Was the forecast right for New York on Mon Sep 7?
New York, New York · daily high temperature in °F · forecasts from each model's archived runs, verified against the NYC observations
14 days out, 4 models put New York's Mon Sep 7 high anywhere from 76° to 84°;by the final call, the day before, the field had settled to a median of 79°. The day verified at 78° against the NYC observations — cloudy.
ECMWF landed closest, off by 0.5°. GEM ran 4° warm.
What every model said, at every lead
Daily-high calls for Mon Sep 7 as each model's runs approached it — the last archived run per day. NBM and The Spread's own blend are consensus products and stay out of these ranges and rankings; the New York scoreboard shows them, labelled.
| Lead | AIFS | AIGFS | ECMWF | GEM | GFS | ICON | UKMO | Range |
|---|---|---|---|---|---|---|---|---|
| 15d · 2026-08-23 | — | 77° | — | — | 80° | — | — | 77–80° |
| 14d · 2026-08-24 | 84° | 76° | 76° | — | 79° | — | — | 76–84° |
| 13d · 2026-08-25 | 80° | 84° | 82° | — | 95° | — | — | 80–95° |
| 12d · 2026-08-26 | 86° | 76° | 81° | — | 80° | — | — | 76–86° |
| 11d · 2026-08-27 | 80° | 90° | 85° | — | 84° | — | — | 80–90° |
| 10d · 2026-08-28 | 76° | 78° | 84° | — | 81° | — | — | 76–84° |
| 9d · 2026-08-29 | 78° | 79° | 73° | 74° | 84° | — | — | 73–84° |
| 8d · 2026-08-30 | 79° | 73° | 80° | 78° | 78° | — | — | 73–80° |
| 7d · 2026-08-31 | 78° | 80° | 76° | 80° | 80° | — | — | 76–80° |
| 6d · 2026-09-01 | 78° | 78° | 78° | 77° | 83° | 80° | 79° | 77–83° |
| 5d · 2026-09-02 | 78° | 79° | 80° | 77° | 80° | 80° | 80° | 77–80° |
| 4d · 2026-09-03 | 77° | 80° | 76° | 78° | 81° | 80° | 78° | 76–81° |
| 3d · 2026-09-04 | 78° | 79° | 79° | 79° | 82° | 80° | 79° | 78–82° |
| 2d · 2026-09-05 | 78° | 78° | 78° | 79° | 82° | 79° | 79° | 78–82° |
| 1d · 2026-09-06 | 79° | 79° | 78° | 82° | 82° | 79° | 79° | 78–82° |
| actual | 78° |
Read it honestly
This is one date, not a league table. A model can win a day it deserved to lose; rankings only mean something over a window. For that, see which model has been most accurate in New York — or every city The Spread scores.
Forecasts are what each model's archived runs said at the time, captured at The Spread's sweep times — never reconstructed after the fact. Truth is the NYC observations. The actual values are the ones in hand when this receipt was settled, usually 2 days after the date; a correction published after that is not carried into it. Archive depth varies by city; receipts exist only for dates the archive watched arrive.