Phenological retrospective 2010
2011
Defila, C., MeteoSchweiz, Zuerich (Switzerland)
In 2010, the temperatures were only slightly above the norm; therefore, 2010 was an average phenological year. The spring however started late at the time of coltsfoot flowering, because of the cold temperatures registered until mid March. The following spring phenological phases were observed on average dates. The phenological summer 2010 can be considered as normal or slightly early. During summer, the temperatures were sometimes above the norm. As it is frequently observed, the phenological autumn was inhomogeneous: the phases were either early or late, depending on the station.
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