Cumulus Support

We have more or less continual rain yesterday, and I noticed I'd lost sensor contact for about 3 hours prior to starting the PC in the morning. Replaced batteries all round and rebooted the console to establish contact, and all seemed normal (less some lost rainfall) for the rest of the day. However on starting up this morning, yesterday's rainfall shows as 0.2mm, instead of 26.7mm. I've edited dayfile.txt with the correct value and restarted Cumulus but the error remains. The graphs and Mar11log.txt are showing true data. I guess all will be well tomorrow

The rainfall counter in the transmitter would have been reset, which is why you lost rainfall. Yesterday's figure is taken from the 'yesterday=' value in the today.ini file; as you say, you can either wait until tomorrow, or stop Cumulus and edit today.ini with the correct amount.