-- For the locations in the contiguous U.S. examined in this study, the past six years (POR 2011 - 2016) have
seen average annual temperatures that are 1.2 °F above the current 30 - year climatological average used by NOAA (1981 - 2010).
As greenhouse gases continue to accumulate in the atmosphere and trap heat, Alaska could
see its average annual temperature rise another 6 °F to 12 °F (3 °C to 7 °C) by the end of the century depending on the location.
Not exact matches
seems to be incompatible with the statement from his
Annual review paper from 2000 (
see abstract below) that: «The
average surface
temperature of the continents has increased by about 1.0 K over the past 5 centuries; half of this increase has occurred in the twentieth century alone.»
Although differing somewhat spatially and seasonally, the warming trend is
seen across all
temperature variables, including
annual average, maximum, and minimum
temperatures.
The region has an
average annual temperature of only 9 degrees; however, summers have been known to
see the mercury rising to 38 degrees.
Now I've
seen mentions that (strong) El Nino years will make the global
annual average higher — e.g. 1998 was so warm partly because of El Nino, and that this is due to the fact that sub-surface warmer water is brought up and allowed to affect the air
temperature.
seems to be incompatible with the statement from his
Annual review paper from 2000 (
see abstract below) that: «The
average surface
temperature of the continents has increased by about 1.0 K over the past 5 centuries; half of this increase has occurred in the twentieth century alone.»
I think that you will find that even a 5deg C increase in
annual average temperature will still
see average temperature way below zero at the South Pole, and probably the same in Greenland.
Its as if someone started of with the premise that the fluctuations
seen in
annual temperature averages follow a cyclical pattern.
The sudden change in minimum
temperature differences between Perth Metro and Perth Airport from 1997 can be
seen in
average annual minima recorded at both weather stations.
On March 24, 2016, just four days after the end of astronomical winter [6]-- which
saw temperatures from 11 to 14 °F above
average in the central Arctic — sea ice in the Arctic hit 5.607 million mi ² (14.52 million km ²), its lowest
annual maximum since records began in 1979.
Similarly,
see Roger Pielke Sr. posts on «Global
Average Surface
Temperature» Especially: Climate Science Myths And Misconceptions — Post # 1 On The Global
Annual Average Surface
Temperature Trend
As was widely covered in the media, 2014
saw the highest
annual average global surface
temperature since records began, the report says:
See a list of global
average annual temperatures here.
Furthermore, if we look at the SH non-smoothed
annual datafile and accept that the years 1944 - 1945 were the beginning of a trend - shift for global
temperatures, we
see that in these years the southern hemispheric
average temperature was about 14.02 C and 13.96 C, respectively (assuming a 14C value for the» 61 - ’90 SH
average, I don't have any better value but it doesn't matter very much).
On top of that, 2012
saw three extreme cold NH winter months (Jan, Feb, Dec in Eurasia) which acted to decease the
annual average global
temperature by approx. 0.1 K (refers to what I've just mentioned in the first paragraph).
The polar regions are particularly sensitive to small rises in the
annual average temperature, they are sometimes referred to as «the canary in the coalmine» in that they show changes long before they can be
seen elsewhere in the world.
Record droughts in many areas of the world, the loss of arctic sea ice — what you
see is an increasing trend that is superimposed on
annual variablity (no bets on what happens next year, but the five - to - ten year
average in global
temperatures, sea surface
temperatures, ocean heat content — those will increase — and ice sheet volumes, tropical glacier volumes, sea ice extent will decrease.
In fact I've
seen a complete 1 degree C
average annual change in amplitude of
temperature.
You can
see this in the figure below, which maps projected changes in
annual average temperature in a 2C warmer world.