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daily prop · Chicago, IL · Great Lakes & Upper Midwest · settles Thu Oct 22

Chicago runs hot-for-here: 74°F+ · Thu Oct 22

12¢
american +747 · decimal 8.47
on the tape
74°F is the top-decile high for this date at this station (1940–present). Hot means hot *for here*.
Canonical settlement condition: High ≥ 74°F. The original listing above is retained as published. Open the model matchup dashboard →

The Tape

what the models knew, when
0¢25¢50¢75¢100¢10/0710/1510/19 10:35
— — reconstructed from archived model runs (deterministic values + a lead-dependent Gaussian error model, labeled, never on the tape) · — live prices from the running consensus engine.

Who's Bullish

each model's own price
wn2
48¢
aifs
47¢
ndfd
26¢
hres
17¢
icon
10¢
nbm
6¢
eps
6¢

The Ladder

where the whole distribution sits
64–65°F2¢
66–67°F10¢
68–69°F22¢
70–71°F29¢
72–73°F23¢
74–75°F11¢
76–77°F3¢
calibration receipt: lead 3, scored on 14,361 settled station-days, consensus CRPS 1.905 vs climatology 8.86.

Receipts

prop id WP-KORD-20261022-TMAX-GE74 · opened 2026-10-15T07:49:42+00:00 · minted to the append-only hash-chained tape at open; the settle writes next to the mint · inspect the tape