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If heat index or wind chill is not applicable, Cumulus will set them the same as the ambient temperature.
== My station invented some rain that didn't really occur, and I want to set it to zero (or some other figure) ==
You can correct today's total using the 'today's rain' editor on the edit menu. You may choose to also stop Cumulus and edit [[today.ini]] to change the ''LastTip=''(look up previous value in a recently backed up today.ini) parameter. Remember that 'ConsecutiveDryDays' does not include today.
If the erroneous rainfall didn't occur today, you just need to edit the total for the relevant day in dayfile.txt, using the dayfile.txt editor on the edit menu. You may then need to restart Cumulus to get the correct monthly and annual totals.
If your all-time records, or month-by-month all-time records have been affected, you can use the built-in editors to fetch the correct values once you have corrected dayfile.txt.
If the erroneous rain occurred yesterday, you can also optionally edit yesterday's total (which is only held temporarily for display purposes) in [[today.ini]], while Cumulus is stopped.
Note that other rain figures, such as 'rain last hour' and 'rain last 24 hours' depend on a sensible progression of the rain counter, so it's not easy to correct this; it's easier to wait until the erroneous figure is far enough in the past so as not to affect the calculation. If you really do want to try to correct it, you would need to stop Cumulus and edit the 'total rain counter' values in the log file so they are correct relative to the current value of the rain counter (i.e. the latest one logged).
It is better to try to avoid spurious rain being recorded in the first place. Cumulus attempts to ignore large increases in the rain total automatically, and is quite often successful. For 'hourly rain' and 'rain rate', you can set 'spike removal' settings on the calibration settings screen. These apply only to Fine Offset and La Crosse stations (which are known to occasionally produce faulty rain readings).
There is more information about correcting data in the wiki, in the pages about the [[:Category:Log_Files|log files]].
== Cumulus is showing a different wind speed compared to my console ==
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