CREATE TABLE table_name_61 (snow__days_year_ INT, storms__days_year_ VARCHAR)

What is the amount of snow where the days for storms are 31?
SELECT SUM(snow__days_year_) FROM table_name_61 WHERE storms__days_year_ = 31
SELECT SUM("snow__days_year_") FROM "table_name_61" WHERE "storms__days_year_" = 31