It’s official – July 2023 was not only the warmest July on record, but it was also the warmest month on record too, and it did it by a massive margin of 0.16°C (in global temperature terms) from the July of 2016😮. That’s according to mean temperature estimates from my DIYDIY Do It Yourself global temperature series that extend back to 1948, and which I derive from reanalysis data I download from NOAANOAA NOAA is an agency in the Department of Commerce that maps the oceans and conserves their living resources; predicts changes to the earth's environment; provides weather reports and forecasts floods and hurricanes and other natural disasters related to weather..
Despite this I notice that the linear trend for July mean temperatures is still only 0.91°C per decade🤔.
The daily global mean temperature has been at unprecedented levels too for much of the summer and still is, but has now started to cool off as the globe cools down as we head to the boreal Autumn.
One of the main reasons why this summer 2023 is so warm is the sudden increase in temperatures across the tropics, no doubt brought about from the switch from La NinaLa Niña La Niña is an oceanic and atmospheric phenomenon that is the colder counterpart of El Niño, as part of the broader El Niño–Southern Oscillation climate pattern. The name La Niña originates from Spanish for "the girl", by analogy to El Niño, meaning "the boy". In the past, it was also called an anti-El Niño[1] and El Viejo, meaning "the old man." to El NinoEl Niño El Niño 'The Boy' is the warm phase of the El Niño–Southern Oscillation and is associated with a band of warm ocean water that develops in the central and east-central equatorial Pacific conditions this spring. This graph shows the sharp rise quite dramatically.