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UPDATE: July 2023 was the hottest month globally since modern recordkeeping began in 1880, measuring at 1.18°C (2.12°F) above @NASA’s 1951-1980 baseline average. The 8 warmest Julys have all occurred since 2016: https://climate.nasa.gov/news/3279/nasa-clocks-july-2023-as-hottest-month-on-record-ever-since-1880/
#FYI, @NASA uses its baseline because @NWS uses a 30-year period to define "normal," or average, temperature. NASA started tracking temps in 1980, and the most recent 30-year period at that time was 1951-1980.
Image Descriptions:
1. A plot showing an upward trend in average relative July global temperatures since 1880, using NASA’s 1951-1980 baseline
2. Global map of average July 2023 temperature changes. Parts of South America, North Africa, North America, and the Antarctic Peninsula were especially hot, experiencing temperatures around 4°C (7.2°F) above average. Overall, most places were warmer than normal.
3. A bar graph showing July global temperature since 1880, based on NASA data. The x-axis is labeled “Temperature Anomaly °C” (an anomaly being a measurement that’s warmer or cooler than average); the y-axis is labeled “Year.” Bars on this graph are mostly bluer (cooler, below 0°C) until about the 1980s, when they start to become redder (warmer, above 0°C). Rapid warming ensues, with July 2023 reaching over 1°C.
