私が起きたとき、外は雪だった。

私が起きたとき、外は雪だった。

When I got up, it was snowing outside.

私(わたし)が起(お)きたとき、外(そと)は雪(ゆき)だった。

Watashi ga okita toki, soto wa yuki datta.

私 (わたし、わたくし)

I; me; private affairs; personal matter; secrecy; selfishness

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

起きる (おきる)

to get up; to rise; to blaze up (fire); to wake up; to be awake; to stay awake; to occur (usu. of unfavourable incidents); to happen; to take place

とき (とき)

regular (stops at every station) Jouetsu-line Shinkansen

外 (そと、と)

outside; exterior; open air; other place

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

雪 (ゆき)

snow

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Readings: シ、わたくし、わたし

Meanings: private, I, me

Readings: キ、お.きる、お.こる、お.こす、おこ.す、た.つ

Meanings: rouse, wake up, get up

Readings: ガイ、ゲ、そと、ほか、はず.す、はず.れる、と-

Meaning: outside

Readings: セツ、ゆき

Meaning: snow