# WeatherData and TimeSeriesModelFit

with

city = CityData[{"Bremerhaven", "Bremen", "Germany"}];


and

BHVTemperatureData = WeatherData[city, "MeanTemperature", {{2000}, {2013}, "Month"}];


I get a TimeSeries object with 168 data points. These points are months and therefore these data should be uniformly spaced (12 per year). But

tsm = TimeSeriesModelFit[BHVTemperatureData];


gives the message "The data is not uniformly spaced ...".

Questions: a) Can this unexpected message be explained? b) Is there a way to retrieve a list of points in time/data from the TimeSeries object to exlain what is saved in this object type?

Best regards Volker

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DateDifference @@@ Partition[BHVTemperatureData[[All, 1]], 2, 1]

• @Volker Can't test it here,but perhaps something like DateDifference @@@ Partition[BHVTemperatureData["Times"], 2, 1] – Dr. belisarius Dec 5 '14 at 14:24