The noun weather is a common noun.
A common noun becomes a proper noun when it is the name of a person, place, thing, or a title; for example:
The proper noun is Britain.The common nouns are people, weather, and time.
The nouns in the sentence are Denmark (a proper noun) and weather (a common noun).
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Common
It is a proper noun, because it is the name of a specific thing.
proper
Proper noun
Pencil proper or common noun
it's a common noun. a proper noun would be Spider-Man.
Proper noun or common noun
The noun cassette is a common noun.
a common noun?