2023 Was the Warmest Year In the 45-Year Satellite Record The Version 6 global average lower tropospheric temperature (LT) anomaly for December, 2023 was +0.83 deg. C departure from the 1991-2020 mean, down from the November, 2023 anomaly of +0.91 deg. C. The 2023 annual average global LT anomaly was +0.51 deg. C above the … Continue reading UAH Global Temperature Update for December, 2023: +0.83 deg. C