Temperatures were above average across most of North and South America as well as Europe,according to the September 2024 U.S. and Global Climate Reports.

Globally, temperatures averaged cooler than September 2023 temperatures, ending a 15-month record streak of record warm global temperatures.

The year-to-date global temperature was the warmest such period on record, with North America, South America, Europe and Africa each ranking first, according to the report issued by the National Centers for Environmental Information.

The contiguous U.S. was second warmest on record with record warm conditions blanketing portions of the northern Plains, Upper Midwest and southern Florida.

Year-to-date temperatures across the contiguous U.S. averaged the second warmest on record.

The September global surface temperature was 2.23°F (1.24°C) above the 20th-century average of 59.0°F (15.0°C), making it the second warmest September on record, the report added, noting the value was 0.34°F (0.19°C) cooler than what was observed during September 2023.

According to NCEI’s Global Annual Temperature Outlook, there is a 99.8% percent chance that 2024 will rank as the warmest year on record.

The average temperature of the contiguous U.S. in September was 68.6°F, 3.8°F above average, ranking second warmest in the 130-year record.

Generally, September temperatures were above average across much of the contiguous U.S., with near average temperatures observed from portions of central Texas to the central Atlantic Coast. Arizona, Wyoming, North Dakota, South Dakota and Minnesota each ranked warmest on record for September.