Every 5 minutes, WX Logger saves all of the current weather data to text file called "WX Data Log". This file is located in the same directory as the WX Logger application.

Every day at Midnight, WX Data Log is renamed with the date and a new data log is created. For example, at 12:01AM on July 26, 2000, the existing file is renamed to "07/25/00 WX Log" and a new WX Data Log is created.

Note that this only happens at Midnight. If WX Logger is not running, the renaming and new log file creation will not occur.

Values are in metric or imperial measurements, depending on the setting you've made in WX Logger Preferences.

Each log file can be as large as 50-60K in length. Make sure you have enough hard disk space available for the logs.

The rainfall totals and rates are calculated by the base station, not WX Logger. Be sure the date and time on your base station is set correctly. Note that total rainfall must be manually reset on the base station, otherwise it just keeps accumulating.

Log file format

Each value is separated with a comma. The last value on each line is followed by a linefeed:

•	Month of this log entry (1-12)
•	Day of this log entry
•	Year
•	Hour
•	Minute
•	Inside Temperature
•	Maximum Inside Temperature
•	Time of Max Inside Temperature (OO:00 AM)
•	Minimum Inside Temperature
•	Time of Min Inside Temperature (00:00 AM)
•	Inside Humidity
•	Maximum Inside Humidity
•	Time of Max Inside Humidity (00:00 AM)
•	Minimum Inside Humidity
•	Time of Minimum Inside Humidity (00:00 AM)
•	Inside Dew Point
•	Inside Barometric Pressure (mb)
•	Outside Temperature
•	Maximum Outside Temperature
•	Time of Max Outside Temperature (OO:00 AM)
•	Minimum Outside Temperature
•	Time of Min Outside Temperature (00:00 AM)
•	Outside Humidity
•	Maximum Outside Humidity
•	Time of Max Outside Humidity (00:00 AM)
•	Minimum Outside Humidity
•	Time of Minimum Outside Humidity (00:00 AM)
•	Outside Dew Point
•	Current gust speed
•	Current gust bearing (in compass degrees)
•	Current gust direction (N,NW,S,E,etc)
•	Average speed of recent gusts (as reported by station)
•	Maximum gust speed
•	Time of Max Gust (00:00 AM)
•	Wind Chill Temperature
•	Current rainfall rate
•	Number of times rain sensor has emptied itself
•	Maximum rainfall rate
•	Time of Minimum Rainfall Rate (00:00 AM)
•	Total Rain Today (as reported by station)
•	Total Rain Yesterday (as reported by station)