Global temperature, Apr 1940

Global anomaly+0.17°C1951–1980

Rank among all Aprs52 / 147warmest first

N. Hemisphere+0.27°C

S. Hemisphere+0.08°C

vs same month last year+0.27°C

CO₂ (Mauna Loa)–

All months of 1940

Jan−0.01°C

Feb+0.08°C

Mar+0.09°C

Apr ◀+0.17°C

May+0.11°C

Jun+0.11°C

Jul+0.12°C

Aug+0.06°C

Sep+0.15°C

Oct+0.11°C

Nov+0.16°C

Dec+0.31°C

This month+0.17°C

Same month, previous year−0.10°C

Same month 10 years earlier−0.25°C

Same month 50 years earlier−0.30°C

Apr average 1991–2020+0.63°C

Warmest Apr on record (2024)+1.32°C

Year	Global	NH	SH	Rank
1930	−0.25°C	−0.15°C	−0.34°C	110
1931	−0.23°C	−0.20°C	−0.23°C	107
1932	−0.06°C	+0.10°C	−0.21°C	79
1933	−0.24°C	−0.17°C	−0.32°C	109
1934	−0.31°C	−0.29°C	−0.33°C	122
1935	−0.38°C	−0.36°C	−0.39°C	133
1936	−0.21°C	−0.07°C	−0.34°C	102
1937	−0.16°C	−0.07°C	−0.25°C	95
1938	+0.06°C	+0.31°C	−0.20°C	65
1939	−0.10°C	−0.09°C	−0.13°C	84
1940	+0.17°C	+0.27°C	+0.08°C	52
1941	+0.16°C	+0.12°C	+0.22°C	54
1942	+0.09°C	+0.08°C	+0.10°C	60
1943	+0.11°C	+0.31°C	−0.11°C	59
1944	+0.19°C	+0.18°C	+0.21°C	49
1945	+0.20°C	+0.30°C	+0.10°C	47
1946	+0.06°C	+0.32°C	−0.21°C	64
1947	+0.06°C	+0.23°C	−0.11°C	63
1948	−0.12°C	−0.03°C	−0.21°C	88
1949	−0.11°C	−0.03°C	−0.19°C	86
1950	−0.21°C	−0.22°C	−0.20°C	101

Rank 579 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.