September 2015 Summary – Warmest and Fifth Sunniest on Record
Blue Hill Observatory September 2015 Summary: The month was notable for being very warm and mostly dry with much more sun than average. The 24-hour mean temperature for the month of 67.2 deg F was 6.0 degrees warmer than the 120-year average for September, and five degrees warmer than the 1981-2010 30-year average, making September the warmest on record… Read More »









