<li class="main">The combined average temperature over global land and ocean
surfaces for September 2014 was the highest on record for September, at 0.72°C
(1.30°F) above the 20th century average of
15.0°C (59.0°F). <li class="main">
<li class="main">The global land surface temperature was 0.89°C (1.60°F) above
the 20th century average of 12.0°C (53.6°F),
the sixth highest for September on record. For the ocean, the September global
sea surface temperature was 0.66°C (1.19°F) above the 20th century average of 16.2°C (61.1°F), the highest on
record for September and also the highest on record for any month. <li class="main">
<li class="main">The combined global land and ocean average surface temperature
for the January–September period (year-to-date) was 0.68°C (1.22°F) above the
20th century average of 14.1°C (57.5°F), tying
with 1998 as the warmest such period on record. <li class="main">