Editing Ventura County, California (section)

=== Climate ===
[[File:Sunset Over The Topatopa Mountains - From Santa Clarita.jpg|thumb|right|Sunset over the [[Topatopa Mountains]] in northern Ventura County]]
Ventura County has a considerable range in climate because of differences in topography between one part of the county and another. Rainfall is limited in summer and crops have to be irrigated. The average annual temperature is near 60&nbsp;°F at low elevations near the ocean, in the 50s over most of the northern two-thirds of the county, and less than 45&nbsp;°F in the [[Topatopa Mountains]]. The annual range in temperature is between 70&nbsp;°F and 80&nbsp;°F on the Coastal Plain and as much as 100&nbsp;°F in the interior. For July, the average maximum temperature is between 70&nbsp;°F and 80&nbsp;°F on the Coastal Plain but exceeds 90&nbsp;°F in the upper part of the Ventura- and Cuyama River Valleys. For January, the average minimum temperature is near 40&nbsp;°F on the coast but in the lower 30s and upper 20s in the northern parts of Ventura County. No temperature data are available for the highest point in the county, [[Mount Pinos]]. The length of the growing season ranges more than 300 days near the coast to less than 175 days in the coldest part in northern Ventura County. In both the northern and southern ends of the county, the annual precipitation totals between ten and fifteen inches. In the Topatopa Mountains, the annual total is more than thirty-three inches. The drier parts of the county get less than five inches of rain annually, and the higher and wetter parts get more than 60 inches annually. Measureable amounts of rainfall in Ventura County are reported on thirty to thirty-five days annually, and half an inch or more on six to twelve days annually. In the northern parts of Ventura County, snowfall averages five inches or more per year, and along the northern border and Mount Pinos, more than twenty inches.<ref name="Agriculture 1970. Pages 142–143"/>

====Air quality====
{{See also|Ventura County Air Pollution Control District}}
[[Automobile emissions]] account for most of the [[air pollution]]. Other sources include [[chemical plant]]s, [[Filling station|gasoline stations]], paint and [[Environmental impact of cleaning agents|cleaning products]].<ref>{{Cite news|url=https://www.vcstar.com/story/news/politics/2019/09/28/the-environmental-protection-agency-ventura-county-california/3787966002/|title=Ventura County wrongly criticized in EPA air warning, local official says|last=Wilson|first=Kathleen|date=September 28, 2019|newspaper=[[Ventura County Star]]|language=en|access-date=September 29, 2019}}</ref>