The Winnipesaukee.com weather factoids says Mount Washington NH is both the coldest at -45.4 F, and the windiest at 94-mph. This .....
www.weather.gov/epz/wxcalc_windchill ..... has the wind chill at -106.6 F.
At Weirs Beach the Winni Marine Cam says it is -13 and 2-mph with the Weirs channel water temp at 33.
The wind chill in Meredith is figured to be -37 F, right now, with temp at -17 and wind at west-10 mph.