{
  "北京": {
    "spring_doy": 86,
    "summer_doy": 136,
    "autumn_doy": 255,
    "winter_doy": 305
  },
  "上海": {
    "spring_doy": 65,
    "summer_doy": 148,
    "autumn_doy": 277,
    "winter_doy": 333
  },
  "广州": {
    "spring_doy": 1,
    "summer_doy": 98,
    "autumn_doy": 312,
    "winter_doy": null
  },
  "深圳": {
    "spring_doy": 1,
    "summer_doy": 80,
    "autumn_doy": 314,
    "winter_doy": null
  },
  "成都": {
    "spring_doy": 54,
    "summer_doy": 131,
    "autumn_doy": 265,
    "winter_doy": 333
  },
  "武汉": {
    "spring_doy": 58,
    "summer_doy": 131,
    "autumn_doy": 276,
    "winter_doy": 331
  },
  "西安": {
    "spring_doy": 65,
    "summer_doy": 135,
    "autumn_doy": 258,
    "winter_doy": 315
  },
  "南京": {
    "spring_doy": 64,
    "summer_doy": 137,
    "autumn_doy": 275,
    "winter_doy": 326
  },
  "青岛": {
    "spring_doy": 93,
    "summer_doy": 166,
    "autumn_doy": 263,
    "winter_doy": 324
  },
  "哈尔滨": {
    "spring_doy": 118,
    "summer_doy": 174,
    "autumn_doy": 219,
    "winter_doy": 276
  },
  "乌鲁木齐": {
    "spring_doy": 94,
    "summer_doy": 156,
    "autumn_doy": 227,
    "winter_doy": 273
  },
  "昆明": {
    "spring_doy": 1,
    "summer_doy": null,
    "autumn_doy": 31,
    "winter_doy": 347
  }
}