It seems like last month (and so far this month) the weather has been truly weird?
It's not your imagination. Over much of the western United States, temperatures have been breaking (and setting) records far ahead of what would be expected. In the month of June alone, more than 1100 new record high temperatures have been set. Ordinarily, for each new record high, somewhere there's a new record low. But record highs have been outnumbering new record lows by more than a two to one margin. And there's much support for the contention that this is a continuing, long term trend. From 1951 to 1980, the chance of an extreme summer was 1 in 300. Since 1981, that chance is now up to 1 in 10. The other aspect of the 'weird' month of June has been rainfall. Over much of the eastern U.S., more than 2100 new rainfall records have been set.