RF influenced rain indication

I use a LaCrosse 2380 and have my WD computer in my ham shack. Once in a great while when transmitting, RF apparently causes the “rain guage” display on WD jump up and show about .50" of rain fall when there has been none. It is possible to change the monthly data; but is there a way to correct the error that is being reported on the main daily page at that time? It makes a mess of my daily totals, and the report to NOAA.

Thanks, Mike