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Miami Hits 100°F for First Time Since 1942

The temperature tied with the highest in 130 years of weather observations.

On Tuesday, Miami experienced a temperature of 100 degrees Fahrenheit, marking its first 100°F reading since 1942. This reached the city's all-time temperature record, previously set on July 21, 1942, during a powerful heat wave that affected Florida and the southeastern United States. Meteorologists noted that Miami's location and humid climate usually prevent temperatures from reaching triple digits, but the current setup differed from usual.

A strong area of high pressure, drier air, and limited offshore winds reduced the usual cooling effects of sea breezes and storm activity. As a result, temperatures climbed steadily throughout the day. The average high temperature for mid-August in Miami is around 91°F, making Tuesday's 100°F reading about nine degrees above normal.

The record-setting temperature came as a major heat dome settled over Florida and the southeastern U.S., causing maximum heat indices between 105°F and 112°F across South Florida. The National Weather Service issued heat advisories throughout the week, urging residents to stay hydrated, limit outdoor activities, and use air conditioning.

This record-tying event occurred during a summer marked by significant weather extremes across the U.S., highlighting the varying weather patterns. While some regions faced severe flooding and tropical storms, others, like Miami, experienced record-breaking heat. The immediate cause of the record was the powerful heat dome and associated atmospheric conditions, with forecasters expecting the pattern to change as rain and thunderstorms return to South Florida in the coming days.

Written by urgent.news from Newsweek's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.

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