How the Philadelphia high-temperature market settles

Kalshi's Philadelphia market settles on the daily high at Philadelphia International (KPHL), as the climate report CLIPHL and The Weather Company publish it. Series KXHIGHPHIL, listed since Nov 20, 2024.

Updated Oct 31, 4:20 AM EDT: newest final official high is for Fri, Oct 30.

Today in Philadelphia

The settlement station

Philadelphia International Airport

Station
KPHL
Report code
CLIPHL
NWS office
PHI
Time zone
America/New York

Source: Kalshi contract terms; NWS climate report CLIPHL

Today's window (Sat, Oct 31)

1:00 AM Oct 31 to 1:00 AM Nov 1 EDT

Midnight to midnight EST, local standard time: 1:00 AM to 1:00 AM on Philadelphia's clock while daylight saving is on.

Opened
Oct 30, 10:00 AM EDT
Closes
Nov 1, 1:00 AM EDT
Usually settles
around 6:12 AM
median 6.2 h after close, 77 settled days

Today's six brackets, in whole degrees

  • 60° or below
  • 61° to 62°
  • 63° to 64°
  • 65° to 66°
  • 67° to 68°
  • 69° or above

The window for any city and date

How Philadelphia settled, day by day

Since Aug 14, 2026, 5 of 77 days (6%) settled on a tail bracket: 5 below the bottom bracket and 0 above the top one. In the last 30 days: 2 of 30.

DaySettled onWinning bracket
Thu, Oct 2970°69° to 70°
Wed, Oct 2867°67° to 68°
Tue, Oct 2766°66° to 67°
Mon, Oct 2671°70° to 71°
Sun, Oct 2566°65° to 66°
Sat, Oct 2463°63° to 64°
Fri, Oct 2362°61° to 62°
Thu, Oct 2270°70° to 71°
Wed, Oct 2167°67° to 68°
Tue, Oct 2071°70° to 71°
Mon, Oct 1967°66° to 67°
Sun, Oct 1861°60° to 61°
Sat, Oct 1763°62° to 63°
Fri, Oct 1677°77° or belowbottom tail
Thu, Oct 1573°72° to 73°
Wed, Oct 1480°80° or belowbottom tail
Tue, Oct 1381°80° to 81°
Mon, Oct 1274°74° to 75°
Sun, Oct 1165°64° to 65°
Sat, Oct 1076°76° to 77°
Fri, Oct 976°76° to 77°
Thu, Oct 880°79° to 80°
Wed, Oct 772°71° to 72°
Tue, Oct 665°64° to 65°
Mon, Oct 573°72° to 73°
Sun, Oct 464°64° to 65°
Sat, Oct 373°72° to 73°
Fri, Oct 287°86° to 87°
Thu, Oct 183°82° to 83°
Wed, Sep 3077°76° to 77°

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

When the high happens at Philadelphia International

Over 361 days (Oct 31, 2025 to Oct 30, 2026), the median time of the official high was 3:31 PM local standard time, and half the highs came between 2:15 PM and 4:24 PM. Over the last 60 days the median was 3:13 PM.

Philadelphia International's high came before 1 AM standard time (1 to 2 AM daylight time) on 10 of 361 days (3%): the climate day's warmest minutes were its first.

  • Midnight to 1 AM3%
  • 1 to 6 AM3%
  • 6 AM to noon4%
  • Noon to 3 PM28%
  • 3 to 6 PM55%
  • 6 PM to midnight7%

KPHL report times, standard time. 4 without a time (MM) left out.

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

Did the afternoon report's high hold?

On 181 days from May 1, 2026 to Oct 30, 2026, the NWS's afternoon preliminary report (usually "as of 5 PM" local time) had the same high as the final report on 170 of 181 days (94%). The final report came in higher on 11 and never lower.

9 of those 11 higher finals put the high after the 5 PM cutoff.

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

Records and normals at Philadelphia International

The normal high for Oct 31 is 62°F and the record high is 82°F. The normal falls to 51°F by Nov 30.

Against the normal
+1.0°F on average
above on 181, below on 163 of 365 days
Warmest and coolest
103° and 20°
103° on Jul 2, 2026; 20° on Jan 24, 2026
Record highs set or tied
12 days
Jul 2 103°, Jun 12 98°, Jun 11 97°, …

365 final highs at KPHL, Oct 31, 2025 to Oct 30, 2026, against the normal and record each report printed.

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

Stations nearby

Climate-report stations near Philadelphia International, and how their official highs ran against it. None settles the Philadelphia market.

  • Wilmington Airport KILG · 39 km−0.4°F on average; the same whole degree on 91 of 365 days, 2°F or more apart on 128.

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

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

Questions about Philadelphia

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

Philadelphia International Airport (KPHL), the station named by the climate-report code CLIPHL in the market's rules.

What hours count toward Philadelphia's daily high?

Midnight to midnight EST, local standard time. During daylight saving that is 1:00 AM Oct 31 to 1:00 AM Nov 1 EDT.

When does the Philadelphia market close and settle?

Trading closes at 1:00 AM EDT after the day ends. Over the last 77 settled days the result posted a median of 6.2 hours after close.

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

60° or below, 61° to 62°, 63° to 64°, 65° to 66°, 67° to 68°, 69° or above, compared with Philadelphia International's published whole-degree high. The two tails are strict.

How often does Philadelphia settle on a tail bracket?

On 5 of 77 settled days from Aug 14, 2026 to Oct 29, 2026 (6%): 5 on the bottom tail and 0 on the top tail.

When does Philadelphia's daily high usually happen?

Over 361 days to Oct 30, 2026, the median time of the official high at KPHL was 3:31 PM local standard time. On 10 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 Philadelphia?

From May 1, 2026 to Oct 30, 2026, the afternoon preliminary report's high matched the final report's on 170 of 181 days. The final was higher on 11 and lower on 0.

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

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