Why is it der Summer?

Summer ends in -er, and most nouns ending in -er are masculine: in a German dictionary, 86% of them take der.

All nouns ending in -er
Sense 1
der

Meaning

[1] Device that creates a sum tone when it is operated

[1] Gerät, das einen Summton erzeugt, wenn es betätigt wird

[2] Observed: Summing insect

[2] veraltet: summendes Insekt

Examples

[1] "A loud summer tint"

[1] „Ein lauter Summer tönte.“

[2]

[2]

Declension

1 Singular Plural
Nominativ der Summer die Summer
Genitiv des Summers der Summer
Dativ dem Summer den Summern
Akkusativ den Summer die Summer

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary