{ "number": 1417, "headline": "The ledger, through October 18", "standfirst": "Mean absolute temperature error runs 2.32\u00b0F at day 1 and 4.43\u00b0F at day 7, over 562,135 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": "2026-10-18", "published": "2026-10-18T00:25:17Z", "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 September 18\u2013October 18, 2026.

LeadNDFDNBMpairs
Day 12.372.3268,680
Day 22.652.5668,998
Day 32.992.8369,145
Day 43.293.1668,903
Day 53.733.5769,426
Day 64.154.0169,656
Day 74.584.4356,116
Day 8\u20144.7534,055

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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