rainin- real number [in]; rain inches over the past hour
Do you mean the accumulated rain in inches over the past hour?
I have the Sainlogic WS3500 (same as Froggit WH3000 and Fine Offset WH2900) which delivers (in WUnderground API mode) all the same values with the same parameter names except
rainin is defined as rain RATE per hour in inches.
Because of the measuring ever 16seconds and delivering the data every minute to my own service, the value must be recalculated anyway to be send every 5 minutes to your service. The only question is, whats the correct calculation. rain rate or accumulated rain within the last hour..