Table: weather_data_2
Columns: sunshine_hrs_year
rain_mm_year
snow_days_year
storms_days_year
fog_days_year

Question: What is the amount of fog where the rain is 1 109?
SQL: SELECT SUM("fog_days_year") FROM weather_data_2 WHERE "rain_mm_year" = '1 109'

Question: What is the amount of snow where the days for storms are 31?
SQL: SELECT SUM("snow_days_year") FROM weather_data_2 WHERE "storms_days_year" = 31

Question: What is the amount of snow where the sunshine is 1 633, and storms are lower than 29?
SQL: SELECT AVG("snow_days_year") FROM weather_data_2 WHERE "sunshine_hrs_year" = '1 633' AND "storms_days_year" < 29

Question: What are the number of storms where fog is lower than 74, and sunshine is 2 668?
SQL: SELECT COUNT("storms_days_year") FROM weather_data_2 WHERE "fog_days_year" < 74 AND "sunshine_hrs_year" = '2 668'