Global temperature, Dec 1918

Global anomaly−0.30°C1951–1980

Rank among all Decs123 / 146warmest first

N. Hemisphere−0.56°C

S. Hemisphere−0.02°C

vs same month last year+0.38°C

CO₂ (Mauna Loa)–

All months of 1918

Jan−0.48°C

Feb−0.35°C

Mar−0.26°C

Apr−0.45°C

May−0.43°C

Jun−0.37°C

Jul−0.32°C

Aug−0.32°C

Sep−0.17°C

Oct−0.06°C

Nov−0.12°C

Dec ◀−0.30°C

This month−0.30°C

Same month, previous year−0.68°C

Same month 10 years earlier−0.50°C

Dec average 1991–2020+0.60°C

Warmest Dec on record (2023)+1.36°C

Year	Global	NH	SH	Rank
1908	−0.50°C	−0.56°C	−0.45°C	140
1909	−0.57°C	−0.57°C	−0.57°C	143
1910	−0.68°C	−0.82°C	−0.55°C	145
1911	−0.23°C	−0.31°C	−0.13°C	112
1912	−0.44°C	−0.58°C	−0.30°C	136
1913	−0.04°C	+0.10°C	−0.18°C	73
1914	−0.05°C	−0.06°C	−0.03°C	77
1915	−0.22°C	−0.24°C	−0.20°C	111
1916	−0.82°C	−1.13°C	−0.53°C	146
1917	−0.68°C	−1.06°C	−0.31°C	144
1918	−0.30°C	−0.56°C	−0.02°C	123
1919	−0.43°C	−0.56°C	−0.30°C	134
1920	−0.47°C	−0.72°C	−0.22°C	138
1921	−0.18°C	−0.13°C	−0.23°C	105
1922	−0.20°C	−0.16°C	−0.25°C	107
1923	−0.04°C	+0.11°C	−0.17°C	72
1924	−0.43°C	−0.36°C	−0.51°C	133
1925	+0.06°C	+0.23°C	−0.09°C	59
1926	−0.30°C	−0.30°C	−0.28°C	122
1927	−0.33°C	−0.37°C	−0.27°C	128
1928	−0.16°C	−0.03°C	−0.29°C	100

Rank 1499 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.