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TheForecast Post

A chronicle of American weather and climate  ·  Wednesday, 16 September 2026

Weather Trader Notebook MILEPOST 121

October 16, 2023 Afternoon Update

Quiet weather week

What the month did

October 2023 was the 23rd-warmest October in the 131-year national record (1895–2025), at 56.0°F against a 1991–2020 normal of 54.5°F (+1.5°F).

October 2023 was the 62nd-driest October in the 131-year national record (1895–2025), at 2.2in against a 1991–2020 normal of 2.5in (-0.3in).

NOAA/NCEI Climate at a Glance, contiguous United States. This is the observed record for the month, not a score of anything said in this piece — the forecast ledger begins 2026-08-17 and cannot reach earlier posts.

Aside from an atmospheric river impacting the Pacific Northwest with rain showers today, the rest of the U.S. is under the control of high pressure behind a strong cold front. High temperatures were 15-25°F below normal from the Ohio Valley into Florida — about as cool of a day possible in mid-October in terms of daily maximums.

Temperature anomalies when averaged out across the Lower 48 actually come out above average.

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Milepost
121 · laid 2023-10-16T22:02:18.700000Z
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https://weather.substack.com/p/october-16-2023-afternoon-update
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