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August Temperature Extremes

The highest temperature ever recorded for the month of August occurred on August 12, 1933, at Greenland Ranch, Calif. (elevation –178 ft), where the temperature reached 127°F. The lowest…

September Temperature Extremes

The highest temperature ever recorded for the month of September occurred on September 2, 1950, in Mecca, Calif. (elevation –175 ft), where the temperature reached 126°F. The lowest…

October Temperature Extremes

The highest temperature ever recorded for the month of October occurred on October 5, 1917, in Sentinel, Ariz. (elevation 685 ft), where the temperature reached 116°F. The lowest temperature…

November Temperature Extremes

The highest temperature ever recorded for the month of November occurred on November 12, 1906, in Craftonville, Calif. (elevation 1,759 ft), where the temperature reached 105°F. The lowest…

December Temperature Extremes

The highest temperature ever recorded for the month of December occurred on December 8, 1938, in La Mesa, Calif. (elevation 539 ft), where the temperature reached 100°F. The lowest…

The Highest Temperature Extremes

Greenland Ranch, Calif., with 134°F on July 10, 1913, holds the record for the highest temperature ever officially observed in the United States. This station was located in barren Death…

The Lowest Temperature Extremes

The lowest temperature on record in the United States, –79.8°F, was observed at Prospect Creek Camp in the Endicott Mountains of northern Alaska (latitude 66°48'N, longitude 150°40'W) on Jan…

Recorded Weather Extremes, U.S. and Worldwide

Highest average annual mean temperature (world): Dallol, Ethiopia (Oct. 1960–Dec. 1966), 94° F (34.4° C). (U.S.): Key West, Fla. (30-year normal), 78.2° F (25.7° C).Lowest average annual mean…

Effects of Dry Air on the Body

Studies have shown that dry air has four main effects on the human body:Breathing dry air is a potential health hazard which can cause such respiratory ailments as asthma, bronchitis,…

Some Outstanding Temperature Rises

In 12 hours: 83°F, Granville, N.D., Feb. 21, 1918, from –33°F to 50°F from early morning to late afternoon. In 15 minutes: 42°F, Fort Assiniboine, Mont., Jan. 19, 1892, from –5°F to 37°F. In…