Yes

you do need a jacket based on the weather in Clovis, CA, USA 1 second ago

Why? Because it's cool. Pleasantly cool, but cool!
56°F13°C & Clear

Wind is 8 mph13 km/h from the Northwest, gusting to 17 mph28 km/h
May 23
9am55°F13°C7 mph11 km/h NorthwestClear
10am58°F14°C6 mph9 km/h NorthwestClear
11am61°F16°C5 mph8 km/h NorthwestClear
12pm65°F19°C5 mph8 km/h NorthwestClear
1pm70°F21°C6 mph10 km/h NorthwestClear
2pm74°F23°C6 mph9 km/h NorthwestClear
3pm78°F26°C6 mph10 km/h NorthwestClear
4pm81°F27°C7 mph11 km/h NorthwestClear
5pm83°F28°C8 mph12 km/h NorthwestMostly Clear
6pm84°F29°C8 mph13 km/h NorthwestMostly Clear
7pm85°F29°C9 mph14 km/h NorthwestPartly Cloudy
8pm84°F29°C9 mph15 km/h NorthwestPartly Cloudy
DateLowHighWindDayNight
May 2355°F13°C85°F29°C7 mph11 km/h from NorthwestMostly ClearMostly Clear
May 2453°F12°C85°F30°C5 mph8 km/h from NorthwestMostly ClearClear
May 2555°F13°C87°F31°C7 mph11 km/h from NorthwestMostly ClearPartly Cloudy
May 2656°F13°C83°F28°C9 mph15 km/h from NorthwestPartly CloudyClear
May 2756°F13°C89°F32°C4 mph7 km/h from NorthwestClearMostly Clear
May 2861°F16°C94°F34°C5 mph8 km/h from WestMostly ClearMostly Clear
May 2962°F17°C96°F36°C5 mph9 km/h from NorthwestMostly ClearMostly Clear

Yes

Low of 54°F12°C, High of 85°F30°C
Wind: 5 mph8 km/h
Precipitation: None

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