This is pretty interesting. Houghton is the third most unpredictable for overall weather and the most unpredictable based on precipitation. Predictability is defined as deviations from average.
http://fivethirtyeight.com/features/which-city-has-the-most-unpredictable-weather/
http://fivethirtyeight.com/features/which-city-has-the-most-unpredictable-weather/