The combined global land and
ocean average surface temperature for June 2017 was one the warmest on record.
-- The combined global land and
ocean average surface temperature for the December — February period was 0.41 °C (0.74 °F) above the 20th century average of 12.1 °C (53.8 °F), making it the 17th warmest such period on record and the coolest December — February since 2008.
During the final month, the December combined global land and
ocean average surface temperature was the third highest for December in the 137 - year record.
During the final month, the December combined global land and
ocean average surface temperature was the highest on record for any month in the 136 - year record.
NOAA said the combined global land and
ocean average surface temperature for the January - October period was 0.68 °C (1.22 °F) above the 20th century average of 14.1 °C (57.4 °F).
And also also by the way June 2012 had the highest land and
ocean average surface temperatures in the northern hemisphere in recorded history.
Not exact matches
So as soon as the hail of asteroids stopped, Earth may have cooled to an
average surface temperature of — 40 °F and a crust of ice as much as 1,000 feet thick may have covered the
oceans.
As of March 2013,
surface waters of the tropical north Atlantic
Ocean remained warmer than
average, while Pacific
Ocean temperatures declined from a peak in late fall.
Land and
Ocean Combined: The combined average temperature over global land and ocean surfaces for August 2014 was the record highest for the month, at 61.45 °F (16.35 °C), or 1.35 °F (0.75 °C) above the 20th century average of 60.1 °F (15.6
Ocean Combined: The combined
average temperature over global land and
ocean surfaces for August 2014 was the record highest for the month, at 61.45 °F (16.35 °C), or 1.35 °F (0.75 °C) above the 20th century average of 60.1 °F (15.6
ocean surfaces for August 2014 was the record highest for the month, at 61.45 °F (16.35 °C), or 1.35 °F (0.75 °C) above the 20th century
average of 60.1 °F (15.6 °C).
The global
average temperature over land and
ocean surfaces for January to October 2014 was the highest on record, according to the U.S. National Oceanic and Atmospheric Administration (NOAA).
According to NOAA scientists, the globally
averaged temperature over land and
ocean surfaces for August 2014 was the highest for August since record keeping began in 1880.
Ocean Only: The August global sea
surface temperature was 1.17 °F (0.65 °C) above the 20th century
average of 61.4 °F (16.4 °C), the highest on record for August.
Ocean Only: The global ocean surface temperature for the year to date was 0.99 °F (0.55 °C) above average, tying with 2010 as the second warmest such period on record, behind only
Ocean Only: The global
ocean surface temperature for the year to date was 0.99 °F (0.55 °C) above average, tying with 2010 as the second warmest such period on record, behind only
ocean surface temperature for the year to date was 0.99 °F (0.55 °C) above
average, tying with 2010 as the second warmest such period on record, behind only 1998.
Ocean Only: The June - August global sea
surface temperature was 1.13 °F (0.63 °C), above the 20th century
average of 61.5 °F (16.4 °C), the highest for June - August on record.
The visualization shows how the 1997 event started from colder - than -
average sea
surface temperatures — but the 2015 event started with warmer - than -
average temperatures not only in the Pacific but also in in the Atlantic and Indian
Oceans.
The CPC officially considers it an event when the sea
surface temperatures in a key region of the
ocean reach at least 0.5 °C, or about 1 °F, warmer than
average.
El Niño is characterized by a large area of warmer - than -
average ocean surface temperatures in the central and eastern Pacific.
The June 2013 globally -
averaged temperature across
ocean surfaces was the 10th highest in the 134 - year period of record, at 0.48 °C (0.86 °F) above the 20th century
average.
With higher levels of carbon dioxide and higher
average temperatures, the
oceans»
surface waters warm and sea ice disappears, and the marine world will see increased stratification, intense nutrient trapping in the deep Southern
Ocean (also known as the Antarctic
Ocean) and nutrition starvation in the other
oceans.
With records dating back to 1880, the global
temperature across the world's land and
ocean surfaces for August 2014 was 0.75 °C (1.35 °F) higher than the 20th century
average of 15.6 °C (60.1 °F).
With ENSO - neutral conditions present during the first half of 2013, the January — June global
temperature across land and
ocean surfaces tied with 2003 as the seventh warmest such period, at 0.59 °C (1.06 °F) above the 20th century
average.
Global mean
temperatures averaged over land and
ocean surfaces, from three different estimates, each of which has been independently adjusted for various homogeneity issues, are consistent within uncertainty estimates over the period 1901 to 2005 and show similar rates of increase in recent decades.
Each layer of water can have drastically different
temperatures, so determining the
average over the entirety of the
ocean's
surface and depths presents a challenge.
The annually -
averaged temperature for
ocean surfaces around the world was 0.74 °C (1.33 °F) higher than the 20th century
average, easily breaking the previous record of 2014 by 0.11 °C (0.20 °F).
These rising atmospheric greenhouse gas concentrations have led to an increase in global
average temperatures of ~ 0.2 °C decade — 1, much of which has been absorbed by the
oceans, whilst the oceanic uptake of atmospheric CO2 has led to major changes in
surface ocean pH (Levitus et al., 2000, 2005; Feely et al., 2008; Hoegh - Guldberg and Bruno, 2010; Mora et al., 2013; Roemmich et al., 2015).
