UAH Global Temperature Update: 2022 was the 7th Warmest of 44-Year Satellite Record

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January 3rd, 2023 by Roy W. Spencer, Ph. D.

December of 2022 finished the year with a global tropospheric temperature anomaly of +0.05 deg. C above the 1991-2020 average, which was down from the November value of +0.17 deg. C.

The average anomaly for the year was +0.174 deg. C, making 2022 the 7th warmest year of the 44+ year global satellite record, which started in late 1978. Continuing La Nina conditions in the Pacific Ocean have helped to reduce global-average temperatures for the last two years. The 10 warmest years were:

#1 2016 +0.389
#2 2020 +0.358
#3 1998 +0.347
#4 2019 +0.304
#5 2017 +0.267
#6 2010 +0.193
#7 2022 +0.174
#8 2021 +0.138
#9 2015 +0.138
#10 2018 +0.090

The linear warming trend since January, 1979 continues at +0.13 C/decade (+0.12 C/decade over the global-averaged oceans, and +0.18 C/decade over global-averaged land).

Various regional LT departures from the 30-year (1991-2020) average for the last 24 months are:

YEAR	MO	GLOBE	NHEM.	SHEM.	TROPIC	USA48	ARCTIC	AUST
2021	Jan	+0.13	+0.34	-0.09	-0.08	+0.36	+0.50	-0.52
2021	Feb	+0.20	+0.32	+0.08	-0.14	-0.65	+0.07	-0.27
2021	Mar	-0.00	+0.13	-0.13	-0.28	+0.60	-0.78	-0.79
2021	Apr	-0.05	+0.06	-0.15	-0.27	-0.01	+0.02	+0.29
2021	May	+0.08	+0.14	+0.03	+0.07	-0.41	-0.04	+0.02
2021	Jun	-0.01	+0.31	-0.32	-0.14	+1.44	+0.64	-0.76
2021	Jul	+0.20	+0.34	+0.07	+0.13	+0.58	+0.43	+0.80
2021	Aug	+0.17	+0.27	+0.08	+0.07	+0.33	+0.83	-0.02
2021	Sep	+0.26	+0.19	+0.33	+0.09	+0.67	+0.02	+0.37
2021	Oct	+0.37	+0.46	+0.28	+0.33	+0.84	+0.64	+0.07
2021	Nov	+0.09	+0.12	+0.06	+0.14	+0.50	-0.42	-0.29
2021	Dec	+0.21	+0.27	+0.15	+0.04	+1.63	+0.01	-0.06
2022	Jan	+0.03	+0.06	-0.00	-0.23	-0.13	+0.68	+0.10
2022	Feb	-0.00	+0.01	-0.02	-0.24	-0.04	-0.30	-0.50
2022	Mar	+0.15	+0.27	+0.02	-0.07	+0.22	+0.74	+0.02
2022	Apr	+0.26	+0.35	+0.18	-0.04	-0.26	+0.45	+0.61
2022	May	+0.17	+0.25	+0.10	+0.01	+0.59	+0.23	+0.19
2022	Jun	+0.06	+0.08	+0.04	-0.36	+0.46	+0.33	+0.11
2022	Jul	+0.36	+0.37	+0.35	+0.13	+0.84	+0.56	+0.65
2022	Aug	+0.28	+0.32	+0.24	-0.03	+0.60	+0.50	-0.00
2022	Sep	+0.24	+0.43	+0.06	+0.03	+0.88	+0.69	-0.28
2022	Oct	+0.32	+0.43	+0.21	+0.04	+0.16	+0.93	+0.04
2022	Nov	+0.17	+0.21	+0.12	-0.16	-0.51	+0.51	-0.56
2022	Dec	+0.05	+0.13	-0.03	-0.35	-0.21	+0.80	-0.38

The full UAH Global Temperature Report, along with the LT global gridpoint anomaly image for December, 2022 should be available within the next several days here.

The global and regional monthly anomalies for the various atmospheric layers we monitor should be available in the next few days at the following locations:

Lower Troposphere:

http://vortex.nsstc.uah.edu/data/msu/v6.0/tlt/uahncdc_lt_6.0.txt

Mid-Troposphere:

http://vortex.nsstc.uah.edu/data/msu/v6.0/tmt/uahncdc_mt_6.0.txt

Tropopause:

http://vortex.nsstc.uah.edu/data/msu/v6.0/ttp/uahncdc_tp_6.0.txt

Lower Stratosphere:

http://vortex.nsstc.uah.edu/data/msu/v6.0/tls/uahncdc_ls_6.0.txt