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→Where does Cumulus get its this month and this year rainfall totals from?: Clarify that correction by cumulus is for 'this month' and 'this year' not past months or past years
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For stations which supply a rain rate, Cumulus uses that. For stations which don't supply a rain rate (e.g. Fine Offset and La Crosse), Cumulus simply takes the rain total from the last five minutes and calculates a rate based on that; e.g. a single tip of 0.3mm in 5 minutes is a rate of 3.6mm/hr. When data from the station's logger is used, a similar calculation is performed, but the interval used is the logger interval rather than five minutes.
== Where does Cumulus get its
It adds up the corresponding daily totals in dayfile.txt, and then adds today's total so far to it
If your this month and/or this year totals are incorrect, then you can use the built-in dayfile.txt editor to amend the daily totals; you will then need to restart Cumulus to get the monthly and annual totals recalculated.
If your all-time (or month by month from version 1.9.3) high monthly rainfall record has been affected, once you have corrected the figures in dayfile.txt and your monthly total is correct, you can then use the built-in all-time (or monthly records) editor(s) in Cumulus to regenerate the extreme records from dayfile.txt.
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