Sorry but as my English is very bad I go through Google translation.
I wonder if Cumulus can create a daily file named "yyyymmdd.txt" => "20140430.txt"
With recording every minute increments, which would contain
hh:mm;<#RCtem>;<#RCpress>;<#RCwspeed>;<#rmonth>;<#RCintemp>;<#currentwdir>;
ex:
10:01;10.1;1010.2;9.2;0.0;19.1;WNW;
10:02;10.2;1010.3;2.0;0.0;19.0;NW;
10:03;..............................
Well, thank you for your help and good day