Global temperature, Mar 1999

Global anomaly+0.33°C1951–1980

Rank among all Mars39 / 147warmest first

N. Hemisphere+0.29°C

S. Hemisphere+0.36°C

vs same month last year−0.30°C

CO₂ (Mauna Loa)369.84 ppm

All months of 1999

Jan+0.48°C

Feb+0.64°C

Mar ◀+0.33°C

Apr+0.32°C

May+0.26°C

Jun+0.36°C

Jul+0.39°C

Aug+0.31°C

Sep+0.39°C

Oct+0.34°C

Nov+0.37°C

Dec+0.40°C

This month+0.33°C

Same month, previous year+0.63°C

Same month 10 years earlier+0.36°C

Same month 50 years earlier−0.02°C

Mar average 1991–2020+0.69°C

Warmest Mar on record (2024)+1.40°C

Year	Global	NH	SH	Rank
1989	+0.36°C	+0.45°C	+0.26°C	38
1990	+0.80°C	+1.16°C	+0.42°C	15
1991	+0.36°C	+0.46°C	+0.25°C	37
1992	+0.48°C	+0.54°C	+0.42°C	32
1993	+0.36°C	+0.39°C	+0.33°C	36
1994	+0.29°C	+0.49°C	+0.09°C	42
1995	+0.47°C	+0.59°C	+0.34°C	34
1996	+0.33°C	+0.32°C	+0.33°C	40
1997	+0.52°C	+0.74°C	+0.29°C	30
1998	+0.63°C	+0.72°C	+0.54°C	24
1999	+0.33°C	+0.29°C	+0.36°C	39
2000	+0.55°C	+0.84°C	+0.25°C	28
2001	+0.55°C	+0.76°C	+0.34°C	27
2002	+0.88°C	+1.11°C	+0.64°C	14
2003	+0.60°C	+0.66°C	+0.53°C	25
2004	+0.63°C	+0.87°C	+0.39°C	23
2005	+0.74°C	+0.95°C	+0.54°C	18
2006	+0.63°C	+0.78°C	+0.48°C	22
2007	+0.71°C	+0.93°C	+0.49°C	19
2008	+0.75°C	+1.14°C	+0.35°C	17
2009	+0.53°C	+0.58°C	+0.48°C	29

Rank 429 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.