Yes

you do need a jacket based on the weather in New Mills, High Peak SK22, UK 1 second ago

Why? Because it's cool. Pleasantly cool, but cool.
50°F10°C & Mostly Cloudy

Wind is 6 mph10 km/h from the E, gusting to 12 mph19 km/h
May 1
2am51°F10°C6 mph10 km/h EMostly Cloudy
3am52°F11°C6 mph9 km/h EMostly Cloudy
4am55°F13°C6 mph10 km/h SEMostly Cloudy
5am57°F14°C7 mph11 km/h SEMostly Cloudy
6am59°F15°C8 mph13 km/h EPartly Cloudy
7am61°F16°C9 mph14 km/h EMostly Cloudy
8am63°F17°C8 mph13 km/h EMostly Cloudy
9am65°F18°C7 mph12 km/h EMostly Cloudy
10am65°F19°C7 mph11 km/h EMostly Cloudy
11am65°F18°C7 mph12 km/h ECloudy
12pm63°F17°C7 mph12 km/h ECloudy
1pm61°F16°C7 mph11 km/h NECloudy
DateLowHighWindDayNight
April 3048°F9°C65°F19°C7 mph12 km/h from EMostly CloudyMostly Cloudy
May 151°F10°C66°F19°C16 mph26 km/h from NEWindyMostly Cloudy
May 250°F10°C61°F16°C7 mph11 km/h from NWDrizzleDrizzle
May 348°F9°C60°F16°C8 mph13 km/h from SWMostly CloudyMostly Cloudy
May 447°F8°C62°F17°C5 mph8 km/h from SMostly CloudyDrizzle
May 550°F10°C63°F17°C7 mph11 km/h from SMostly CloudyMostly Cloudy
May 647°F8°C61°F16°C9 mph14 km/h from NWMostly CloudyPartly Cloudy

Yes

Low of 51°F11°C, High of 66°F19°C
Wind: 16 mph26 km/h
Precipitation: 21% rain

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