Sachkere Climate Normals 1991–2020. World Meteorological Organization Climatological Standard Normals (1991–2020). National Oceanic and Atmospheric Administration. [2023-09-02]. (原始内容存档于2023-09-02).
Sachkere Climate Normals 1991–2020. World Meteorological Organization Climatological Standard Normals (1991–2020). National Oceanic and Atmospheric Administration. [2023-09-02]. (原始内容存档于2023-09-02).