2016 Not Statistically Warmer Than 1998, Satellites Data Shows

  • Date: 03/01/17
  • Dr Roy Spencer

Strong December Cooling Leads to 2016 Being Statistically Indistinguishable from 1998

The Version 6.0 global average lower tropospheric temperature (LT) anomaly for December 2016 was +0.24 deg. C, down substantially from the November value of +0.45 deg. C (click for full size version):

The resulting 2016 annual average global temperature anomaly is +0.50 deg. C, which is (a statistically insignificant) 0.02 deg. C warmer than 1998 at +0.48 deg. C. We estimate that 2016 would have had to be 0.10 C warmer than 1998 to be significantly different at the 95% confidence level. Both 2016 and 1998 were strong El Nino years.

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