SELECT zip_code  ,  avg(mean_temperature_f) FROM weather WHERE date LIKE "8/%" GROUP BY zip_code
For each zip code, return the average mean temperature of August there.
SELECT zip_code , avg ( mean_temperature_f ) FROM weather WHERE date LIKE `` 8/ % '' GROUP BY zip_code
select zip_code , avg ( mean_temperature_f ) from weather where date like value group by zip_code
For each zip code , return the average mean temperature of August there .