Spring is Sprung

It is officially spring here in the northern hemisphere meteorologically-speaking.   

Meteorological seasons are conveniently divided into tidy calendar months.  The seasons begin on the first day of the months that include the equinoxes and solstices:  Thusly, spring runs from March 1 to May 31; summer runs from June 1 to August 31; fall (autumn) runs from September 1 to November 30; and winter runs from December 1 to February 28 (February 29 in a leap year).   

The astronomical definition uses the dates of equinoxes and solstices to mark the beginning and end of the seasons:  Spring begins on the spring equinox; summer begins on the summer solstice; fall (autumn) begins on the fall equinox; and winter begins on the winter solstice. The beginning of each season marks the end of the last.   

Because the timings of the equinoxes and solstices change each year, the length of astronomical seasons within a year and between years also varies.       

If you want to keep it simple remember this and this alone:  The arrival of the male redwing blackbirds to stake out their breeding territories is a harbinger of spring and has always been my benchmark for the official start.    

If you have sporting dogs in your household this also marks the beginning of mud season.  It is time to hook-up the hoses and turn-on the water supply to the outdoor hose bibs.