anchor.diff:  			"validPeriod" : "PT0S"
   		}, {
   			"relativeGlobalRadiationInPercent" : 82,
  +			"precipitationProbabilityInPercent" : 5,
   			"locatedAt" : [-16.78, 32.69],
   			"validUntil" : "2016-12-13T11:00:00Z",
   			"validFrom" : "2016-12-13T10:00:00Z",
  
positive.code: 			"validPeriod" : "PT0S"
  		}, {
  			"relativeGlobalRadiationInPercent" : 77,
  			"locatedAt" : [-16.78, 32.69],
  			"validUntil" : "2016-12-13T12:00:00Z",
  			"validFrom" : "2016-12-13T11:00:00Z",
  			"validPeriod" : "PT1H"
  		}, {
  			"maxAirTemperatureInFahrenheit" : 66.380005,
  			"weatherCode" : 4,
  			"locatedAt" : [-16.78, 32.69],
  			"validUntil" : "2016-12-13T12:00:00Z",
  			"validFrom" : "2016-12-13T09:00:00Z",
  			"validPeriod" : "PT3H"
  		}, {
  			"maxAirTemperatureInFahrenheit" : 66.380005,
  			"weatherCode" : 3,
  			"locatedAt" : [-16.78, 32.69],
  			"validUntil" : "2016-12-13T12:00:00Z",
  
negative.code:                 maxAirTemperatureInKelvin,mostLikelyLowAirTemperatureInCelsius,mostLikelyLowAirTemperatureInFahrenheit,mostLikelyLowAirTemperatureInKelvin,
                  mostLikelyHighAirTemperatureInCelsius,mostLikelyHighAirTemperatureInFahrenheit,mostLikelyHighAirTemperatureInKelvin,weatherCode,weatherCodeTraditional,
                  averageRelativeHumidityInPercent,averageWindSpeedInMeterPerSecond,averageWindSpeedInKnots,averageWindSpeedInMilesPerHour,averageWindSpeedInBeaufort,
                  averageWindSpeedInKilometerPerHour,precipitationProbabilityInPercent
  - **PT6H** -    maxWindSpeedInMeterPerSecond,maxWindSpeedInKnots,maxWindSpeedInMilesPerHour,maxWindGustInMeterPerSecond,maxWindGustInKnots,maxWindGustInMilesPerHour
                  minAirTemperatureInCelsius,minAirTemperatureInFahrenheit,minAirTemperatureInKelvin,maxAirTemperatureInCelsius,maxAirTemperatureInFahrenheit,
                  maxAirTemperatureInKelvin,mostLikelyLowAirTemperatureInCelsius,mostLikelyLowAirTemperatureInFahrenheit,mostLikelyLowAirTemperatureInKelvin,
                  mostLikelyHighAirTemperatureInCelsius,mostLikelyHighAirTemperatureInFahrenheit,mostLikelyHighAirTemperatureInKelvin,weatherCode,weatherCodeTraditional,
                  maxPrecipitationAmountInMillimeter,minPrecipitationAmountInMillimeter,precipitationProbabilityMoreOrEqualThan0_1MillimeterInPercent,
                  precipitationProbabilityMoreThan0_2MillimeterInPercent,precipitationProbabilityMoreThan4_4MillimeterInPercent,precipitationProbabilityInPercent,
                  precipitationDurationInMinutes,freshSnowfallInCentimeter,maxFreshSnowfallInCentimeter,effectiveCloudCoverInOcta,averageRelativeHumidityInPercent,
                  averageWindSpeedInMeterPerSecond,averageWindSpeedInKnots,averageWindSpeedInMilesPerHour,averageWindSpeedInBeaufort,averageWindSpeedInKilometerPerHour
  - **PT12H** -   maxWindSpeedInMeterPerSecond,maxWindSpeedInKnots,maxWindSpeedInMilesPerHour,maxWindGustInMeterPerSecond,maxWindGustInKnots,maxWindGustInMilesPerHour,
                  minAirTemperatureInCelsius,minAirTemperatureInFahrenheit,minAirTemperatureInKelvin,maxAirTemperatureInCelsius,maxAirTemperatureInFahrenheit,
                  maxAirTemperatureInKelvin,mostLikelyLowAirTemperatureInCelsius,mostLikelyLowAirTemperatureInFahrenheit,mostLikelyLowAirTemperatureInKelvin,
                  mostLikelyHighAirTemperatureInCelsius,mostLikelyHighAirTemperatureInFahrenheit,mostLikelyHighAirTemperatureInKelvin,weatherCode,weatherCodeTraditional,
                  convectivePrecipitationProbabilityInPercent,maxPrecipitationAmountInMillimeter,minPrecipitationAmountInMillimeter,precipitationProbabilityMoreOrEqualThan0_1MillimeterInPercent,
                  precipitationProbabilityMoreThan0_2MillimeterInPercent,precipitationProbabilityMoreThan1_4MillimeterInPercent,precipitationProbabilityMoreThan4_4MillimeterInPercent,
                  precipitationProbabilityMoreThan20MillimeterInPercent,precipitationProbabilityInPercent,thunderstormProbabilityInPercent,mostSignificantWeatherCode,
                  mostSignificantWeatherCodeTraditional,effectiveCloudCoverInOcta,freezingRainProbabilityInPercent,groundFrostProbabilityInPercent,hailProbabilityInPercent,
                  snowFallProbabilityInPercent,minAirTemperatureNearGroundInCelsius,averageRelativeHumidityInPercent,averageWindSpeedInMeterPerSecond,averageWindSpeedInKnots,
                  averageWindSpeedInMilesPerHour,averageWindSpeedInBeaufort,averageWindSpeedInKilometerPerHour
  - **PT24H** -   maxWindSpeedInMeterPerSecond,maxWindSpeedInKnots,maxWindSpeedInMilesPerHour,maxWindGustInMeterPerSecond,maxWindGustInKnots,maxWindGustInMilesPerHour,
                  minAirTemperatureInCelsius,minAirTemperatureInFahrenheit,minAirTemperatureInKelvin,maxAirTemperatureInCelsius,maxAirTemperatureInFahrenheit,
                  maxAirTemperatureInKelvin,mostLikelyLowAirTemperatureInCelsius,mostLikelyLowAirTemperatureInFahrenheit,mostLikelyLowAirTemperatureInKelvin,
                  mostLikelyHighAirTemperatureInCelsius,mostLikelyHighAirTemperatureInFahrenheit,mostLikelyHighAirTemperatureInKelvin,maxPrecipitationAmountInMillimeter,
                  minPrecipitationAmountInMillimeter,precipitationProbabilityMoreOrEqualThan0_1MillimeterInPercent,precipitationProbabilityMoreThan0_2MillimeterInPercent,
                  precipitationProbabilityMoreThan4_4MillimeterInPercent,precipitationProbabilityInPercent,mostSignificantWeatherCode,mostSignificantWeatherCodeTraditional,
                  evaporationMakkinkInMillimeter,evaporationPenmanInMillimeter,mostSignificantPrecipitationType,saturationDeficitInHectoPascal,sunshineDurationInMinutes,
                  relativeSunshineDurationInPercent,globalRadiationInJoulePerSquareCentimeter,averageRelativeHumidityInPercent,averageWindSpeedInMeterPerSecond,
                  averageWindSpeedInKnots,averageWindSpeedInMilesPerHour,averageWindSpeedInBeaufort,averageWindSpeedInKilometerPerHour
  
  The "weatherCode" parameter refers to the WMO code table "0 20 003 - Present weather".
  The mostLikelyHighAirTemperature equals maxAirTemperature plus airTemperatureError.
  