group by month and year

How can I group the following by month and day. I can make it work by months but this groups month in all the years in one record.

SELECT SWD_SCADA_Daily.[Well Name], Sum(SWD_SCADA_Daily.[Water Injection (bbl/day)]) AS CumInjection, Avg(SWD_SCADA_Daily.[Injection Pressure (Psi)]) AS AverageDischargePressure, Avg(SWD_SCADA_Daily.[WHP (Psi)]) AS AverageWHP, MONTH(SWD_SCADA_Daily.[Time/Date]) INTO SWD_SCADA_MONTHLY
FROM SWD_SCADA_Daily
GROUP BY SWD_SCADA_Daily.[Well Name], MONTH(SWD_SCADA_Daily.[Time/Date]);

Thank you.