Meteobridge does not take daily data, it expects data with a timestamp like "2018-03-23 23:12:03"
Cumulus data is expected to look like this:
INSERT INTO `Monthly` (`LogDateTime`, `Temp`, `Humidity`, `Dewpoint`, `Windspeed`, `Windgust`, `Windbearing`, `RainRate`, `TodayRainSoFar`, `Pressure`, `Raincounter`, `InsideTemp`, `InsideHumidity`, `LatestWindGust`, `WindChill`, `HeatIndex`, `UVindex`, `SolarRad`, `Evapotrans`, `AnnualEvapTran`, `ApparentTemp`, `MaxSolarRad`, `HrsSunShine`, `CurrWindBearing`, `RG11rain`, `RainSinceMidnight`, `WindbearingSym`, `CurrWindBearingSym`) VALUES
('2018-11-30 22:45:00', '4.3', '86', '2.1', '4.0', '8.0', '223', '0.0', '1.2', '1001.66', '553.0', '21.2', '42', '2.0', '2.7', '4.3', '0.0', '0.0', '0.6', '560.4', '1.4', '0.0', '2.1', '213', '0.0', '1.2', 'SW', 'SSW'),
('2018-11-30 22:40:00', '4.3', '86', '2.1', '5.0', '12.0', '227', '0.0', '1.2', '1001.73', '553.0', '21.3', '42', '5.0', '2.3', '4.3', '0.0', '0.0', '0.6', '560.4', '1.1', '0.0', '2.1', '230', '0.0', '1.2', 'SW', 'SW'),
('2018-11-30 22:35:00', '4.3', '86', '2.1', '5.0', '12.0', '224', '0.0', '1.2', '1001.66', '553.0', '21.3', '42', '4.0', '2.3', '4.3', '0.0', '0.0', '0.6', '560.4', '1.1', '0.0', '2.1', '217', '0.0', '1.2', 'SW', 'SW'),
('2018-11-30 22:30:00', '4.3', '86', '2.1', '5.0', '12.0', '221', '0.0', '1.2', '1001.52', '553.0', '21.4', '42', '9.0', '2.3', '4.3', '0.0', '0.0', '0.6', '560.4', '1.1', '0.0', '2.1', '244', '0.0', '1.2', 'SW', 'WSW'),
('2018-11-30 22:25:00', '4.2', '86', '2.1', '5.0', '12.0', '218', '0.0', '1.2', '1001.56', '553.0', '21.5', '42', '3.0', '2.2', '4.2', '0.0', '0.0', '0.6', '560.4', '1.0', '0.0', '2.1', '250', '0.0', '1.2', 'SW', 'WSW'),
('2018-11-30 22:20:00', '4.1', '87', '2.1', '5.0', '12.0', '213', '0.0', '1.2', '1001.59', '553.0', '21.6', '42', '6.0', '2.1', '4.1', '0.0', '0.0', '0.6', '560.4', '0.9', '0.0', '2.1', '168', '0.0', '1.2', 'SSW', 'SSE'),
('2018-11-30 22:15:00', '4.1', '87', '2.1', '5.0', '12.0', '217', '0.0', '1.2', '1001.49', '553.0', '21.7', '41', '6.0', '2.1', '4.1', '0.0', '0.0', '0.6', '560.4', '0.9', '0.0', '2.1', '179', '0.0', '1.2', 'SW', 'S'),
('2018-11-30 22:10:00', '4.1', '86', '2.0', '4.0', '12.0', '218', '0.0', '1.2', '1001.52', '553.0', '21.7', '41', '2.0', '2.6', '4.1', '0.0', '0.0', '0.6', '560.4', '1.2', '0.0', '2.1', '248', '0.0', '1.2', 'SW', 'WSW'),
or this
"2016-04-20 23:15:00","6.6","89","4.9","0.0","1.0","254","0.0","0.0","1027.40","397.4","25.2","41","1.0","6.6","6.6","0.0","0.0","0.0","0.0","5.5","0.0","0.0","257","0.0","0.0","WSW","WSW"
"2016-04-20 23:20:00","6.4","89","4.8","0.0","1.0","256","0.0","0.0","1027.43","397.4","25.2","41","1.0","6.4","6.4","0.0","0.0","0.0","0.0","5.3","0.0","0.0","255","0.0","0.0","WSW","WSW"
"2016-04-20 23:25:00","6.3","89","4.7","0.0","1.0","256","0.0","0.0","1027.53","397.4","25.2","41","0.0","6.3","6.3","0.0","0.0","0.0","0.0","5.1","0.0","0.0","256","0.0","0.0","WSW","WSW"
"2016-04-20 23:30:00","6.3","89","4.6","0.0","2.0","259","0.0","0.0","1027.53","397.4","25.2","41","0.0","6.3","6.3","0.0","0.0","0.0","0.0","5.1","0.0","0.0","264","0.0","0.0","W","W"
"2016-04-20 23:35:00","6.2","89","4.5","1.0","2.0","264","0.0","0.0","1027.70","397.4","25.2","41","0.0","6.2","6.2","0.0","0.0","0.0","0.0","4.7","0.0","0.0","273","0.0","0.0","W","W"
"2016-04-20 23:40:00","6.2","89","4.5","1.0","2.0","263","0.0","0.0","1027.74","397.4","25.2","41","2.0","6.2","6.2","0.0","0.0","0.0","0.0","4.6","0.0","0.0","270","0.0","0.0","W","W"
"2016-04-20 23:45:00","6.2","89","4.5","0.0","2.0","260","0.0","0.0","1027.70","397.4","25.2","41","0.0","6.2","6.2","0.0","0.0","0.0","0.0","4.9","0.0","0.0","270","0.0","0.0","W","W"
"2016-04-20 23:50:00","6.2","89","4.5","0.0","2.0","270","0.0","0.0","1027.63","397.4","25.1","41","0.0","6.2","6.2","0.0","0.0","0.0","0.0","4.9","0.0","0.0","270","0.0","0.0","W","W"
"2016-04-20 23:55:00","6.1","89","4.4","0.0","1.0","270","0.0","0.0","1027.67","397.4","25.2","41","0.0","6.1","6.1","0.0","0.0","0.0","0.0","4.9","0.0","0.0","270","0.0","0.0","W","W"
"2016-04-21 00:00:00","6.1","89","4.4","0.0","1.0","270","0.0","0.0","1027.74","397.4","25.1","41","0.0","6.1","6.1","0.0","0.0","0.0","0.0","4.9","0.0","0.0","270","0.0","0.0","W","W"
"2016-04-21 00:05:00","6.1","89","4.4","0.0","1.0","270","0.0","0.0","1027.84","397.4","25.1","40","0.0","6.1","6.1","0.0","0.0","0.0","0.0","4.8","0.0","0.0","270","0.0","0.0","W","W"
"2016-04-21 00:10:00","6.1","89","4.4","0.0","1.0","270","0.0","0.0","1027.87","397.4","25.1","40","0.0","6.1","6.1","0.0","0.0","0.0","0.0","4.8","0.0","0.0","270","0.0","0.0","W","W"
"2016-04-21 00:15:00","5.9","88","4.1","0.0","1.0","270","0.0","0.0","1027.87","397.4","25.1","40","0.0","5.9","5.9","0.0","0.0","0.0","0.0","4.6","0.0","0.0","269","0.0","0.0","W","W"
"2016-04-21 00:20:00","5.8","88","4.0","0.0","0.0","0","0.0","0.0","1027.87","397.4","25.0","40","0.0","5.8","5.8","0.0","0.0","0.0","0.0","4.5","0.0","0.0","270","0.0","0.0","N","W"