Settlement stations / KPHX

US · America/Phoenix

Kalshi and IBKR settle Phoenix temperature on KPHX

KPHX is Sky Harbor International, Phoenix. Kalshi and IBKR ForecastEx 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 CLIPHX. 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
KXHIGHTPHX, KXLOWTPHX
IBKR ForecastEx
Also sold through Robinhood: same ticker, same settlement.		Weather Underground daily history table for this station
Source code KPHX. 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
UHPHX, ULPHX

Reporting and delay

Regular reports:51:51 past each hour, UTC — 1 regular report per hour.
Median delay3 min 10 sFrom the observation time in the report to the public NOAA feed. 33 reports, measured 2026-09-17.
90th percentile4 min 13 sOne report in ten is at least this late. Worth knowing before you trust a quiet hour.
Coordinates33.428, -112.004Local civil time: America/Phoenix

Questions

Which weather station settles Phoenix temperature contracts?

Kalshi and IBKR ForecastEx settle Phoenix on KPHX, Sky Harbor International.

What is the resolution source for Kalshi Phoenix 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 IBKR ForecastEx Phoenix 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.

When does KPHX report?

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

How long does a KPHX 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 10 s, with a 90th percentile of 4 min 13 s across 33 reports. This moves with upstream conditions and is not a service level.

KPHX 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 Phoenix 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.