Was the forecast right for New York on Thu Aug 13?
New York, New York · daily high temperature in °F · forecasts from each model's archived runs, verified against the ECMWF IFS analysis
14 days out, 4 models put New York's Thu Aug 13 high anywhere from 71° to 81°;by the final call, the day before, the field had settled to a median of 87°. The day verified at 85° against the ECMWF IFS analysis, with 0.63 in of precipitation — rain.
AIFS landed closest, off by 0.4°. UKMO ran 4° warm.
What every model said, at every lead
Daily-high calls for Thu Aug 13 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 · 2026-07-29 | — | 80° | — | — | 81° | — | — | 80–81° |
| 14d · 2026-07-30 | 76° | 81° | 79° | — | 71° | — | — | 71–81° |
| 13d · 2026-07-31 | 82° | 83° | 82° | — | 84° | — | — | 82–84° |
| 12d · 2026-08-01 | 81° | 80° | 95° | — | 93° | — | — | 80–95° |
| 11d · 2026-08-02 | 80° | 81° | 85° | — | 81° | — | — | 80–85° |
| 10d · 2026-08-03 | 83° | 79° | 85° | — | 82° | — | — | 79–85° |
| 9d · 2026-08-04 | 85° | 86° | 87° | 76° | 78° | — | — | 76–87° |
| 8d · 2026-08-05 | 85° | 86° | 87° | 79° | 91° | — | — | 79–91° |
| 7d · 2026-08-06 | 86° | 88° | 88° | 85° | 88° | — | — | 85–88° |
| 6d · 2026-08-07 | 86° | 88° | 90° | 81° | 86° | 88° | 85° | 81–90° |
| 5d · 2026-08-08 | 86° | 88° | 85° | 84° | 87° | 88° | 90° | 84–90° |
| 4d · 2026-08-09 | 87° | 88° | 89° | 85° | 85° | 88° | 87° | 85–89° |
| 3d · 2026-08-10 | 86° | 86° | 90° | 83° | 82° | 89° | 90° | 82–90° |
| 2d · 2026-08-11 | 86° | 88° | 86° | 84° | 90° | 88° | 87° | 84–90° |
| 1d · 2026-08-12 | 85° | 88° | 84° | 87° | 83° | 87° | 89° | 83–89° |
| actual | 85° |
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 ECMWF IFS analysis (temperature_2m_max). 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.