Was the forecast right for New York on Sat Sep 12?
New York, New York · daily high temperature in °F · forecasts from each model's archived runs, verified against the NYC observations
13 days out, 4 models put New York's Sat Sep 12 high anywhere from 61° to 88°; by the final call the field had settled to a median of 78°. The day verified at 78° against the NYC observations — cloudy.
AIFS landed closest, off by 0.2°. GFS ran 3° hot.
What every model said, at every lead
Daily-high calls for Sat Sep 12 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 · 2026-08-28 | — | 81° | — | — | 77° | — | — | 77–81° |
| 14d · 2026-08-29 | 86° | 71° | — | — | 82° | — | — | 71–86° |
| 13d · 2026-08-30 | 76° | 88° | 68° | — | 61° | — | — | 61–88° |
| 12d · 2026-08-31 | 90° | 84° | 81° | — | 83° | — | — | 81–90° |
| 11d · 2026-09-01 | 75° | 72° | 78° | — | 73° | — | — | 72–78° |
| 10d · 2026-09-02 | 75° | 90° | 75° | — | 82° | — | — | 75–90° |
| 9d · 2026-09-03 | 69° | 73° | 68° | — | 80° | — | — | 68–80° |
| 8d · 2026-09-04 | 76° | 77° | 73° | 73° | 74° | — | — | 73–77° |
| 7d · 2026-09-05 | 83° | 74° | 74° | 85° | 78° | — | — | 74–85° |
| 6d · 2026-09-06 | 78° | 80° | 80° | 75° | 84° | 78° | — | 75–84° |
| 5d · 2026-09-07 | 76° | 78° | 78° | 79° | 82° | 77° | 77° | 76–82° |
| 4d · 2026-09-08 | 75° | 74° | 76° | 79° | 80° | 77° | 79° | 74–80° |
| 3d · 2026-09-09 | 78° | 75° | 80° | 80° | 83° | 75° | 78° | 75–83° |
| 2d · 2026-09-10 | 78° | 76° | 79° | 78° | 82° | 76° | 79° | 76–82° |
| 1d · 2026-09-11 | 78° | 75° | 78° | 81° | 82° | 76° | 78° | 75–82° |
| 0d · 2026-09-12 | 78° | 75° | 78° | 80° | 81° | 77° | 78° | 75–81° |
| 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. Archive depth varies by city; receipts exist only for dates the archive watched arrive.