National Weather Service United States Department of Commerce

The abnormally warm March of 2012 is still setting records on May 1st. The April 2012 climate data is now complete, and it is official: March was warmer than April!

Temperature records for Detroit go back to 1874, and in those years, once in 1907 the March and April temperatures equaled each other (39.1). 2012 is the first and only year that April (49.4) was cooler than March (50.7).

Looking back at similar temperature abnormalities, there were 5 times in climate history that March was colder than February in Detroit. 6 times June was warmer than July; once August was cooler than September; and once September was cooler than October.  This truly is a rare event.

The same is true for Flint and MBS with March being warmer than April. There are no previous records of this temperature anomaly occurring.


Detroit March April
2012 Avg Temp 50.7 49.4
1907 Avg Temp 39.1 39.1
Normal Temp 37.2 49.2


Flint March April
2012 Avg Temp 49.5 47.3
Normal Temp 34.1 46.1


MBS March April
2012 Avg Temp 48.0 46.9
Normal Temp 33.7 46.1