This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Sommar ankomst. en Number of weeks summer has arrived early or late compared to the average for the period for four Swedish weather stations sv Antal veckor som sommar ar kommit tidigt eller sent jmfrt med genomsnittet fr perioden fr fyra vderstationer own Gregords PDineligible Cczero Unidentified diagrams Time diagrams Climate