Wednesday, March 08, 2017

Continental US Had Its 2nd-Warmest February

This February was the second-warmest in the continental US records (going back to 1895), after 1954.

That looks strange, 1954, but it was 0.25°F warmer then.

Still, this February's anomaly was 5.85°F above the 1980-2010 baseline, and 7.34°F above the 1901-2000 baseline. (Hey, it's NOAA who uses Fahrenheit; don't blame me.)

The 30-year trend is 0.47°F/decade. That's right, we're warming at almost half-degree every 10 years. It's 0.26°C/decade, or about 50% faster than the globe as a whole is warming. That's a pretty good rule for land warming versus global warming in the middle latitudes, and one I don't think the public is yet aware of.

So while the Paris Agreement tries to limit global warming to 2°C, that's 5.4°F in the continental US. And it's almost too late for the 2°C limit to hold, so USA48 could see at least 6°F of warming.

Except in the Pacific Northwest. Salem, Oregon was slightly below average last month, and we had 13.44 inches of rain in February, a record. That's 341 mm, if you must know.

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