National Weather Service staff in the Twin Cities have not said anything about the new record warm summer average minimum temperature
in 2006 at Minneapolis.

The June through August average daily minimum temperature plot for Minneapolis (1891-2006) shows that the 2006 average summer minimum temperature (64.8 Deg F) was the highest of record, topping the previous high Jun-Aug average minimum temperature (64.6 Deg F) set in 1933.

Increasing overnight minimum temperatures are a global warming signature. NWS Weather Forecast offices have said nothing to the public about global warming either.