diff --git a/apps/cb-metar/server/dataFunctions/sqlTemplates/tmpl_TimeSeries.sql b/apps/cb-metar/server/dataFunctions/sqlTemplates/tmpl_TimeSeries.sql
index b7aa72f565..299b0e648d 100644
--- a/apps/cb-metar/server/dataFunctions/sqlTemplates/tmpl_TimeSeries.sql
+++ b/apps/cb-metar/server/dataFunctions/sqlTemplates/tmpl_TimeSeries.sql
@@ -20,5 +20,5 @@ WHERE m0.type = 'DD'
     AND m0.fcstValidEpoch %(24 * 3600) / 3600 IN [{{vxVALID_TIMES}}]
     AND m0.fcstValidEpoch >= {{vxFROM_SECS}}
     AND m0.fcstValidEpoch <= {{vxTO_SECS}}
-GROUP BY m0.fcstValidEpoch
+GROUP BY {{vxAVERAGE}}
 ORDER BY avtime;