I think it′s really odd that you can hear crickets in the cold northern mountains and I′d like to shut them up
A quick Nexus search gave me nothing, does anyone here have a mod like that or is someone willing to create that mod for me? Not a modder myself, you see

Are there even crickets in the game to remove?

I think this is one of the ambient sounds, and if so, that is what you have to mod or have modded. Look into any of the mods that change the background sounds for a fix.

No there aren′t any real crickets, just the sound of them as you suggested.

I suspect it′s an easy one to make so I figured I′d ask here

It might be overkill for a single issue like this, but you could start with Sounds of Cyrodiil:

http://oblivion.nexusmods.com/mods/39804

This page also has a handy list of other ambient sound mods, many of which I can recommend. (I can't say which one has killed off the crickets in the Jeralls in my game, or maybe it's just that you can't hear them over the wind and the wolves howling...)

Wow, that′s pretty extensive. All I wanted was the crickets to shut their legs Amazing what people come up with