Below 0F temperatures cause wfrog to assume 99.9C

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What steps will reproduce the problem?
1. Setup wfrog (latest release or svn) with a Davis VantagePro2 station
2. Wait for temperature to fall below 0F (-17.77C)
3. Watch as wfrog reports 99.9C (or just a hair below 212F)  (it actually shows 
something like ~5300C in the current conditions part, but only logs 99.9C to 
the database)

What is the expected output? What do you see instead?
Temperatures below -17.77C/0F logged/reported.   99.9C/211.82F logged/reported. 

What version of the product are you using? On what operating system?
Currently 0.8.2-svn.  Problem is reproducible on all recent versions of wfrog 
however.  Debian Squeeze, Python 2.6.

Please provide any additional information below.
Screenshot: http://i.imgur.com/D4iHrAy.png  (also attached)

Original issue reported on code.google.com by jimneum...@gmail.com on 1 Feb 2013 at 7:25

Attachments:

• [wfrog 99.9c.png](https://storage.googleapis.com/google-code-attachments/wfrog/issue-127/comment-0/wfrog 99.9c.png)

[GoogleCodeExporter]

Hi,

It looks like there is some error in the driver for Davis. Please, can you post 
the CSV (or database records) corresponding to the period in the image? If you 
happen to have a copy of the current conditions file it would be great.

Jordi.

Original comment by jordi.pu...@gmail.com on 3 Feb 2013 at 7:37

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Original comment by jordi.pu...@gmail.com on 3 Feb 2013 at 7:38

• Changed state: Accepted
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Original comment by jordi.pu...@gmail.com on 3 Feb 2013 at 9:36

• Changed state: Waiting

[GoogleCodeExporter]

Database table dump attached with a couple weeks of output.  I have already 
manually corrected a night's worth of messed up output a little over a week 
ago, you might see that as the same temperature (~-6F) for several hours 
straight, but the most recent flawed data is still there from two different 
nights more recently.

Original comment by jimneum...@gmail.com on 4 Feb 2013 at 2:42

Attachments:

• METEO.sql.gz