Leaves begin turning by the river.

Today is the first day of Autumn. The days are becoming noticeably shorter.

A few leaves down by the San Diego River have already begun to turn. Even through the weather has been hot due to our current Santa Ana conditions, the trees know summer is over.

I took a couple photos of Fremont cottonwood leaves changing their color in Mission Valley this morning. Some yellow has begun showing in all the green.

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I live in downtown San Diego and love to walk around with my camera! You can follow Cool San Diego Sights via Facebook or Twitter!