Global temperature, May 2023

Global anomaly+0.94°C1951–1980

Rank among all Mays6 / 147warmest first

N. Hemisphere+1.13°C

S. Hemisphere+0.75°C

vs same month last year+0.10°C

CO₂ (Mauna Loa)424.00 ppm

All months of 2023

Jan+0.88°C

Feb+0.97°C

Mar+1.23°C

Apr+0.99°C

May ◀+0.94°C

Jun+1.09°C

Jul+1.19°C

Aug+1.19°C

Sep+1.48°C

Oct+1.35°C

Nov+1.40°C

Dec+1.36°C

This month+0.94°C

Same month, previous year+0.84°C

Same month 10 years earlier+0.60°C

Same month 50 years earlier+0.23°C

May average 1991–2020+0.58°C

Warmest May on record (2024)+1.16°C

Year	Global	NH	SH	Rank
2013	+0.60°C	+0.77°C	+0.43°C	21
2014	+0.87°C	+0.90°C	+0.83°C	8
2015	+0.80°C	+1.05°C	+0.55°C	12
2016	+0.96°C	+1.11°C	+0.81°C	5
2017	+0.91°C	+0.93°C	+0.90°C	7
2018	+0.81°C	+1.01°C	+0.61°C	11
2019	+0.86°C	+1.02°C	+0.71°C	9
2020	+0.99°C	+1.26°C	+0.72°C	4
2021	+0.79°C	+1.05°C	+0.53°C	13
2022	+0.84°C	+1.03°C	+0.65°C	10
2023	+0.94°C	+1.13°C	+0.75°C	6
2024	+1.16°C	+1.45°C	+0.88°C	1
2025	+1.08°C	+1.22°C	+0.94°C	3
2026	+1.13°C	+1.30°C	+0.97°C	2

Rank 75 of all 1760 months on record. Temperatures are anomalies vs the 1951–1980 average (NASA GISTEMP v4); values can be revised later.