Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_98 ( sunlight_hours INTEGER, city_town VARCHAR, days_with_frost VARCHAR )

### Question ###
What is the lowest number of sunlight hours, and number of days with frost, more than 30, for the city of Ourense?

### Accurate SQL ###

SELECT MIN(sunlight_hours) FROM table_name_98 WHERE city_town = "ourense" AND days_with_frost > 30