Spring Cooling: Hamburg’s Forsythia Blossoming Whopping 17 Days Later Than 30 Years Ago! — Iowa Climate Science Education

Forsythia are an indicator plant used by the German DWD Weather Service for marking the beginning of spring in March. The trend of spring blossoming show that springs in Hamburg have been cooling over the past 30 years. The north German port city of Hamburg happens to have a long data series on the the […]

via Spring Cooling: Hamburg’s Forsythia Blossoming Whopping 17 Days Later Than 30 Years Ago! — Iowa Climate Science Education