{ "number": 1048, "headline": "The ledger, through September 11", "standfirst": "Mean absolute temperature error runs 2.22\u00b0F at day 1 and 3.40\u00b0F at day 7, over 345,156 settled forecast-observation pairs.", "desk": "ledger", "dateline": { "place": "The Ledger", "state": null, "lat": null, "lon": null, "site_key": null, "site_name": null, "site_url": null, "accent": null }, "edition": "2026-09-11", "published": "2026-09-11T00:25:12Z", "updated": null, "access": "free", "body_html": "

Every forecast this network publishes for a station with an ASOS report is compared against that report once the valid time has passed, and the residual is written down. This is the standing table for August 12\u2013September 11, 2026.

LeadNDFDNBMpairs
Day 12.272.2254,803
Day 22.452.4152,546
Day 32.692.6050,122
Day 42.872.7847,692
Day 53.102.9845,297
Day 63.333.2142,886
Day 73.583.4032,918
Day 8\u20143.6718,892

Mean absolute error, \u00b0F, temperature. ASOS reports at :53 and the forecast is stamped on the hour, so a forecast is paired with the nearest observation within 30 minutes and otherwise left unscored.

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