I recently attended a lawn care class called “Turf for the Cheap and Lazy”.  I was surprised at how many homeowners mow their lawn when it’s wet.  This is not a good practice as it puts added stress on our turf.  Also, if because of frequent rainfall, your grass gets 6” or more in height, don’t take off more than 2” if possible.  Setting your cutting height higher will produce denser turf, resulting in fewer weeds and a deeper root system (thus requiring less water).  Obviously, this wouldn’t apply if you have a dwarf turf variety.