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NOAA, January 1998. For land and ocean surfaces combined, the average global temperature of the calendar year 1907 is 0·50ºC below the average global temperature of 16·50ºC for the thirty calendar years from 1961 to 1990, such that the annual global temperature of 1907 is 16·00ºC, which is the lowest annual global temperature for any calendar year from 1900 to 1997.
NOAA, January 2017. For land and ocean surfaces combined, the average global temperature of the calendar year 2016 is 0·94ºC above the average global temperature of 13·9ºC for the one-hundred calendar years from 1901 to 2000, such that the annual global temperature of 2016 is 14·84ºC, which is the highest annual global temperature for any calendar year from 1880 to 2016.

Tuesday, 8 August 2017

1893. HadCrut4.

Six claims for the global historical surface temperature anomaly of the January-to-December calendar year 1893, which:- 

Could be as low as, but no lower than, -0·73ºC................Claim #1. 
Could be as low as, but no lower than, -0·62ºC................Claim #2. 
Could be as low as, but no lower than, -0·46ºC................Claim #3 
Could be as high as, but no higher than, -0·22ºC..............Claim #4 
Could be as high as, but no higher than, -0·33ºC..............Claim #5 
Could be as high as, but no higher than, -0·31ºC..............Claim #6

The monthly series of HadCrut4 version 4·0·0·0 entails claims #1 and #4. The annual series of HadCrut4 version 4·0·0·0 entails claims #2 and #5. The annual series of HadCrut4 version 4·0·0·0decadally smoothed by the application of a 21 point binomial filter entails claims #3 and #6. Alternative link for HadCrut4 version 4·0·0·0.

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