sunshine hours

November 18, 2013

NOAA/USA – How Far Can You Go Back And Get a Negative Trend For January

Filed under: How Far Can You Go Back,NOAA,USA — sunshinehours1 @ 4:43 AM

Over the last few days I have presented data for Arizona, Washington and Utah showing massive cooling trends in January for the last 15 years.  I did something similar for HADCET last month.

So I thought I would do the same “How Far Can You Go Back” for the lower 48 states for January.  I was somewhat surprised. 20 states have a negative trend from 1895 (the beginning of the NOAA data).

Alabama in January (for example) is cooling at -1.9F/Century since 1895. You can check NOAA’s data here if you like. I did, just to make sure.

The top 6 cooling trends:

From 1983 North Dakota -6.919 F/Century
From 1994 Wyoming -4.992
From 1992 Colorado -4.862
From 1990 Nevada -4.704
From 1983 South Dakota -4.613
From 1986 Kansas -3.344

Click to make the graph bigger:

NOAA - How Far Can You Go Back - January as of 2013

And the distribution:

HIST NOAA - How Far Can You Go Back - January as of 2013


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