Looking like either a hack, or defective DB server being used by WxDisplayHistory.asp
Queries at different times ...
has returned 208, 206 and 207 lines (header + data), all queries made after 30Nov.
Compared two of those sets of results. A subset of diff of results of two of those queries:
20c18 [ actually two different data samples; diff goes by overall similarity]
< 2017-11-30 01:58:00,33.1,25.3,30.15,SW ...
---
> 2017-11-30 01:53:00,33.1,25.3,30.15,West ...
...
148d144
< 2017-11-30 17:09:00,37.4 ...
155a152
> 2017-11-30 18:04:00,36.1 ...
173a171
> 2017-11-30 20:09:00,36.5 ...
Looks like the queries are fetching a scatter of the DB data that actually matches the query.