Highest temperature in Los Angeles on August 9?

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Market context

The last 24-48 hours point to a fairly contained finish at LAX rather than a late surge, with official National Weather Service observations for Los Angeles International Airport showing a midday rise into the upper 70s and about 79°F by early afternoon on 9 August, while the daily climate report for downtown Los Angeles put yesterday’s maximum at 92°F and today’s normal high at 84°F.[10][1] In market terms, that keeps the focus on whether the airport’s final daily high lands in the 80-81°F bin already priced as the clear front-runner, rather than on any broader city heat headline.[2]

Historically, August in Los Angeles can still produce sharp coastal-to-inland splits, but the airport is usually far less volatile than inland stations when marine influence is present. Weather records and climatology for the area show an August normal high in the mid-80s for downtown Los Angeles, while LAX-specific summer readings often sit lower; recent high-temperature records elsewhere in the region have been broken this season, yet the airport has only recently been near low-80s territory rather than in the 90s.[1][15][14] That makes the current 0% yes pricing on any alternative bin unsurprising if the market is anchored to the observed LAX pattern rather than inland warmth.[2]

Traders should watch the final Weather Underground daily observations table for Los Angeles International Airport, because the market settles on that source rather than the summary high-and-low display, and revisions can count until the first datapoint for the following date is published.[2] The key catalyst is any late-evening update or backfill to the station’s maximum after the day ends; the NOAA time series already showed temperatures topping out around 79°F during the afternoon, so only a modest upward revision would matter if it appears before the cut-off.[10]

Sources: 1 · 2 · 3 · 4 · 5

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