The 1901 - 2000
average combined land and
ocean annual
temperature is 13.9 °C (56.9 °F), the annually
averaged land
temperature for the same period is 8.5 °C (47.3 °F), and the long - term annually
averaged sea
surface temperature is 16.1 °C (60.9 °F).
With the contribution of such record warmth at year's end and with 10 months of the year record warm for their respective months, including the last 8 (January was second warmest for January and April was third warmest), the
average global
temperature across land and
ocean surface areas for 2015 was 0.90 °C (1.62 °F) above the 20th century
average of 13.9 °C (57.0 °F), beating the previous record warmth of 2014 by 0.16 °C (0.29 °F).
The warmth was due to the near - record strong El Niño that developed during the Northern Hemisphere spring in the eastern and central equatorial Pacific
Ocean and to large regions of record warm and much warmer - than - average sea surface temperatures in parts of every major ocean b
Ocean and to large regions of record warm and much warmer - than -
average sea
surface temperatures in parts of every major
ocean b
ocean basin.
The globally
averaged temperature over land and
ocean surfaces for February 2017 was the second highest for the month.
Across the world's
oceans, the September — November
average sea
surface temperature was 0.84 °C (1.51 °F) above the 20th century
average of 16.0 °C (60.7 °F), the highest for September — November on record, surpassing the previous record set last year by 0.27 °C (0.15 °F).
(1) The warm sea
surface temperatures are not just some short - term anomaly but are part of a long - term observed warming trend, in which
ocean temperatures off the US east coast are warming faster than global
average temperatures.
Most of Earth's land
surfaces were warmer than
average or much warmer than
average, according to the Land &
Ocean Temperature Percentiles map above, with record warmth notable across most of equatorial and northeastern South America and parts of southeastern Asia.
For the
oceans, the November global sea
surface temperature was 0.84 °C (1.51 °F) above the 20th century
average of 15.8 °C (60.4 °F), the highest for November on record, surpassing the previous record set last year by 0.20 °C (0.36 °F).
The globally
averaged temperature over land and
ocean surfaces for March 2017 was the second highest for the month.
The December 2015 globally -
averaged temperature across land and
ocean surfaces was 1.11 °C (2.00 °F) above the 20th century
average of 12.2 °C (54.0 °F), the highest for any month since records began in 1880, surpassing the previous all - time record set two months ago in October by 0.12 °C (0.21 °F).
The June globally
averaged sea
surface temperature was 1.39 °F above the 20th century monthly
average of 61.5 °F — the highest global
ocean temperature for June in the 1880 — 2016 record, surpassing the previous record set in 2015 by 0.05 °F.
The year - to - date
temperature across global land and
ocean surfaces was 1.89 °F above the 20th century
average of 56.3 °F.
The May globally
averaged sea
surface temperature was 1.37 °F above the 20th century monthly
average of 61.3 °F — the highest global
ocean temperature for May in the 1880 — 2016 record, surpassing the previous record set in 2015 by 0.09 °F.
The June — August
average temperature across global land and
ocean surfaces was 1.60 °F above the 20th century
average of 60.1 °F.
Much warmer - than -
average temperatures engulfed most of the world's
oceans during June 2016, with record high sea
surface temperatures across parts of the central and southwest Pacific
Ocean, northwestern and southwestern Atlantic
Ocean, and across parts of the northeastern Indian
Ocean.
The August
temperature across global land and
ocean surfaces was 1.66 °F above the 20th century
average of 60.1 °F.
Similar to the March — May global land and
ocean surface temperature, the March — May land
surface temperature was also the fourth highest three - month departure from
average for any three - month period on record.
The April
temperature across global land and
ocean surfaces was 1.98 °F above the 20th century
average of 56.7 °F.
The April globally
averaged sea
surface temperature was 1.44 °F above the 20th century monthly
average of 60.9 °F — the highest global
ocean temperature for April in the 1880 — 2016 record, surpassing the previous record set in 2015 by 0.25 °F and besting 1998, the last time a similar strength El Niño occurred, by 0.43 °F.
The July globally
averaged sea
surface temperature was 1.42 °F above the 20th century monthly
average of 61.5 °F — the highest global
ocean temperature for July in the 1880 — 2016 record, surpassing the previous record set in 2015 by 0.07 °F.
The July
temperature across global land and
ocean surfaces was 1.57 °F above the 20th century
average of 60.4 °F.
The May
temperature across global land and
ocean surfaces was 1.57 °F above the 20th century
average of 58.6 °F.
The globally
averaged temperature over land and
ocean surfaces for 2015 was the highest among all years since record keeping began in 1880.
Through the first 10 months of this year, the
temperature of combined land and
ocean surfaces is 0.86 °C (1.55 °F) above the 20th century
average.
The September globally
averaged sea
surface temperature was 1.33 °F above the 20th century monthly
average of 61.1 °F, tying with 2014 as the second highest global
ocean temperature for September in the 1880 — 2016 record, behind 2015 by 0.16 °F.