Saturday, May 16, 2020

Cold April in North America, but warm elsewhere

Happy Saturday, everyone! I hope you find a way to get outside and enjoy today's fantastic, more seasonable weather. I did a nice bike ride with my parents today which was great!

If you thought April felt cold this year, you're not wrong. In fact, in Hartford, CT the mean temperature for the month was 46.1 °F, making it the 8th coldest April out of 69 years of records. And in Burlington the mean temp was 43.4 °F. However, while April was cold here in the Northeast (and lots of North America as well), it was a warm month for the rest of the world.
Land and ocean temperature departure from average for April 2020 (NCEI)
This map, from the NOAA's National Centers for Environmental Information (NCEI), shows the land and ocean temperature departure from average for April 2020. Notice the large area of dark red in Russia. That's an area where temps were well above normal. According to NCEI, the world as a whole was 1.91 °F warmer in April than the global normal temperature of 56.7 °F. And Aprils since the turn of the century have certainly tended warmer.
Global April temperature anomalies since 1880 (NCEI)
The above graph shows that Aprils have clearly gotten warmer as of recent. It'll be interesting to see how May turns out this year!

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