An example is the Keene Public Library, which occupies a Second Empire mansion built about 1869 by manufacturer Henry Colony.
Keene is located at ) of it is water, comprising 0.67% of the town. The highest point in Keene is the summit of Grays Hill in the city's northwest corner, at 1,388 feet (423 m) above sea level.
During King George's War, the village was attacked and burned by Indians.
During January 2004, Keene saw highs below freezing 25 of the days including five days in the single digits and one day with a high of zero.
The last time a tornado hit Cheshire County was in 1997. The most recent such winter was 2002–2003, when Keene received 112.5" of snow.
The majority of the snowfall in Keene comes from nor'easters, areas of low pressure that move up the Atlantic coast and strengthen.
Keene is located in a humid continental climate zone. The average high temperature in July is 82, and the record high for Keene is 102. S., periods of high humidity can raise heat indices to near 110.
During the summer, Keene can get hit by thunderstorms from the west, but the Green Mountains to the west often break up some of the storms, so that Keene doesn't usually experience a thunderstorm at full strength.