Sum Daily Data in Year Buckets

Hi,

I'm currently working with a netCDF file and wish to evaluate its temperature (lon,lat,time) variable. I would like to sum the daily temperature data to get an annual sum for each of the 20 years worth of data. Any help would be much appreciated.

Thanks

[Akira Agata]

If you can store your data as a timetable, you can easily calculate an annual sum by using retime function.

If possible, could you upload an example of your data to allow people here (including me !) to try their possible solution?