From late 2001 to the fall of 2007, there was a small weather station running in our backyard. Partly through neglect and partly due to the ravishes of the elements, the monitors started to fail. I eventually took the system off-line.
For my birthday, Sharon gave me a replacement system. I got everything back and up and running the following weekend.
The system posts data to the internet in two places. A summary page showing graphs for the last 24 hours is available here; it is updated every 30 minutes. Data from the weather station is also posted on a Weather Underground site here.