How the Phoenix high-temperature market settles

Kalshi's Phoenix market settles on the daily high at Sky Harbor (KPHX), as the climate report CLIPHX and The Weather Company publish it. Series KXHIGHTPHX, listed since Feb 4, 2026.

Updated Oct 30, 3:21 AM MST: newest final official high is for Thu, Oct 29.

Today in Phoenix

The settlement station

Phoenix Sky Harbor International Airport

Station
KPHX
Report code
CLIPHX
NWS office
PSR
Time zone
America/Phoenix

Phoenix keeps standard time all year, so its settlement day is midnight to midnight on the local clock, summer and winter.

Source: Kalshi contract terms; NWS climate report CLIPHX

Today's window (Sat, Oct 31)

12:00 AM Oct 31 to 12:00 AM Nov 1 MST

Midnight to midnight MST, local standard time.

Opened
Oct 30, 10:00 AM EDT
Closes
Nov 1, 12:00 AM MST
Usually settles
around 7:12 AM
median 7.2 h after close, 77 settled days

Today's six brackets, in whole degrees

  • 75° or below
  • 76° to 77°
  • 78° to 79°
  • 80° to 81°
  • 82° to 83°
  • 84° or above

The window for any city and date

How Phoenix settled, day by day

Since Aug 14, 2026, 7 of 77 days (9%) settled on a tail bracket: 4 below the bottom bracket and 3 above the top one. In the last 30 days: 3 of 30.

DaySettled onWinning bracket
Thu, Oct 2985°84° to 85°
Wed, Oct 2884°84° to 85°
Tue, Oct 2787°87° to 88°
Mon, Oct 2686°85° to 86°
Sun, Oct 2583°82° to 83°
Sat, Oct 2477°77° to 78°
Fri, Oct 2382°81° to 82°
Thu, Oct 2289°87° or abovetop tail
Wed, Oct 2192°92° or abovetop tail
Tue, Oct 2093°92° to 93°
Mon, Oct 1991°90° to 91°
Sun, Oct 1884°83° to 84°
Sat, Oct 1780°79° to 80°
Fri, Oct 1687°86° to 87°
Thu, Oct 1588°88° to 89°
Wed, Oct 1478°77° to 78°
Tue, Oct 1378°77° to 78°
Mon, Oct 1283°82° to 83°
Sun, Oct 1189°89° to 90°
Sat, Oct 1096°95° to 96°
Fri, Oct 9104°103° to 104°
Thu, Oct 8104°104° to 105°
Wed, Oct 7102°101° to 102°
Tue, Oct 698°97° to 98°
Mon, Oct 598°97° to 98°
Sun, Oct 499°99° to 100°
Sat, Oct 397°97° to 98°
Fri, Oct 297°97° to 98°
Thu, Oct 195°93° or abovetop tail
Wed, Sep 3086°85° to 86°

Source: Each market's result, settlement value and time: Kalshi's public market data; Time of the high: NWS climate reports for KPHX, via IEM

When the high happens at Sky Harbor

Over 363 days (Oct 30, 2025 to Oct 29, 2026), the median time of the official high was 4:03 PM local standard time, and half the highs came between 3:23 PM and 4:40 PM. Over the last 60 days the median was 3:40 PM.

Sky Harbor's high came before 1 AM standard time on 1 of 363 days (0%): the climate day's warmest minutes were its first.

  • Midnight to 1 AM0%
  • 1 to 6 AM1%
  • 6 AM to noon1%
  • Noon to 3 PM14%
  • 3 to 6 PM82%
  • 6 PM to midnight2%

KPHX report times, standard time. 1 without a time (MM) left out.

Source: NWS climate reports for KPHX, via IEM; IEM table of NWS climate reports

Did the afternoon report's high hold?

On 179 days from May 1, 2026 to Oct 29, 2026, the NWS's afternoon preliminary report (usually "as of 5 PM" local time) had the same high as the final report on 174 of 179 days (97%). The final report came in higher on 5 and never lower.

Every one of those 5 higher finals put the high after the 5 PM cutoff.

Source: Every NWS climate report issued for KPHX (CLIPHX), via IEM's text archive

Records and normals at Sky Harbor

The normal high for Oct 31 is 83°F and the record high is 96°F. The normal falls to 70°F by Nov 30.

Against the normal
+4.5°F on average
above on 271, below on 78 of 364 days
Warmest and coolest
117° and 60°
117° on Jul 24, 2026; 60° on Jan 7, 2026
Record highs set or tied
32 days
Aug 26 117°, Aug 25 115°, Aug 22 115°, …

364 final highs at KPHX, Oct 30, 2025 to Oct 29, 2026, against the normal and record each report printed.

Source: NWS climate reports for KPHX, via IEM; NOAA NCEI U.S. Climate Normals

Stations nearby

Other reporting stations within 25 km (METARs only, no climate report): Scottsdale Muni (KSDL, 22 km).

Straight-line distances from KPHX; snapshot Oct 21, 2026.

Source: IEM's list of NWS climate-report sites; aviationweather.gov station information

Questions about Phoenix

Which station settles Kalshi's Phoenix high-temperature market?

Phoenix Sky Harbor International Airport (KPHX), the station named by the climate-report code CLIPHX in the market's rules. Phoenix keeps standard time all year, so its settlement day is midnight to midnight on the local clock, summer and winter.

What hours count toward Phoenix's daily high?

Midnight to midnight MST, local standard time. Today that is 12:00 AM Oct 31 to 12:00 AM Nov 1 MST.

When does the Phoenix market close and settle?

Trading closes at 12:00 AM MST after the day ends. Over the last 77 settled days the result posted a median of 7.2 hours after close.

What are Phoenix's brackets for Sat, Oct 31?

75° or below, 76° to 77°, 78° to 79°, 80° to 81°, 82° to 83°, 84° or above, compared with Sky Harbor's published whole-degree high. The two tails are strict.

How often does Phoenix settle on a tail bracket?

On 7 of 77 settled days from Aug 14, 2026 to Oct 29, 2026 (9%): 4 on the bottom tail and 3 on the top tail.

When does Phoenix's daily high usually happen?

Over 363 days to Oct 29, 2026, the median time of the official high at KPHX was 4:03 PM local standard time. On 1 of those days it came before 1 AM standard time.

How often does the afternoon climate report's high change by the final report in Phoenix?

From May 1, 2026 to Oct 29, 2026, the afternoon preliminary report's high matched the final report's on 174 of 179 days. The final was higher on 5 and lower on 0.

The rules every city shares · Reading CLIPHX · The Aug 14, 2026 change

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