Wednesday, October 14, 2020

NOAA: Warmest September in Their Records

NOAA just recorded this September as the warmest in their records, 0.97°C (1.75°F) above the 20th-century average of 15.0°C (59.0°F). 

That's 1.20°C (2.16°F) above their earliest 30-year period, 1880-1909. 

If you do a linear fit to their results, the total warming is now 1.06°C (1.91°F), which now rounds to "1.1°C." 

But there's now a nontrivial acceleration to the warming, which (for the entire dataset) is 0.016°C/dec2

More details here. Here's their anomaly map for the month. Notice Siberia.

2 comments:

Entropic man said...

With La Nina under way, looks like 2020 will come in second behind 2016.

David Appell said...

I was a little surprised Sept was a record, with the La Nina already getting underway then.

Here's the weekly SST anomaly in the Nino 3.4 region since July 1st:

7/1/2020 -0.1
7/8/2020 -0.1
7/15/2020 -0.2
7/22/2020 -0.4
7/29/2020 -0.8
8/5/2020 -0.6
8/12/2020 -0.5
8/19/2020 -0.8
8/26/2020 -0.7
9/2/2020 -0.9
9/9/2020 -1.0
9/16/2020 -0.8
9/23/2020 -1.0
9/30/2020 -1.1
10/7/2020 -1.2