No data for ERA5 post-processed daily 2m temperature or total precipitation?

Hello!

I am trying to download [ERA5 post-processed daily statistics]
(ERA5 post-processed daily statistics on single levels from 1940 to present) for 2m temperature and total precipitation in the U.S. and Canada from 1950-2024. My plan is to do this for each variable separately, and to use an altered version of the API request code to loop through each year individually for organizational purposes.

However, when I try to run the code, I almost immediately get an error telling me that the job has failed due to “MarsNoDataError”. There’s also a huge output of the parameters I put in, letting me know that it’s cycled through some of the dates, but is inevitably failing in retrieving 1950 data.

I’ve used this method to retrieve ERA5 data before, so I don’t think the issue is with my request code, but I find it hard to believe that ERA5 does not have temperature or precipitation data at all for the years I’m requesting. Is there some other element I’m not considering, or something I need to change? Or is the data really just not available?

To anyone who responds, thank you for your time.