UAH Global Temperature Update for December, 2021: +0.21 deg. C.

January 2nd, 2022 by Roy W. Spencer, Ph. D.

The Version 6.0 global average lower tropospheric temperature (LT) anomaly for December, 2021 was +0.21 deg. C, up from the November, 2021 value of +0.08 deg. C.

The annual average anomaly for 2021 was +0.134 deg. C above the 30-year mean (1991-2020), which places it as the 8th warmest year in the 43 year satellite record, behind 2016, 2020, 1998, 2019, 2017,2010, and 2015.

The linear warming trend since January, 1979 remains at +0.14 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 
2020 01 0.42 0.44 0.40 0.52 0.57 -0.22 0.41
2020 02 0.59 0.74 0.45 0.63 0.17 -0.27 0.20
2020 03 0.35 0.42 0.27 0.53 0.81 -0.95 -0.04
2020 04 0.26 0.26 0.25 0.35 -0.70 0.63 0.78
2020 05 0.42 0.43 0.41 0.53 0.07 0.84 -0.20
2020 06 0.30 0.29 0.30 0.31 0.26 0.54 0.97
2020 07 0.31 0.31 0.31 0.28 0.44 0.27 0.26
2020 08 0.30 0.34 0.26 0.45 0.35 0.30 0.24
2020 09 0.40 0.42 0.39 0.29 0.69 0.24 0.64
2020 10 0.38 0.53 0.22 0.24 0.86 0.95 -0.01
2020 11 0.40 0.52 0.27 0.17 1.45 1.09 1.28
2020 12 0.15 0.08 0.21 -0.07 0.29 0.44 0.13
2021 01 0.12 0.34 -0.09 -0.08 0.36 0.50 -0.52
2021 02 0.20 0.32 0.08 -0.14 -0.65 0.07 -0.27
2021 03 -0.01 0.13 -0.14 -0.29 0.59 -0.78 -0.79
2021 04 -0.05 0.05 -0.15 -0.28 -0.02 0.02 0.29
2021 05 0.08 0.14 0.03 0.06 -0.41 -0.04 0.02
2021 06 -0.01 0.31 -0.32 -0.14 1.44 0.63 -0.76
2021 07 0.20 0.33 0.07 0.13 0.58 0.43 0.80
2021 08 0.17 0.27 0.08 0.07 0.33 0.83 -0.02
2021 09 0.25 0.18 0.33 0.09 0.67 0.02 0.37
2021 10 0.37 0.46 0.27 0.33 0.84 0.63 0.06
2021 11 0.08 0.11 0.06 0.14 0.50 -0.42 -0.29
2021 12 0.21 0.27 0.15 0.03 1.63 0.01 -0.06

The full UAH Global Temperature Report, along with the LT global gridpoint anomaly image for December, 2021 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


2,692 Responses to “UAH Global Temperature Update for December, 2021: +0.21 deg. C.”

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  1. Mark B says:

    Post counts (20+ posts) for December thread as of 7 Feb 11:30 EST:

    Total Posts: 2674
    RLH : 505
    Dr Roys Emergency Moderation Team : 400
    Willard : 227
    Clint R : 206
    Gordon Robertson : 167
    Bindidon : 135
    Ball4 : 131
    Entropic man : 110
    Nate : 94
    TYSON MCGUFFIN : 79
    Swenson : 68
    Christos Vournas : 51
    Tim Folkerts : 46
    E. Swanson : 46
    bobdroege : 43
    Norman : 41
    Eben : 41
    Ken : 36
    gbaikie : 33
    barry : 26
    Antonin Qwerty : 25
    Billy Bob : 24

    • Dr Roys Emergency Moderation Team says:

      There were three other articles this month. When you add together the comments from the other articles, it’s:

      Willard: 227 + 432 + 59 + 22 = 740.
      RLH: 505 + 9 + 26 + 26 = 566.
      DREMT: 400 + 117 + 0 + 0 = 517.
      Swenson: 68 + 355 + 65 + 24 = 512.

      at the top…

      • Antonin Qwerty says:

        So the only reason the deniers are not ahead is because they play tag and split the “vote”.

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