Global temperature, Jan 1966

Global anomaly−0.19°C1951–1980

Rank among all Jans99 / 147warmest first

N. Hemisphere−0.25°C

S. Hemisphere−0.12°C

vs same month last year−0.11°C

CO₂ (Mauna Loa)320.62 ppm

All months of 1966

Jan ◀−0.19°C

Feb−0.04°C

Mar+0.03°C

Apr−0.13°C

May−0.12°C

Jun+0.01°C

Jul+0.08°C

Aug−0.09°C

Sep−0.03°C

Oct−0.17°C

Nov−0.01°C

Dec−0.03°C

This month−0.19°C

Same month, previous year−0.08°C

Same month 10 years earlier−0.13°C

Same month 50 years earlier−0.14°C

Jan average 1991–2020+0.63°C

Warmest Jan on record (2025)+1.38°C

Year	Global	NH	SH	Rank
1956	−0.13°C	−0.04°C	−0.23°C	93
1957	−0.09°C	−0.13°C	−0.04°C	88
1958	+0.39°C	+0.69°C	+0.10°C	35
1959	+0.08°C	+0.24°C	−0.08°C	63
1960	±0.00°C	+0.16°C	−0.16°C	73
1961	+0.07°C	+0.17°C	−0.03°C	65
1962	+0.05°C	+0.28°C	−0.18°C	71
1963	−0.03°C	+0.08°C	−0.14°C	79
1964	−0.09°C	−0.04°C	−0.13°C	87
1965	−0.08°C	−0.02°C	−0.15°C	85
1966	−0.19°C	−0.25°C	−0.12°C	99
1967	−0.08°C	−0.18°C	+0.03°C	84
1968	−0.26°C	−0.29°C	−0.23°C	112
1969	−0.11°C	−0.43°C	+0.22°C	91
1970	+0.08°C	−0.03°C	+0.20°C	62
1971	−0.02°C	−0.15°C	+0.09°C	76
1972	−0.22°C	−0.54°C	+0.10°C	104
1973	+0.29°C	+0.15°C	+0.44°C	43
1974	−0.10°C	−0.26°C	+0.05°C	89
1975	+0.10°C	+0.16°C	+0.04°C	59
1976	−0.03°C	+0.05°C	−0.12°C	78

Rank 1242 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.