Kalshi's Trenton market settles on the daily high at Trenton-Mercer (KTTN), as the climate report CLITTN and The Weather Company publish it. Series KXHIGHTTTN, listed since Aug 26, 2026.
Updated Oct 31, 4:21 AM EDT: newest final official high is for Fri, Oct 30.
Trenton-Mercer Airport
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 Trenton's clock while daylight saving is on.
Today's six brackets, in whole degrees
Since Aug 26, 2026, 7 of 65 days (11%) settled on a tail bracket: 7 below the bottom bracket and 0 above the top one. In the last 30 days: 3 of 30.
| Day | Settled on | Winning bracket | Time of high (LST) | Settled at |
|---|---|---|---|---|
| Thu, Oct 29 | 69° | 68° to 69° | 2:34 PM | Oct 30, 7:11 AM EDT |
| Wed, Oct 28 | 64° | 63° to 64° | 2:04 PM | Oct 29, 7:11 AM EDT |
| Tue, Oct 27 | 64° | 64° to 65° | 3:11 PM | Oct 28, 7:11 AM EDT |
| Mon, Oct 26 | 71° | 71° to 72° | 3:38 PM | Oct 27, 7:12 AM EDT |
| Sun, Oct 25 | 66° | 66° to 67° | 3:02 PM | Oct 26, 7:11 AM EDT |
| Sat, Oct 24 | 62° | 62° to 63° | 2:49 PM | Oct 25, 7:11 AM EDT |
| Fri, Oct 23 | 61° | 60° to 61° | 2:35 PM | Oct 24, 7:11 AM EDT |
| Thu, Oct 22 | 69° | 68° to 69° | 4:04 PM | Oct 23, 7:12 AM EDT |
| Wed, Oct 21 | 66° | 66° to 67° | 2:13 PM | Oct 22, 7:11 AM EDT |
| Tue, Oct 20 | 69° | 68° to 69° | 3:42 PM | Oct 21, 7:11 AM EDT |
| Mon, Oct 19 | 66° | 66° to 67° | 3:05 PM | Oct 20, 7:11 AM EDT |
| Sun, Oct 18 | 59° | 58° to 59° | 4:00 PM | Oct 19, 7:11 AM EDT |
| Sat, Oct 17 | 61° | 60° to 61° | 12:03 AM | Oct 18, 7:11 AM EDT |
| Fri, Oct 16 | 74° | 75° or belowbottom tail | 4:07 PM | Oct 17, 7:11 AM EDT |
| Thu, Oct 15 | 67° | 67° to 68° | 2:25 PM | Oct 16, 7:11 AM EDT |
| Wed, Oct 14 | 81° | 81° to 82° | 2:34 PM | Oct 15, 7:11 AM EDT |
| Tue, Oct 13 | 77° | 77° to 78° | 4:08 PM | Oct 14, 7:11 AM EDT |
| Mon, Oct 12 | 72° | 71° to 72° | 4:16 PM | Oct 13, 7:11 AM EDT |
| Sun, Oct 11 | 61° | 61° or belowbottom tail | 3:31 PM | Oct 12, 7:11 AM EDT |
| Sat, Oct 10 | 73° | 73° to 74° | 1:35 PM | Oct 11, 7:11 AM EDT |
| Fri, Oct 9 | 73° | 73° to 74° | 1:24 PM | Oct 10, 7:10 AM EDT |
| Thu, Oct 8 | 75° | 74° to 75° | 2:33 PM | Oct 9, 7:11 AM EDT |
| Wed, Oct 7 | 68° | 67° to 68° | 3:48 PM | Oct 8, 7:12 AM EDT |
| Tue, Oct 6 | 62° | 62° to 63° | 4:13 PM | Oct 7, 7:12 AM EDT |
| Mon, Oct 5 | 71° | 70° to 71° | 1:42 PM | Oct 6, 7:13 AM EDT |
| Sun, Oct 4 | 61° | 62° or belowbottom tail | 8:59 AM | Oct 5, 7:13 AM EDT |
| Sat, Oct 3 | 72° | 71° to 72° | 2:36 PM | Oct 4, 7:14 AM EDT |
| Fri, Oct 2 | 87° | 87° to 88° | 2:45 PM | Oct 3, 7:13 AM EDT |
| Thu, Oct 1 | 79° | 78° to 79° | 4:03 PM | Oct 2, 7:14 AM EDT |
| Wed, Sep 30 | 76° | 75° to 76° | 2:34 PM | Oct 1, 7:13 AM EDT |
Source: Each market's result, settlement value and time: Kalshi's public market data; Time of the high: NWS climate reports for KTTN, via IEM
Over 364 days (Oct 31, 2025 to Oct 30, 2026), the median time of the official high was 3:27 PM local standard time, and half the highs came between 2:12 PM and 4:19 PM. Over the last 60 days the median was 3:11 PM.
Trenton-Mercer's high came before 1 AM standard time (1 to 2 AM daylight time) on 8 of 364 days (2%): the climate day's warmest minutes were its first.
KTTN report times, standard time. 1 without a time (MM) left out.
Source: NWS climate reports for KTTN, via IEM; IEM table of NWS climate reports
On 182 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 175 of 182 days (96%). The final report came in higher on 7 and never lower.
6 of those 7 higher finals put the high after the 5 PM cutoff.
Source: Every NWS climate report issued for KTTN (CLITTN), via IEM's text archive
The normal high for Oct 31 is 60°F and the record high is 82°F. The normal falls to 49°F by Nov 30.
365 final highs at KTTN, Oct 31, 2025 to Oct 30, 2026, against the normal and record each report printed.
Source: NWS climate reports for KTTN, via IEM; NOAA NCEI U.S. Climate Normals
Trenton-Mercer Airport (KTTN), the station named by the climate-report code CLITTN in the market's rules.
Midnight to midnight EST, local standard time. During daylight saving that is 1:00 AM Oct 31 to 1:00 AM Nov 1 EDT.
Trading closes at 1:00 AM EDT after the day ends. Over the last 65 settled days the result posted a median of 6.2 hours after close.
58° or below, 59° to 60°, 61° to 62°, 63° to 64°, 65° to 66°, 67° or above, compared with Trenton-Mercer's published whole-degree high. The two tails are strict.
On 7 of 65 settled days from Aug 26, 2026 to Oct 29, 2026 (11%): 7 on the bottom tail and 0 on the top tail.
Over 364 days to Oct 30, 2026, the median time of the official high at KTTN was 3:27 PM local standard time. On 8 of those days it came before 1 AM standard time.
From May 1, 2026 to Oct 30, 2026, the afternoon preliminary report's high matched the final report's on 175 of 182 days. The final was higher on 7 and lower on 0.
The rules every city shares · Reading CLITTN · The Aug 14, 2026 change
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