Global temperature, Oct 1921

Global anomaly−0.03°C1951–1980

Rank among all Octs81 / 146warmest first

N. Hemisphere±0.00°C

S. Hemisphere−0.05°C

vs same month last year+0.24°C

CO₂ (Mauna Loa)–

All months of 1921

Jan−0.05°C

Feb−0.18°C

Mar−0.23°C

Apr−0.30°C

May−0.30°C

Jun−0.27°C

Jul−0.15°C

Aug−0.27°C

Sep−0.19°C

Oct ◀−0.03°C

Nov−0.15°C

Dec−0.18°C

This month−0.03°C

Same month, previous year−0.27°C

Same month 10 years earlier−0.27°C

Oct average 1991–2020+0.62°C

Warmest Oct on record (2024)+1.35°C

Year	Global	NH	SH	Rank
1911	−0.27°C	−0.19°C	−0.35°C	129
1912	−0.59°C	−0.85°C	−0.31°C	146
1913	−0.33°C	−0.40°C	−0.25°C	136
1914	−0.04°C	−0.01°C	−0.06°C	84
1915	−0.25°C	−0.27°C	−0.22°C	123
1916	−0.33°C	−0.35°C	−0.33°C	135
1917	−0.45°C	−0.63°C	−0.28°C	144
1918	−0.06°C	−0.05°C	−0.07°C	91
1919	−0.20°C	−0.09°C	−0.32°C	111
1920	−0.27°C	−0.40°C	−0.14°C	128
1921	−0.03°C	±0.00°C	−0.05°C	81
1922	−0.31°C	−0.30°C	−0.34°C	134
1923	−0.13°C	+0.07°C	−0.32°C	102
1924	−0.35°C	−0.23°C	−0.47°C	137
1925	−0.17°C	−0.09°C	−0.24°C	107
1926	−0.11°C	+0.07°C	−0.27°C	98
1927	−0.01°C	+0.25°C	−0.25°C	78
1928	−0.19°C	−0.09°C	−0.29°C	109
1929	−0.14°C	−0.02°C	−0.26°C	104
1930	−0.12°C	+0.02°C	−0.23°C	101
1931	+0.06°C	+0.37°C	−0.25°C	66

Rank 894 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.