Apologies for the size of the attachment.

I'm looking for weather data for Beijing, and I see three weather files on the Energy plus site.

The first one is the CSWD (Chinese Standard Weather Data) source.
The second is the CTYW (Chinese Typical Year Weather) source
And the last is the SWERA (Solar & Wind Resource Assessment).

It seems like the first one has very strange solar radiation data - strange spikes that really look wrong. It also seems like the humidity numbers are too high - pretty much 100% most of the year.

The last two look more reasonable and are pretty similar (which would indicate that they are more reliable). However - they both show really low direct solar in the summer months (less than diffuse).

Has anyone had any experience with this? Which one should I use?

Vikram Sami, LEED AP