Global temperature, Sep 1966

Global anomaly−0.03°C1951–1980

Rank among all Seps70 / 146warmest first

N. Hemisphere+0.06°C

S. Hemisphere−0.12°C

vs same month last year+0.12°C

CO₂ (Mauna Loa)318.64 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−0.03°C

Same month, previous year−0.15°C

Same month 10 years earlier−0.19°C

Same month 50 years earlier−0.36°C

Sep average 1991–2020+0.58°C

Warmest Sep on record (2023)+1.48°C

Year	Global	NH	SH	Rank
1956	−0.19°C	−0.32°C	−0.08°C	108
1957	+0.09°C	+0.13°C	+0.05°C	52
1958	−0.03°C	+0.07°C	−0.12°C	71
1959	−0.06°C	+0.14°C	−0.25°C	77
1960	+0.07°C	+0.12°C	+0.02°C	56
1961	+0.08°C	−0.03°C	+0.19°C	55
1962	±0.00°C	−0.02°C	+0.03°C	67
1963	+0.17°C	+0.13°C	+0.22°C	44
1964	−0.30°C	−0.28°C	−0.31°C	132
1965	−0.15°C	−0.20°C	−0.10°C	97
1966	−0.03°C	+0.06°C	−0.12°C	70
1967	−0.06°C	−0.03°C	−0.10°C	76
1968	−0.19°C	−0.05°C	−0.32°C	107
1969	+0.08°C	+0.04°C	+0.13°C	54
1970	+0.12°C	−0.05°C	+0.28°C	49
1971	−0.05°C	−0.14°C	+0.03°C	73
1972	+0.02°C	−0.26°C	+0.31°C	64
1973	+0.09°C	−0.09°C	+0.26°C	51
1974	−0.08°C	−0.16°C	±0.00°C	81
1975	−0.02°C	−0.08°C	+0.02°C	69
1976	−0.06°C	−0.12°C	±0.00°C	75

Rank 881 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.