January 2020 Summary – Eighth Driest and Ninth Warmest on Record

Blue Hill Observatory January 2020 Summary: January was generally very warm with much less precipitation and snowfall than average. The 24-hour adjusted mean temperature for the month of 32.8 deg F was 7.1 degrees warmer than the 120-year average for January and 6.6 degrees warmer than the 1981-2010 30-year average. The month ranked as the… Read More »

2019 Was Warmer and Wetter Than Average

The year 2019 ended with a 24-hour corrected mean temperature of 49.2F, which was 1.6F warmer than the 120-year (1891-2010) long-term mean and 0.3F above the 30-year (1981-2010) normal. The annual average maximum temperature of 58.0F was 1.1F warmer than the long-term mean, while the annual average minimum temperature of 41.0F was 1.2F warmer than… Read More »

December 2019 Summary – Warmer and Wetter Than Average

Blue Hill Observatory December 2019 Summary: After a very cold start, December was generally mild with much more precipitation and more snowfall than average. The 24-hour adjusted mean temperature for the month of 32.3 deg F was 2.5 degrees warmer than the 120-year average for December and 0.7 degrees warmer than the 1981-2010 30-year average.… Read More »

November 2019 Summary – Cooler and Drier Than Average

Blue Hill Observatory November 2019 Summary: November was very cool with much less rainfall than average. The 24-hour adjusted mean temperature for the month of 38.0 deg F was 4.1 degrees cooler than the 120-year average for November and 2.6 degrees cooler than the 1981-2010 30-year average. The month was the coldest November since 1996.… Read More »

October 2019 Summary – Second Cloudiest on Record

Blue Hill Observatory October 2019 Summary: October was generally warm with much more rainfall and more clouds than average. The 24-hour adjusted mean temperature for the month of 53.3 deg F was 2.2 degrees warmer than the 120-year average for October and 1.9 degrees warmer than the 1981-2010 30-year average. The average maximum temperature of… Read More »

The “Snow Hurricane” of October 10, 1804

The 1804 Hurricane season had already produced a severe hurricane with a path from Antigua to Savannah and Charleston, South Carolina where the storm was felt to be the worst since 1752. In October another major hurricane moved northwestward across the Western Atlantic to north of Puerto Rico, then toward Charleston. Modern reanalysis showed the… Read More »