Yes

you do need a jacket based on the weather in York, UK 1 second ago

Why? Because it's not very warm out!
58°F14°C & Partly Cloudy

Wind is 6 mph9 km/h from the West, gusting to 13 mph21 km/h
July 28
3am59°F15°C6 mph10 km/h WestMostly Cloudy
4am62°F17°C7 mph11 km/h WestMostly Clear
5am65°F19°C8 mph13 km/h WestPartly Cloudy
6am67°F19°C9 mph14 km/h NorthwestMostly Cloudy
7am69°F21°C9 mph15 km/h NorthwestPartly Cloudy
8am70°F21°C11 mph17 km/h NorthwestMostly Cloudy
9am71°F21°C11 mph18 km/h NorthwestMostly Cloudy
10am70°F21°C12 mph20 km/h NorthwestMostly Cloudy
11am70°F21°C13 mph20 km/h NorthwestMostly Cloudy
12pm70°F21°C12 mph19 km/h WestPartly Cloudy
1pm69°F21°C11 mph18 km/h NorthwestPartly Cloudy
2pm67°F20°C10 mph16 km/h WestPartly Cloudy
DateLowHighWindDayNight
July 2755°F13°C71°F21°C10 mph16 km/h from WestPartly CloudyPartly Cloudy
July 2852°F11°C70°F21°C5 mph8 km/h from NorthwestCloudyDrizzle
July 2954°F12°C72°F22°C7 mph11 km/h from WestMostly CloudyMostly Cloudy
July 3057°F14°C72°F22°C6 mph10 km/h from NorthwestDrizzleDrizzle
July 3157°F14°C67°F20°C9 mph14 km/h from NorthDrizzlePartly Cloudy
August 153°F12°C68°F20°C10 mph16 km/h from NorthwestMostly CloudyPartly Cloudy
August 253°F12°C71°F22°C9 mph15 km/h from SouthwestDrizzlePartly Cloudy

Yes

Low of 52°F11°C, High of 70°F21°C
Wind: 5 mph8 km/h
Precipitation: 21% rain

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