Global temperature, Jan 2011

Global anomaly+0.52°C1951–1980

Rank among all Jans28 / 147warmest first

N. Hemisphere+0.62°C

S. Hemisphere+0.42°C

vs same month last year−0.23°C

CO₂ (Mauna Loa)391.50 ppm

All months of 2011

Jan ◀+0.52°C

Feb+0.47°C

Mar+0.65°C

Apr+0.64°C

May+0.53°C

Jun+0.62°C

Jul+0.71°C

Aug+0.74°C

Sep+0.56°C

Oct+0.65°C

Nov+0.60°C

Dec+0.60°C

This month+0.52°C

Same month, previous year+0.75°C

Same month 10 years earlier+0.45°C

Same month 50 years earlier+0.07°C

Jan average 1991–2020+0.63°C

Warmest Jan on record (2025)+1.38°C

Year	Global	NH	SH	Rank
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
2009	+0.65°C	+0.82°C	+0.47°C	20
2010	+0.75°C	+0.80°C	+0.69°C	16
2011	+0.52°C	+0.62°C	+0.42°C	28
2012	+0.47°C	+0.65°C	+0.29°C	31
2013	+0.71°C	+0.85°C	+0.57°C	19
2014	+0.76°C	+0.98°C	+0.54°C	15
2015	+0.86°C	+1.19°C	+0.53°C	11
2016	+1.18°C	+1.56°C	+0.81°C	4
2017	+1.02°C	+1.39°C	+0.65°C	6
2018	+0.82°C	+1.13°C	+0.51°C	13
2019	+0.93°C	+1.19°C	+0.68°C	8
2020	+1.18°C	+1.59°C	+0.76°C	3
2021	+0.82°C	+1.26°C	+0.37°C	12

Rank 307 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.