# Downloading the daily mean of ERA5

**URL:** <https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903>\
**Category:** C3S - Access and Login\
**Tags:** access, c3s, era5\
**Created:** [30 January 2020 18:33 UTC](https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903 "2020-01-30T18:33:41Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Tim\_suny](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/t/49beb7/32.png) [@Tim\_suny](https://forum.ecmwf.int/u/Tim_suny)\
**Post date:** [30 January 2020 18:33 UTC](https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903/1 "2020-01-30T18:33:41Z")

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Hello,&nbsp;

I am interested in downloading the ERA-5 daily-mean data. I am downloading the hourly data first using the following script  
 , then I calculate the daily means. I am wondering if there is a way to download the daily means directly.  
 Thanks

| 

parm\_name='uwind'

year=2010

month=01

c = cdsapi.Client()  
 c.retrieve('reanalysis-era5-pressure-levels',

{ 'product\_type':'reanalysis',

'variable':parm\_name,

'year':year,

'month':month,

'pressure\_level':['1000', '975', '950', '925', '900', '875', '850', '825', '800', '775', '750', '700', '650', '600', '550', '500', '450', '400', '350', '300', '250', '225', '200', '175', '150', '125', '100', '70', '50', '30', '20' , '10' , '7' , '5' , '3', '2' , '1'],

'day':['01','02','03','04','05', '06','07','08','09','10', '11','12','13','14','15', '16','17','18','19','20', '21','22','23','24','25', '26','27','28','29','30','31'],

'time':['00:00','01:00','02:00', '03:00','04:00','05:00', '06:00','07:00','08:00', '09:00','10:00','11:00', '12:00','13:00','14:00', '15:00','16:00','17:00', '18:00','19:00','20:00', '21:00','22:00','23:00'],

'format':'netcdf', 'grid': [1,1], # latitude and longitude grid: east-west and north-south.

'area': [50,-180,-50,180] # north, west, south, and east }

,diri\_input+"%s\_%s\_%[s.nc](http://s.nc)"%(parm\_name,year,month))

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**Author:** ![Irene\_Farah](https://forum.ecmwf.int/user_avatar/forum.ecmwf.int/irene_farah/32/66_2.png) [@Irene\_Farah](https://forum.ecmwf.int/u/Irene_Farah)\
**Post date:** [2 March 2020 23:02 UTC](https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903/2 "2020-03-02T23:02:40Z")

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Did anyone get back to you on this?&nbsp;[ahmed suny](https://confluence.ecmwf.int/display/~alasheen@albany.edu)

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**Author:** ![Tim\_suny](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/t/49beb7/32.png) [@Tim\_suny](https://forum.ecmwf.int/u/Tim_suny)\
**Post date:** [2 March 2020 23:57 UTC](https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903/3 "2020-03-02T23:57:50Z")

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Yes, I have been told that they do not store the daily means.&nbsp;

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**Author:** ![Irene\_Farah](https://forum.ecmwf.int/user_avatar/forum.ecmwf.int/irene_farah/32/66_2.png) [@Irene\_Farah](https://forum.ecmwf.int/u/Irene_Farah)\
**Post date:** [3 March 2020 00:39 UTC](https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903/4 "2020-03-03T00:39:45Z")

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Thank you for your quick response! I'll do it manually then (:

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**Author:** ![Kevin\_Marsh](https://forum.ecmwf.int/user_avatar/forum.ecmwf.int/kevin_marsh/32/368_2.png) [@Kevin\_Marsh](https://forum.ecmwf.int/u/Kevin_Marsh)\
**Post date:** [24 March 2021 13:06 UTC](https://forum.ecmwf.int/t/downloading-the-daily-mean-of-era5/903/5 "2021-03-24T13:06:28Z")

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Hi all

FYI There is an application on the CDS to calculate ERA5 daily mean data (only for single level data currently)

[https://cds.climate.copernicus.eu/cdsapp#!/software/app-c3s-daily-era5-statistics](https://cds.climate.copernicus.eu/cdsapp#!/software/app-c3s-daily-era5-statistics)

Thanks,

Kevin