# Seasonal mean failure

**URL:** <https://cms-helpdesk.ncas.ac.uk/t/seasonal-mean-failure/1141>\
**Category:** Uncategorized\
**Created:** [25 September 2023 14:48 UTC](https://cms-helpdesk.ncas.ac.uk/t/seasonal-mean-failure/1141 "2023-09-25T14:48:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![James\_Weber](https://avatars.discourse-cdn.com/v4/letter/j/e495f1/32.png) [@James\_Weber](https://cms-helpdesk.ncas.ac.uk/u/James_Weber)\
**Post date:** [25 September 2023 14:48 UTC](https://cms-helpdesk.ncas.ac.uk/t/seasonal-mean-failure/1141/1 "2023-09-25T14:48:34Z")

</div>

Hi,

I’m trying to run a nudged UM13.3 suite, u-cz968, but keep getting postproc errors kicking in after the 5th month (when running 1 month resubmissions) or the 6 months (when running 3 months resubmissions).

The error seems to relate to the seasonal mean. Changing between 1month and 3 month resubmissions makes no differences.

[ERROR] Seasonal mean for Spring 2011 not possible as only got 2 file(s):  
/home/d04/jamwe/cylc-run/u-cz968/share/data/History\_Data/cz968a.pm2011apr, /home/d04/jamwe/cylc-run/u-cz968/share/data/History\_Data/cz968a.pm2011may

I looked at similar errors raised previously on here but couldn’t understand how to implement the solutions.

Could you take a look at the suite and see if there is something I need to change in the setup?

Thanks for your help,

James