Global temperature in the 1930s

Decade average−0.12°C1951–1980

vs previous decade+0.12°C

Warmest year1938−0.01°C

CO₂ average–Mauna Loa

Each year

1930−0.16°C

1931−0.09°C

1932−0.16°C

1933−0.29°C

1934−0.13°C

1935−0.20°C

1936−0.15°C

1937−0.03°C

1938−0.01°C

1939−0.02°C

Year	Global	NH	SH	Rank
1930	−0.16°C	−0.01°C	−0.29°C	99
1931	−0.09°C	+0.05°C	−0.22°C	83
1932	−0.16°C	−0.06°C	−0.26°C	100
1933	−0.29°C	−0.26°C	−0.32°C	127
1934	−0.13°C	−0.01°C	−0.26°C	93
1935	−0.20°C	−0.10°C	−0.30°C	110
1936	−0.15°C	−0.04°C	−0.26°C	97
1937	−0.03°C	+0.11°C	−0.18°C	73
1938	−0.01°C	+0.16°C	−0.18°C	68
1939	−0.02°C	+0.08°C	−0.13°C	70

1880s−0.22°C

1890s−0.24°C

1900s−0.32°C

1910s−0.34°C

1920s−0.24°C

1930s ◀−0.12°C

1940s+0.04°C

1950s−0.05°C

1960s−0.03°C

1970s+0.03°C

1980s+0.25°C

1990s+0.39°C

2000s+0.59°C

2010s+0.81°C

2020s+1.07°C

Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.