Global temperature, Oct 1939

Global anomaly−0.04°C1951–1980

Rank among all Octs83 / 146warmest first

N. Hemisphere+0.07°C

S. Hemisphere−0.15°C

vs same month last year−0.18°C

CO₂ (Mauna Loa)–

All months of 1939

Jan−0.06°C

Feb−0.07°C

Mar−0.18°C

Apr−0.10°C

May−0.05°C

Jun−0.07°C

Jul−0.06°C

Aug−0.07°C

Sep−0.08°C

Oct ◀−0.04°C

Nov+0.07°C

Dec+0.42°C

This month−0.04°C

Same month, previous year+0.14°C

Same month 10 years earlier−0.14°C

Same month 50 years earlier−0.26°C

Oct average 1991–2020+0.62°C

Warmest Oct on record (2024)+1.35°C

Year	Global	NH	SH	Rank
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
1932	−0.09°C	+0.14°C	−0.31°C	96
1933	−0.25°C	−0.17°C	−0.33°C	122
1934	−0.07°C	+0.12°C	−0.25°C	94
1935	−0.06°C	+0.11°C	−0.22°C	90
1936	−0.03°C	+0.07°C	−0.13°C	80
1937	+0.08°C	+0.32°C	−0.16°C	62
1938	+0.14°C	+0.31°C	−0.04°C	47
1939	−0.04°C	+0.07°C	−0.15°C	83
1940	+0.11°C	+0.27°C	−0.03°C	53
1941	+0.35°C	+0.50°C	+0.22°C	32
1942	+0.01°C	+0.27°C	−0.25°C	74
1943	+0.23°C	+0.46°C	±0.00°C	41
1944	+0.26°C	+0.44°C	+0.09°C	39
1945	+0.19°C	+0.25°C	+0.13°C	43
1946	−0.08°C	+0.02°C	−0.17°C	95
1947	+0.07°C	+0.40°C	−0.26°C	64
1948	−0.05°C	+0.08°C	−0.18°C	88
1949	−0.07°C	+0.06°C	−0.20°C	93

Rank 914 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.