anchor.diff:      + The min/maxAirTemperature parameter for the PT24H is calculated as min/max value of two previous PT12H min/maxAirTemperature values respectively.
   + The maxUVIndexWithClouds parameter is calculated as a maximum of hourly values
       UVIndexWithClouds = clearSkyUVIndex * (1.0 - 0.9 * (effectiveCloudCoverInOcta / 8)^2) + 0.4
  ++ The minVisibilityInMeter parameters for PT3H, PT6H, PT12H and PT24H are calculated as a min value of the visibilityInMeter parameter from PT0S for the last 3, 6, 12 and 24 hours respectively,
  +    including marginal values. E.g for PT3H period 4 PT0S values are used to cover the full three hours (validUntil-3h,validUntil-2h,validUntil-1h and validUntil).
  +    
   
   ### Forecasted weather for a given *latitude* and *longitude* [GET]
   
  
positive.code:                 mostSignificantWeatherCodeTraditional,effectiveCloudCoverInOcta,freezingRainProbabilityInPercent,groundFrostProbabilityInPercent,hailProbabilityInPercent,
                  snowFallProbabilityInPercent,minAirTemperatureNearGroundInCelsius,averageRelativeHumidityInPercent,averageWindSpeedInMeterPerSecond,averageWindSpeedInKnots,
                  averageWindSpeedInMilesPerHour,averageWindSpeedInBeaufort,averageWindSpeedInKilometerPerHour,averageAirPressureAtSeaLevelInHectoPascal,
                  maxUVIndexWithClouds
  - **PT24H** -   maxWindSpeedInMeterPerSecond,maxWindSpeedInKnots,maxWindSpeedInMilesPerHour,maxWindGustInMeterPerSecond,maxWindGustInKnots,maxWindGustInMilesPerHour,
                  minAirTemperatureInCelsius,minAirTemperatureInFahrenheit,minAirTemperatureInKelvin,maxAirTemperatureInCelsius,maxAirTemperatureInFahrenheit,
                  maxAirTemperatureInKelvin,mostLikelyLowAirTemperatureInCelsius,mostLikelyLowAirTemperatureInFahrenheit,mostLikelyLowAirTemperatureInKelvin,
  
negative.code:                 maxAirTemperatureInKelvin,mostLikelyLowAirTemperatureInCelsius,mostLikelyLowAirTemperatureInFahrenheit,mostLikelyLowAirTemperatureInKelvin,
                  mostLikelyHighAirTemperatureInCelsius,mostLikelyHighAirTemperatureInFahrenheit,mostLikelyHighAirTemperatureInKelvin,weatherCode,weatherCodeTraditional,
                  averageRelativeHumidityInPercent,averageWindSpeedInMeterPerSecond,averageWindSpeedInKnots,averageWindSpeedInMilesPerHour,averageWindSpeedInBeaufort,
                  averageWindSpeedInKilometerPerHour,averageAirPressureAtSeaLevelInHectoPascal,precipitationProbabilityInPercent,maxUVIndexWithClouds,minVisibilityInMeter
  - **PT6H** -    maxWindSpeedInMeterPerSecond,maxWindSpeedInKnots,maxWindSpeedInMilesPerHour,maxWindGustInMeterPerSecond,maxWindGustInKnots,maxWindGustInMilesPerHour
                  minAirTemperatureInCelsius,minAirTemperatureInFahrenheit,minAirTemperatureInKelvin,maxAirTemperatureInCelsius,maxAirTemperatureInFahrenheit,
                  maxAirTemperatureInKelvin,mostLikelyLowAirTemperatureInCelsius,mostLikelyLowAirTemperatureInFahrenheit,mostLikelyLowAirTemperatureInKelvin,
  