Ted S. Warren/AP
Seattle had one of the hottest nights on record, Wednesday night through Thursday morning with 14 degrees warmer than average, according to the National Weather Service.
The overnight temperature reached 71 degrees, one of only three nights in the city’s climate record when the overnight temperature exceeded 70 degrees.
The average nighttime temperature for this time of year in Seattle is 57 degrees.
The low temperature in Seattle until 5 a.m. this morning was 71 degrees F.
Number of days in Seattle’s climate record with low temperatures equal to or greater than 70 degrees: 2.#wawx
— NWS Seattle (@NWSSeattle) August 18, 2022
The hot night reported in the Pacific Northwest city follows a study showing that rising nighttime temperatures can increase the death rate by up to 60% in three Asian countries at the turn of the century. The study authors say this is the first research to estimate the impact of warmer nights on mortality risks from climate change.
This death rate focuses on deaths from excessively hot nights. More heat at night can disrupt sleep patterns as the body attempts to cool down, leading to adverse effects on the immune system. This could contribute to the likelihood of developing cardiovascular disease, chronic disease, inflammation and mental health problems, the study authors concluded.