Editing Tri-Valley (section)

== Climate ==
The climate of the Tri-Valley is mild. Most rain falls in the winter. Snow almost never occurs, although it sometimes falls on the tops of surrounding mountains, especially [[Mount Diablo|Mt. Diablo]]. Summer days are in the 80s to over 100 °F, but nights are often cool. In winter, daytime temperatures reach the 50s and 60s, while nights are in the 30s and 40s, dipping on rare occasions into the 20s. Mean annual rainfall ranges from about {{cvt|14|in|mm}} in Livermore to {{cvt|23|in|mm}} in Alamo.<ref>{{Cite web|url=https://wrcc.dri.edu|title=Cooperative Climatological Data Summaries|website=Western Regional Climate Center|access-date=2018-11-24}}</ref>