I update the GISTEMP records every month, but I missed writing up April’s monthly summary. Real-world events have set my priorities elsewhere and this May 2017 write-up is a couple of weeks overdue. Monthly updates are probably overkill anyway, especially when there are no dramatic changes taking place.

Here is how May’s monthly global average looked relative to all months since January 1998.

May 2017 was the second-warmest May anomaly ever and was in the top 16 22 or so of all months ever recorded. Continue reading →