Allow one missing value for daily aggregations

cron/export/bulk/stations/daily.sql

@@ -87,17 +87,17 @@ UNION all (SELECT `date`,
            FROM   `daily_ghcn`
            WHERE  `station` = :station)
 UNION all (SELECT date(`time`) as `date`,
-                  if(count(`temp`) < 24, null, round(avg(`temp`), 1)) as `tavg`,
-                  if(count(`temp`) < 24, null, min(`temp`)) as `tmin`,
-                  if(count(`temp`) < 24, null, max(`temp`)) as `tmax`,
-                  if(count(`prcp`) < 24, null, round(sum(`prcp`), 1)) as `prcp`,
-                  if(count(`snow`) < 24, null, max(`snow`)) as `snow`,
-                  if(count(`wdir`) < 24,
+                  if(count(`temp`) < 23, null, round(avg(`temp`), 1)) as `tavg`,
+                  if(count(`temp`) < 23, null, min(`temp`)) as `tmin`,
+                  if(count(`temp`) < 23, null, max(`temp`)) as `tmax`,
+                  if(count(`prcp`) < 23, null, round(sum(`prcp`), 1)) as `prcp`,
+                  if(count(`snow`) < 23, null, max(`snow`)) as `snow`,
+                  if(count(`wdir`) < 23,
                      null,
                      round(degavg(sum(sin(radians(`wdir`))), sum(cos(radians(`wdir`)))), 1)) as `wdir`,
-                  if(count(`wspd`) < 24, null, round(avg(`wspd`), 1)) as `wspd`,
-                  if(count(`wpgt`) < 24, null, max(`wpgt`)) as `wpgt`,
-                  if(count(`pres`) < 24, null, round(avg(`pres`), 1)) as `pres`,
+                  if(count(`wspd`) < 23, null, round(avg(`wspd`), 1)) as `wspd`,
+                  if(count(`wpgt`) < 23, null, max(`wpgt`)) as `wpgt`,
+                  if(count(`pres`) < 23, null, round(avg(`pres`), 1)) as `pres`,
                   null as `tsun`,
                   group_concat(distinct `temp_flag` separator '') as `tavg_flag`,
                   group_concat(distinct `temp_flag` separator '') as `tmin_flag`,