CREATE TABLE station (id VARCHAR, network_name VARCHAR)
CREATE TABLE weekly_weather (low_temperature INT, precipitation INT, station_id VARCHAR)

Give me the maximum low temperature and average precipitation at the Amersham station.
SELECT MAX(t1.low_temperature), AVG(t1.precipitation) FROM weekly_weather AS t1 JOIN station AS t2 ON t1.station_id = t2.id WHERE t2.network_name = "Amersham"
SELECT MAX("t1"."low_temperature"), AVG("t1"."precipitation") FROM "weekly_weather" AS "t1" JOIN "station" AS "t2" ON "Amersham" = "t2"."network_name" AND "t1"."station_id" = "t2"."id"