Editing Livermore, California (section)

===Climate===
{{More citations needed|subsection|date=March 2023|reason=The temperature information is cited, but the climate, and the information on winds, monsoon clouds, and snow is uncited}}
[[File:Snow on Livermore hills.jpg|thumb|Rare occurrence of snow near Livermore in 2023]]
Livermore has a [[hot-summer Mediterranean]] climate ([[Köppen climate classification|Csa]]), although it is close to a [[semi-arid climate]] because of its relatively low annual precipitation, due to being in the [[rain shadow]] of the western portions of the [[Diablo Range]].{{Citation needed|date=August 2024}} Livermore features hot, dry summers and cool winters with occasional rainfall.<ref name=":3">Average Livermore weather [http://weatherspark.com/averages/30789/Livermore-California-United-States] accessed April 20, 2013</ref> The valley's passes direct the normal west to east flow of air through the valley. Usually there is a strong evening wind in the summer that brings cool air off the Pacific Ocean into the Livermore valley as it heads towards the much hotter [[Central Valley (California)|Central Valley]]. This wind is strong enough with an average summer wind speed of about {{convert|9|mph|kph}} and predictable enough to encourage the use of the wind turbines in the [[Altamont Pass]] between the cities of Livermore and Tracy. The period from June to September is extremely dry and is characterized by clear skies. On rare occasion, subtropical moisture occasionally surges into the Livermore Valley in the late summer. This can bring high humidity, monsoon clouds, and, much less commonly, thunderstorms.{{Citation needed|date=August 2024}}

Snow is very rare, but light dustings do occur on the surrounding hills and occasionally in the valley, such as in 2023, 2021, and 2009.<ref>{{Cite web |date=2023-02-24 |title=Over 100 drivers stuck on snow-clogged road in Livermore |url=https://www.ktvu.com/news/over-100-drivers-stuck-on-snow-clogged-road-in-livermore |access-date=2024-08-28 |website=KTVU FOX 2 |language=en-US}}</ref><ref>{{Cite web |date=2021-12-28 |title=Snow sighting in Livermore wine country |url=https://www.ktvu.com/video/1017348 |access-date=2024-08-28 |website=KTVU FOX 2 San Francisco |language=en-US}}</ref><ref>{{Citation |last=Roundtoad |title=Snow, in Livermore? |date=2009-12-07 |url=https://www.flickr.com/photos/34038034@N03/4369946326 |access-date=2024-08-28}}</ref>

{{Clear}}
{{Weather box
| width = auto
| location = Livermore, California (1991–2020 normals, extremes 1903–present)
| single line = Y
|Jan record high F = 81
|Feb record high F = 82
|Mar record high F = 90
|Apr record high F = 97
|May record high F = 108
|Jun record high F = 113
|Jul record high F = 113
|Aug record high F = 112
|Sep record high F = 116
|Oct record high F = 110
|Nov record high F = 92
|Dec record high F = 79
|year record high F= 
|Jan avg record high F= 67.2
|Feb avg record high F= 71.7
|Mar avg record high F= 78.6
|Apr avg record high F= 87.2
|May avg record high F= 94.1
|Jun avg record high F= 102.4
|Jul avg record high F= 103.8
|Aug avg record high F= 103.0
|Sep avg record high F= 100.3
|Oct avg record high F= 91.5
|Nov avg record high F= 78.0
|Dec avg record high F= 66.9
|year avg record high F= 106.2
|Jan high F = 56.8
|Feb high F = 61.0
|Mar high F = 65.8
|Apr high F = 70.6
|May high F = 76.6
|Jun high F = 83.9
|Jul high F = 89.0
|Aug high F = 88.6
|Sep high F = 85.9
|Oct high F = 77.2
|Nov high F = 64.9
|Dec high F = 56.9
|year high F = 73.1
| Jan mean F  = 47.9
| Feb mean F  = 51.0
| Mar mean F  = 54.6
| Apr mean F  = 58.1
| May mean F  = 63.3
| Jun mean F  = 68.8
| Jul mean F  = 72.8
| Aug mean F  = 72.6
| Sep mean F  = 70.3
| Oct mean F  = 63.5
| Nov mean F  = 53.8
| Dec mean F  = 47.9
| year mean F = 60.4
|Jan low F = 39.0
|Feb low F = 41.0
|Mar low F = 43.3
|Apr low F = 45.7
|May low F = 50.0
|Jun low F = 53.8
|Jul low F = 56.6
|Aug low F = 56.6
|Sep low F = 54.7
|Oct low F = 49.7
|Nov low F = 42.8
|Dec low F = 38.8
|year low F = 47.7
|Jan avg record low F= 28.9
|Feb avg record low F= 31.3
|Mar avg record low F= 34.5
|Apr avg record low F= 37.4
|May avg record low F= 42.9
|Jun avg record low F= 47.2
|Jul avg record low F= 51.2
|Aug avg record low F= 51.2
|Sep avg record low F= 47.0
|Oct avg record low F= 41.3
|Nov avg record low F= 33.3
|Dec avg record low F= 28.8
|year avg record low F= 27.0
|Jan record low F = 18
|Feb record low F = 21
|Mar record low F = 22
|Apr record low F = 29
|May record low F = 32
|Jun record low F = 38
|Jul record low F = 36
|Aug record low F = 40
|Sep record low F = 35
|Oct record low F = 29
|Nov record low F = 22
|Dec record low F = 18
|year record low F= 18
|precipitation colour = green
|Jan precipitation inch = 2.78
|Feb precipitation inch = 2.72
|Mar precipitation inch = 2.20
|Apr precipitation inch = 1.10
|May precipitation inch = 0.51
|Jun precipitation inch = 0.12
|Jul precipitation inch = 0.00
|Aug precipitation inch = 0.04
|Sep precipitation inch = 0.09
|Oct precipitation inch = 0.77
|Nov precipitation inch = 1.54
|Dec precipitation inch = 2.73
|year precipitation inch = 14.60
|unit precipitation days = .01 in
|Jan precipitation days = 10.1
|Feb precipitation days = 9.8
|Mar precipitation days = 9.3
|Apr precipitation days = 5.6
|May precipitation days = 3.6
|Jun precipitation days = 1.1
|Jul precipitation days = 0.0
|Aug precipitation days = 0.4
|Sep precipitation days = 0.7
|Oct precipitation days = 2.5
|Nov precipitation days = 6.7
|Dec precipitation days = 9.5
|year precipitation days =
| source 1 = NOAA<ref name = NOAA>
{{cite web
|url = https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-monthly-1991-2020&stations=USC00044997&format=pdf&dataTypes=MLY-TMAX-NORMAL,MLY-TMIN-NORMAL,MLY-TAVG-NORMAL,MLY-PRCP-NORMAL,MLY-SNOW-NORMAL
|publisher = National Oceanic and Atmospheric Administration
|title = U.S. Climate Normals Quick Access – Station: Livermore, CA
|access-date = October 31, 2022
}}
</ref>
| source 2 = National Weather Service<ref name = NOWData>
{{cite web
|url = https://www.weather.gov/wrh/climate?wfo=mtr
|publisher = National Weather Service
|title = NOAA Online Weather Data – NWS San Francisco
|access-date = October 31, 2022
}}
</ref>
| source = 
| collapsed = Y
}}