Using parameter file param1:

wmonr
FF
NN

and filter file filter1 (to exclude observations not containing all of the parameters above):

wmonr
FF
NN

produced this output when executing bufrdump.pl on a BUFR SYNOP file with options --param param1 --csv --filter1

wmonr,FF,NN
01278,0.0,7
94120,7.2,1
94132,0.0,1
94150,5.7,5
94238,3.1,7
94326,5.7,8
94327,4.6,8
94462,8.2,1
95322,5.7,8
...

The units for wind speed FF is m/s, for cloud cover NN the code figures in WMO code table 2700 is used (roughly corresponding to counting octas).