SELECT Table1.Time, Table1.Temp, Table1.Humid
FROM Table1
WHERE (((Table1.Time)<>0) AND (([Table1]![Time] Mod 60)=0));
if you wish to get the average only of the above query:
SELECT Avg([mod].Temp) AS AvgOfTemp, Avg([mod].Humid) AS AvgOfHumid
FROM [SELECT Table1.Time, Table1.Temp...