Global temperature, May 1930

Global anomaly−0.24°C1951–1980

Rank among all Mays111 / 147warmest first

N. Hemisphere−0.20°C

S. Hemisphere−0.28°C

vs same month last year+0.14°C

CO₂ (Mauna Loa)–

All months of 1930

Jan−0.31°C

Feb−0.27°C

Mar−0.11°C

Apr−0.25°C

May ◀−0.24°C

Jun−0.22°C

Jul−0.21°C

Aug−0.15°C

Sep−0.15°C

Oct−0.12°C

Nov+0.17°C

Dec−0.06°C

This month−0.24°C

Same month, previous year−0.38°C

Same month 10 years earlier−0.27°C

Same month 50 years earlier−0.11°C

May average 1991–2020+0.58°C

Warmest May on record (2024)+1.16°C

Year	Global	NH	SH	Rank
1920	−0.27°C	−0.21°C	−0.33°C	116
1921	−0.30°C	−0.24°C	−0.36°C	124
1922	−0.33°C	−0.18°C	−0.48°C	129
1923	−0.34°C	−0.39°C	−0.29°C	131
1924	−0.18°C	−0.06°C	−0.30°C	99
1925	−0.29°C	−0.22°C	−0.36°C	122
1926	−0.23°C	−0.22°C	−0.22°C	107
1927	−0.26°C	−0.14°C	−0.38°C	114
1928	−0.30°C	−0.17°C	−0.41°C	123
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

Rank 1365 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.