anchor.diff:                  "relativeHumidityInPercent": 98,
                   "effectiveCloudCoverInOcta": 5,
                   "totalCloudCoverInOcta": 4,
  -                "visibilityInMeter": 2000.0,
  -                "visibilityInKilometer": 2.0,
  +                "visibilityInMeter": 2000,
  +                "visibilityInKilometer": 2,
                   "visibilityInNauticalMile": 1.0799999,
                   "visibilityInStatuteMile": 1.2427424,
                   "weatherCode": "2",
                   "weatherCodeTraditional": 2,
  -				"snowDepthInCentimeter": 25.2,
  -				"snowDepthInInch": 9.921
  +                "snowDepthInCentimeter": 25.2,
  +                "snowDepthInInch": 9.921
                 },
                 {
                   "meteoGroupStationId": "3007300",
  
positive.code:                 "windGustInMilesPerHour": 2.1864808,
                  "windGustInBeaufort": 1,
                  "windGustInKnots": 1.8999995,
                  "precipitationAmountInMillimeter": 0.5,
                  "precipitationAmountInInch": 0.02,
  				"freshSnowfallInCentimeter": 1,
  				"freshSnowfallInInch": 0.394,
  				"pressureTendencyDescription": "STEADY",
  				"pressureTendencyCode": 4
                },
                {
                  "locatedAt": [ -2.2323, 47.4593 ],
  
negative.code:                 "relativeHumidityInPercent": 98,
                  "effectiveCloudCoverInOcta": 5,
                  "totalCloudCoverInOcta": 6,
                  "visibilityInMeter": 2000,
                  "visibilityInKilometer": 2,
                  "visibilityInNauticalMile": 1.0799999,
                  "visibilityInStatuteMile": 1.2427424,
                  "weatherCode": "2",
                  "weatherCodeTraditional": 2,
                  "snowDepthInCentimeter": 5.4,
                  "snowDepthInInch": 2.126
                },
                {
                  "meteoGroupStationId": "3007237",
  