The National Oceanic and Atmospheric Administration (NOAA) says the planet just experienced its warmest October on record

The National Oceanic and Atmospheric Administration (NOAA) says the planet just experienced its warmest October on record

November 16, 2023

A map of the world plotted with some of the most significant climate events that occurred during October 2023. NOAA chart

The National Oceanic and Atmospheric Administration (NOAA) said yesterday that the planet added another record month to 2023, with October ranking as the warmest month in the 174-year global climate record.

Last month was also the fifth month of 2023 in a row in which global temperatures hit record highs, according to scientists from the National Oceanic and Atmospheric Administration’s (NOAA) National Centers for Environmental Information.

Here are more highlights from NOAA’s October Global Climate Report:

Climate in numbers

October 2023

The average global temperature for October was 2.41 °F (1.34 °C) above the 20th century average of 57.1 °F (14.0 °C), making it the world’s warmest October on record. This was 0.43°F (0.24°C) higher than the previous record set in October 2015. For the seventh month in a row, global ocean surface temperature also hit a record high.

At the regional level, Asia and South America witnessed the warmest Octobers on record, while Africa, Europe, and North America witnessed the second warmest Octobers.

Last month was the 47th consecutive October, and the 536th consecutive month, in which global temperatures exceeded the 20th century average. The past 10 months (2014-2023) were the warmest months in the National Oceanic and Atmospheric Administration’s (NOAA) global climate record.

Year-to-date (YTD), January through October 2023

The year-to-date global average surface temperature ranked as the warmest period on record at 2.03°F (1.13°C) above the 20th century average.

according to According to NCEI’s annual global temperature forecast, there is a greater than 99% chance that 2023 will rank as the world’s warmest year on record.

Other notable weather events from October 2023

Last month set a record for the lowest extent of sea ice in October globally. The record was set primarily due to the low extent (coverage) of Antarctic sea ice, which marked its sixth consecutive month with record low sea ice extent. Globally, October sea ice extent was 380,000 square miles lower than the previous record low in October 2016. Arctic sea ice extent for October 2023 ranked seventh in the satellite record.

Fifteen named tropical cyclones have occurred worldwide. October 2023 will see 15 identified tropical systems form around the world, higher than the 1991-2020 average of 12 systems. Nine reached tropical cyclone strength (sustained winds of 74 mph or higher), and seven reached major tropical cyclone strength (sustained winds of 111 mph or higher). Super Typhoon Bolaven in the western Pacific and Hurricane Otis in the eastern Pacific both reached Category 5 (sustained winds of 157 mph or higher).

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