Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
There's probably not any missing data. That warning happens because OpenStudio is trying to figure out if the EPW that has been provided is "actual" or "typical" data. The process to generate TMY (typical meteorological year) data stitches together data in month-long chunks from different years. An easy check is to look at each data point in the EPW and check if it has a full date that is consecutive with the data points around it, the EPW header tells us how many data points to expect. If everything is consecutive, then the EPW is most likely actual. Unfortunately, even that isn't foolproof. I've seen actual weather data from a leap year that leaves out the leap day. Oops.
If you open the EPW in a spreadsheet program I'll bet you find that it has 8760 hours of data (with some data in a header at the top). The EPW format is described in the Auxiliary Programs document.
