Global temperature, May 1964

Global anomaly−0.25°C1951–1980

Rank among all Mays112 / 147warmest first

N. Hemisphere−0.10°C

S. Hemisphere−0.40°C

vs same month last year−0.19°C

CO₂ (Mauna Loa)322.25 ppm

All months of 1964

Jan−0.09°C

Feb−0.10°C

Mar−0.21°C

Apr−0.32°C

May ◀−0.25°C

Jun−0.04°C

Jul−0.04°C

Aug−0.22°C

Sep−0.30°C

Oct−0.31°C

Nov−0.21°C

Dec−0.30°C

This month−0.25°C

Same month, previous year−0.06°C

Same month 10 years earlier−0.20°C

Same month 50 years earlier−0.22°C

May average 1991–2020+0.58°C

Warmest May on record (2024)+1.16°C

Year	Global	NH	SH	Rank
1954	−0.20°C	−0.07°C	−0.33°C	103
1955	−0.20°C	−0.13°C	−0.28°C	102
1956	−0.29°C	−0.30°C	−0.29°C	119
1957	+0.09°C	−0.05°C	+0.23°C	60
1958	+0.06°C	+0.12°C	±0.00°C	61
1959	+0.04°C	+0.04°C	+0.04°C	65
1960	−0.08°C	+0.04°C	−0.19°C	83
1961	+0.12°C	+0.07°C	+0.17°C	55
1962	−0.06°C	+0.02°C	−0.14°C	79
1963	−0.06°C	−0.04°C	−0.07°C	78
1964	−0.25°C	−0.10°C	−0.40°C	112
1965	−0.12°C	−0.14°C	−0.10°C	91
1966	−0.12°C	−0.05°C	−0.19°C	90
1967	+0.12°C	+0.21°C	+0.04°C	54
1968	−0.14°C	−0.06°C	−0.22°C	92
1969	+0.18°C	+0.11°C	+0.26°C	49
1970	−0.03°C	±0.00°C	−0.06°C	73
1971	−0.05°C	−0.12°C	+0.01°C	76
1972	−0.03°C	−0.15°C	+0.10°C	72
1973	+0.23°C	+0.09°C	+0.36°C	45
1974	−0.04°C	−0.19°C	+0.11°C	75

Rank 1378 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.