Global temperature, May 1939

Global anomaly−0.05°C1951–1980

Rank among all Mays77 / 147warmest first

N. Hemisphere±0.00°C

S. Hemisphere−0.10°C

vs same month last year+0.05°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−0.05°C

Same month, previous year−0.10°C

Same month 10 years earlier−0.38°C

Same month 50 years earlier−0.02°C

May average 1991–2020+0.58°C

Warmest May on record (2024)+1.16°C

Year	Global	NH	SH	Rank
1929	−0.38°C	−0.27°C	−0.48°C	136
1930	−0.24°C	−0.20°C	−0.28°C	111
1931	−0.20°C	−0.14°C	−0.22°C	104
1932	−0.18°C	−0.11°C	−0.25°C	98
1933	−0.29°C	−0.26°C	−0.32°C	121
1934	−0.10°C	+0.07°C	−0.27°C	87
1935	−0.29°C	−0.29°C	−0.29°C	120
1936	−0.16°C	−0.01°C	−0.31°C	95
1937	−0.06°C	+0.11°C	−0.23°C	80
1938	−0.10°C	+0.02°C	−0.22°C	86
1939	−0.05°C	±0.00°C	−0.10°C	77
1940	+0.11°C	+0.15°C	+0.07°C	58
1941	+0.16°C	+0.23°C	+0.13°C	52
1942	+0.11°C	+0.16°C	+0.06°C	57
1943	+0.06°C	+0.22°C	−0.10°C	63
1944	+0.18°C	+0.23°C	+0.14°C	50
1945	+0.06°C	+0.08°C	+0.05°C	62
1946	−0.07°C	+0.03°C	−0.17°C	82
1947	−0.02°C	+0.07°C	−0.10°C	69
1948	−0.01°C	+0.17°C	−0.18°C	68
1949	−0.10°C	±0.00°C	−0.20°C	85

Rank 941 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.