Global temperature, Jan 1998

Global anomaly+0.58°C1951–1980

Rank among all Jans22 / 147warmest first

N. Hemisphere+0.62°C

S. Hemisphere+0.55°C

vs same month last year+0.26°C

CO₂ (Mauna Loa)365.39 ppm

All months of 1998

Jan ◀+0.58°C

Feb+0.88°C

Mar+0.63°C

Apr+0.64°C

May+0.68°C

Jun+0.77°C

Jul+0.66°C

Aug+0.65°C

Sep+0.42°C

Oct+0.42°C

Nov+0.43°C

Dec+0.55°C

This month+0.58°C

Same month, previous year+0.32°C

Same month 10 years earlier+0.57°C

Same month 50 years earlier+0.06°C

Jan average 1991–2020+0.63°C

Warmest Jan on record (2025)+1.38°C

Year	Global	NH	SH	Rank
1988	+0.57°C	+0.59°C	+0.55°C	23
1989	+0.12°C	+0.08°C	+0.16°C	57
1990	+0.42°C	+0.47°C	+0.36°C	34
1991	+0.43°C	+0.59°C	+0.26°C	33
1992	+0.48°C	+0.61°C	+0.34°C	30
1993	+0.35°C	+0.39°C	+0.30°C	37
1994	+0.26°C	+0.34°C	+0.19°C	45
1995	+0.53°C	+0.75°C	+0.30°C	25
1996	+0.24°C	+0.27°C	+0.22°C	48
1997	+0.32°C	+0.34°C	+0.29°C	38
1998	+0.58°C	+0.62°C	+0.55°C	22
1999	+0.48°C	+0.59°C	+0.37°C	29
2000	+0.25°C	+0.39°C	+0.11°C	47
2001	+0.45°C	+0.56°C	+0.33°C	32
2002	+0.77°C	+1.01°C	+0.51°C	14
2003	+0.75°C	+0.93°C	+0.56°C	18
2004	+0.58°C	+0.66°C	+0.49°C	21
2005	+0.75°C	+0.94°C	+0.55°C	17
2006	+0.56°C	+0.65°C	+0.47°C	24
2007	+1.01°C	+1.45°C	+0.57°C	7
2008	+0.30°C	+0.33°C	+0.26°C	41

Rank 274 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.