Hadir A. Moneim

You could try building a relational database.

Have just your stations as individual locations, then have the rest of your data as a table. You can perform a relate using the shapes and table.

Might want to consider building a relationship class for this.

http://resources.arcgis.com/en/help/main/10.1/index.html#//004t00000007000000

I hope this helps!

If you have daily data the "reddPrec" package in R is quite suitable for your task

Article An R package for daily precipitation climate series reconstruction

https://cran.r-project.org/web/packages/reddPrec/reddPrec.pdf

This methodology needs at least 10 observations per day to build a proper reconstructed series. This means that you need many stations.

Well,

You can use ARCGIS to interpolate different stations with technique of kriging or spline or IDW method

Regards,