Marks (Kwikbreaks) php scraper suggests the following:

2/ date / timestamp (ISO format)

7/ outdoor humidity
8/ outdoor temp. (is this always C or user set ?)

12/ baro - relative (is this always hPa or user set ?)

13/ windspeed - appears to be metres per sec

15/ windspeed GUST - appears to be metres per sec

17/ wind direction - 16 options in your line 8 = S(outh)

22/ hourly rain - appears to be mm
22/ daily rain (? or 24 hr) - appears to be mm

Looking at the line I would expect:

2/ date / time stamp previous record
3/ interval as you suggest

9/ Dew Point (always C ?)
10/ Windchill OR Heat Index OR combination (feels like)

13 & 14/ rate of baro change ? - seen any minus numbers ?

Can't tell from record #1, but some of the others maybe Min. Max or running totals.

...... keep the info coming guys

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