub or email, no card. Open it on the board.

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 Denver 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.